Well, this has been a long testing process. The Daybreak has been my daily driver for a few months now, and I have to say, Crin’s IEMs are mostly a hit for me. I generally like his tuning philosophy, with a few exceptions. Will the Daybreak be one of them? You’ll find out.

Test Gear

• Snowsky Melody
• CX31993 DAC
• MacBook — got the smoothest sound from these
• Poco F5
• Cable: Moondrop MC1

Build

It feels solid. Mine is from the later batches, and I haven’t faced any QC issues. These have held up pretty well for the few months I’ve been using them, so I think the build quality is solid and should last a long time with proper care.

The design is pretty basic and minimal and doesn’t look fancy, but I like minimalist design, so it works for me. Though, I wouldn’t mind a bit more of a fancy pattern in the dark empty space on the faceplate.

Comfort

For me, there were some issues because of the long nozzle, and I had to do quite a bit of tip rolling. However, I’ve now found a very comfortable setup. Basically, smaller and shorter eartips work better for me because the nozzle goes quite deep.

For me, the following tips are quite comfortable:

• KZ LS01
• NiceHCK C04
• Audiocular Atmos — mostly a copy of the C04
• Final Audio E

With these, I can comfortably use the Daybreak for hours.

Dunu Candy, Dunu S&S, and KBEAR 07 either feel too big or too small for me, or create too much pressure, which makes them uncomfortable for long listening sessions. I also didn’t have much luck with the wide-bore stock eartips that come with it.

However, you might not have the same problem since I have a particularly unusual ear canal angle. I just wanted to mention it.

Sound Impression

Well, this is almost a perfect jack-of-all-trades IEM. These are very close to my preferred target since I mostly prefer neutral or brighter IEMs.

I would describe them as a pretty “neutral” set with a decent amount of bass. Not necessarily neutral in the strictest sense, but they sound “true” or “correct” to me, if that makes sense.

I feel like these have very little coloration for the most part. However, that also means that some people might find them boring.

The Daybreak is quite dependent on how a song is recorded. If a microphone is sensitive, the mixing is poor, the audio file is of poor quality, or the recording quality is bad, the Daybreak will let you know.

Due to the nature of the tuning, I think it is also a very versatile IEM and should work well across almost every genre.

This is the type of IEM that makes me think, “Yeah, this just works.”

Bass

The bass is decent. The mid-bass has good punch, while the sub-bass is quite controlled and has some rumble. Some people may prefer less of it, especially considering this is supposed to be a relatively neutral set, but for me, it is enough.

The bass has a bouncy feeling to it, and of course, it has excellent control and does not become muddy.

If you want more bass, eartips like the Dunu Candy and Final Audio E can help. However, I don’t like excessive bass and prefer a more open sound, so I mostly opt for wide-bore or normal-bore eartips.

These definitely don’t have basshead-level bass, but bassheads might still appreciate what they offer.

Mids / Vocals

I would say these are ever so slightly warm, so vocals have good body and sound full. They aren’t particularly intimate, but they also aren’t very recessed.

Male Vocals:

Male vocals sound good in some songs, but they may lack the warmth you get from warmer IEMs, which can sometimes make them feel a little dry.

However, I would say they sound quite close to how someone’s voice actually sounds to me.

Female Vocals:

Female vocals sound very good overall, with nothing major to complain about. However, if a singer’s voice reaches very high pitches, it can sometimes sound shrill and even slightly sibilant.

Overall, I find the vocals very natural.

Treble

The treble has a somewhat laid-back presentation, but cymbals and shimmer are still quite present because there is a good amount of air.

In some songs, it can get quite spicy, especially in J-pop. Otherwise, I find it very smooth.

For me, the treble is very smooth, although trebleheads might find it a little too safe.

Instrumental Harshness and Sibilance

There is some instrumental harshness. It’s not the kind of harshness that immediately attacks you, but it can slowly become fatiguing, even at lower volumes. If, for example, you like something like the Aful Explorer or TruthEar Pure, then the Daybreak will sound a bit harsher.

That being said, it depends heavily on the recording and the song. Sometimes it can sound harsh, while other times it sounds very smooth. Acoustic guitars sound crisp, just the right amount.

You might need to adjust the volume depending on the track if you’re sensitive to this. If you want to reduce it, Final Audio E tips or other narrow-bore eartips can help.

For most genres, I feel like this is quite a smooth IEM.

I also wouldn’t call these particularly sibilant in most cases. I would say they sit somewhere in the middle between smooth and harsh. However, if a track already has sibilance, the Daybreak will let you know.

Technicalities

Soundstage:

The soundstage is wide, but with some conditions.

In some songs, the positioning of instruments and vocals feels quite dense, while a few instruments can be especially far away. Because of this, it can sometimes feel like there is quite a bit of empty space.

Whether that’s a good or bad thing is up to you.

It’s both intimate and wide-sounding, and this can vary depending on the song. On average, I wouldn’t call it especially wide. I’d say it’s better than average.

Separation:

The separation is decent, but it isn’t particularly sharp or analytical. Instruments don’t sound completely distinct or constantly demand your attention, but they still have their own sense of space and position. Vocals can feel closer, while some instruments sit further back, giving it good layering without making the presentation feel overly dissected.

Detail Retrieval:

I wouldn’t say it presents microdetails right in your face. There are other sets that do this better than the Daybreak.

Imaging:

Imaging is good. As you would expect from an IEM in this range, everything is correctly placed directionally, but nothing is particularly extraordinary.

Conclusion

The Daybreak may not impress you immediately. It doesn’t have the instant “wow factor” that some IEMs in this price range offer. Instead, it’s a true jack of all trades—and whether you’d prefer that over a master of one is up to you.

It’s for someone who wants a natural, versatile IEM that does almost everything well without demanding attention. The bass is controlled, vocals are natural, the treble is smooth with enough air, and the technical performance is solid without being exceptional in any one area.

If you’re chasing huge bass, extreme detail, or a massive soundstage, there are better choices for those specific traits. But if you want an IEM that’s easy to live with across different genres and has very few major weaknesses, the Daybreak is an easy recommendation.

It may not wow you at first, but its balance is what makes it special.

Daybreaks is one of those iems which is like Jack of all traits and master of none, but somehow I have come to quite like it.

After spending some time with the Juzear Nimbus, I’m quite impressed with what Juzear has managed to achieve at this price. It has a warm, mild V-shaped tuning with a satisfying bass response, smooth but still energetic treble, and a relaxed, musical presentation. You can check my profile for a detailed review on these.

Juzear has been putting out some good products this year, and the Nimbus marks their entry into the very competitive 50-60 dollar segment. After spending some time with it, I think they have made a pretty strong entry.

My preference is mostly balanced, and slightly brighter signatures. I don’t mind bass, but I generally don’t prefer an overwhelming amount of it. That doesn’t mean I don’t appreciate a good bassy IEM, though, so keep my preferences in mind while reading this review.

Testing Gear

• Snowsky Melody
• CX31993 dongle
• MacBook M1
• POCO F5
• OnePlus 13

Specifications & Variant

• Driver: Single 10mm MACCD Dynamic Driver, N52 neodymium magnet
• Impedance / Sensitivity: 32Ω / 108dB
• Connector: 0.78mm 2-pin
• Cable: Modular 3.5mm / 4.4mm (the version I received)
• Variants: 3.5mm / 4.4mm modular version; 3.5mm + microphone + USB-C CX31993 dongle

Build & Comfort

The Nimbus has a metal shell with glass faceplates, and overall the build feels very good for the price. It feels solid in the hand, and personally, I like the design, although I think the faceplates look a little too plain, especially on the right side.

The cable is also quite good, and having a modular cable at this price is a nice addition. It has a slightly rubbery feel and some memory, but it’s still easy enough to manage. The glossy shell is a fingerprint magnet, and I would be careful with scratches.

Comfort is good overall. The nozzle doesn’t sit particularly deep, and the shell is relatively small. Smaller ears should have an easy time with it, while larger ears may need some tip rolling to get the right fit and seal.

Sound

The Nimbus has a warm, mild V-shaped tuning with a relaxed presentation. It has enough bass to give the sound some weight, while the treble remains smooth without making the IEM sound dark.

The three nozzles also make a noticeable difference.

Black: The warmest and bassiest option, with smoother treble. This would be my choice for treble-sensitive listeners.

Red: The brightest and most energetic nozzle with the least amount of bass. It gives vocals and treble more energy, but can also become a little shouty.

White: The most balanced option. It sits between the other two and, in my opinion, is the most versatile.

Bass

The bass is one of the highlights of the Nimbus. It has good sub-bass presence and a fairly meaty mid-bass punch without becoming excessively boomy.

The bass has a slightly softer and slower character rather than sounding particularly tight. It has enough decay to give bass notes some weight and slam, which works nicely with modern recordings and EDM. Pelin by Nova Norda is a good example of this presentation.

The black nozzle brings out the bass the most, giving the Nimbus a noticeably warmer and fuller presentation.

There is also a small amount of bass bleed into the lower mids, but I don’t think it ruins the overall balance. For the price, I think the bass quality is quite good.

Mids

The mids are fairly relaxed and slightly warm. Vocals aren’t particularly forward, especially male vocals, but they have good body and weight.

I prefer the red nozzle over the white, as it brings the vocals further forward and adds more upper-mid energy. Female vocals in particular become clearer and more energetic. Although they can occasionally sound a little sharp, I didn’t find them particularly shouty.

I like the weight the Nimbus gives to guitars and other instruments, although the attack and string plucks aren’t as prominent.

Overall, the mids aren’t the main focus of the Nimbus, but they remain natural and enjoyable rather than feeling overly recessed.

Treble

The treble is smooth but still has enough energy to keep the Nimbus from sounding dull. It has decent air and extension, with the red nozzle adding a little more presence while the black nozzle smooths it out. There is a slight edge around 8kHz, but I wouldn’t call it harsh or particularly sibilant. The red nozzle can become a little fatiguing on some tracks.

Technicalities

Technical performance is decent for the price, but this isn’t where the Nimbus stands out.

The soundstage is slightly above average, but it isn’t particularly wide. There is some width, but depth is limited, which makes the presentation feel somewhat flatter than more technical sets.

Imaging is good, though. Instruments and vocals are easy enough to place, and there is a decent amount of detail available.

Where the Nimbus struggles is separation. With simpler tracks, everything is reasonably well separated, but busy recordings can become congested and overwhelm the single driver.

Comparisons

Kefine Klean SV

The Klean SV is one of my go-to recommendations around this price.

Compared to the Nimbus, the Klean SV sounds cleaner and brighter, with tighter and faster bass and more forward vocals.

The Nimbus, on the other hand, has a thicker and more relaxed presentation, with greater bass weight and slam. The Klean SV can sometimes make vocals sound slightly thin and can get a bit spicy, whereas the Nimbus keeps things tame and smooth without sounding boring.

I quite like the Klean SV’s more technical presentation, but I find the Nimbus more fun and musical, so I have to give the edge to the Nimbus.

Dunu Titan X

Compared to the Titan X, I find the Nimbus more balanced and natural overall. The Nimbus has more rumble and slam, with smoother treble. For me, it’s simply better tuned.

Conclusion

I would recommend the Nimbus to those who want a warm, smooth, and easy-to-listen-to sound rather than something overly bright or analytical. It’s not the most technical IEM, but it’s fun and musical, which I think is its main strength.

It works well for music, movies, and gaming, making it a good all-rounder. With the modular cable and accessories included, I also think it offers good value for the price. Overall, I think Juzear has done an excellent job with the tuning and overall presentation.

Thanks to HiFiGo for sending me the Nimbus for testing and review. However, this hasn’t influenced my thoughts or opinions on the product.

Thanks for reading, and I hope you found this review helpful.

Buying Links (Non-Affiliate)

Official Store
AliExpress
⁠AliExpress
⁠Amazon US
⁠Amazon JP
⁠Amazon AU
⁠Amazon UK
⁠Amazon DE

Juzear has been putting out some good products this year, and the Nimbus marks their entry into the very competitive 50-60 dollar segment. After spending some time with it, I think they have made a pretty strong entry.

My preference is mostly balanced, and slightly brighter signatures. I don’t mind bass, but I generally don’t prefer an overwhelming amount of it. That doesn’t mean I don’t appreciate a good bassy IEM, though, so keep my preferences in mind while reading this review.

Testing Gear

• Snowsky Melody
• CX31993 dongle
• MacBook M1
• POCO F5
• OnePlus 13

Specifications & Variant

• Driver: Single 10mm MACCD Dynamic Driver, N52 neodymium magnet
• Impedance / Sensitivity: 32Ω / 108dB
• Connector: 0.78mm 2-pin
• Cable: Modular 3.5mm / 4.4mm (the version I received)
• Variants: 3.5mm / 4.4mm modular version; 3.5mm + microphone + USB-C CX31993 dongle

Build & Comfort

The Nimbus has a metal shell with glass faceplates, and overall the build feels very good for the price. It feels solid in the hand, and personally, I like the design, although I think the faceplates look a little too plain, especially on the right side.

The cable is also quite good, and having a modular cable at this price is a nice addition. It has a slightly rubbery feel and some memory, but it’s still easy enough to manage. The glossy shell is a fingerprint magnet, and I would be careful with scratches.

Comfort is good overall. The nozzle doesn’t sit particularly deep, and the shell is relatively small. Smaller ears should have an easy time with it, while larger ears may need some tip rolling to get the right fit and seal.

Sound

The Nimbus has a warm, mild V-shaped tuning with a relaxed presentation. It has enough bass to give the sound some weight, while the treble remains smooth without making the IEM sound dark.

The three nozzles also make a noticeable difference.

Black: The warmest and bassiest option, with smoother treble. This would be my choice for treble-sensitive listeners.

Red: The brightest and most energetic nozzle with the least amount of bass. It gives vocals and treble more energy, but can also become a little shouty.

White: The most balanced option. It sits between the other two and, in my opinion, is the most versatile.

Bass

The bass is one of the highlights of the Nimbus. It has good sub-bass presence and a fairly meaty mid-bass punch without becoming excessively boomy.

The bass has a slightly softer and slower character rather than sounding particularly tight. It has enough decay to give bass notes some weight and slam, which works nicely with modern recordings and EDM. Pelin by Nova Norda is a good example of this presentation.

The black nozzle brings out the bass the most, giving the Nimbus a noticeably warmer and fuller presentation.

There is also a small amount of bass bleed into the lower mids, but I don’t think it ruins the overall balance. For the price, I think the bass quality is quite good.

Mids

The mids are fairly relaxed and slightly warm. Vocals aren’t particularly forward, especially male vocals, but they have good body and weight.

I prefer the red nozzle over the white, as it brings the vocals further forward and adds more upper-mid energy. Female vocals in particular become clearer and more energetic. Although they can occasionally sound a little sharp, I didn’t find them particularly shouty.

I like the weight the Nimbus gives to guitars and other instruments, although the attack and string plucks aren’t as prominent.

Overall, the mids aren’t the main focus of the Nimbus, but they remain natural and enjoyable rather than feeling overly recessed.

Treble

The treble is smooth but still has enough energy to keep the Nimbus from sounding dull. It has decent air and extension, with the red nozzle adding a little more presence while the black nozzle smooths it out. There is a slight edge around 8kHz, but I wouldn’t call it harsh or particularly sibilant. The red nozzle can become a little fatiguing on some tracks, though.

Technicalities

Technical performance is decent for the price, but this isn’t where the Nimbus stands out.

The soundstage is slightly above average, but it isn’t particularly wide. There is some width, but depth is limited, which makes the presentation feel somewhat flatter than more technical sets.

Imaging is good, though. Instruments and vocals are easy enough to place, and there is a decent amount of detail available.

Where the Nimbus struggles is separation. With simpler tracks, everything is reasonably well separated, but busy recordings can become congested and overwhelm the single driver.

Comparisons

Kefine Klean SV

The Klean SV is one of my go-to recommendations around this price.

Compared to the Nimbus, the Klean SV sounds cleaner and brighter, with tighter and faster bass and more forward vocals.

The Nimbus, on the other hand, has a thicker and more relaxed presentation, with greater bass weight and slam. The Klean SV can sometimes make vocals sound slightly thin and can get a bit spicy, whereas the Nimbus keeps things tame and smooth without sounding boring.

I quite like the Klean SV’s more technical presentation, but I find the Nimbus more fun and musical, so I have to give the edge to the Nimbus.

Dunu Titan X

Compared to the Titan X, I find the Nimbus more balanced and natural overall. The Nimbus has more rumble and slam, with smoother treble. For me, it’s simply better tuned.

Conclusion

I would recommend the Nimbus to those who want a warm, smooth, and easy-to-listen-to sound rather than something overly bright or analytical. It’s not the most technical IEM, but it’s fun and musical, which I think is its main strength.

It works well for music, movies, and gaming, making it a good all-rounder. With the modular cable and accessories included, I also think it offers good value for the price. Overall, I think Juzear has done an excellent job with the tuning and overall presentation.

Thanks to HiFiGo for sending me the Nimbus for testing and review. However, this hasn’t influenced my thoughts or opinions on the product. Thanks for reading, and I hope you found this review helpful.

⁠Official Store
⁠AliExpress
⁠AliExpress
⁠Amazon US
⁠Amazon JP
⁠Amazon AU
⁠Amazon UK
⁠Amazon DE

Juzear has been putting out some good products this year, and the Nimbus marks their entry into the very competitive 50-60 dollar segment. After spending some time with it, I think they have made a pretty strong entry.

My preference is mostly balanced, and slightly brighter signatures. I don’t mind bass, but I generally don’t prefer an overwhelming amount of it. That doesn’t mean I don’t appreciate a good bassy IEM, though, so keep my preferences in mind while reading this review.

Testing Gear

• Snowsky Melody
• CX31993 dongle
• MacBook M1
• POCO F5
• OnePlus 13

Specifications & Variant

• Driver: Single 10mm MACCD Dynamic Driver, N52 neodymium magnet
• Impedance / Sensitivity: 32Ω / 108dB
• Connector: 0.78mm 2-pin
• Cable: Modular 3.5mm / 4.4mm (the version I received)
• Variants: 3.5mm / 4.4mm modular version; 3.5mm + microphone + USB-C CX31993 dongle

Build & Comfort

The Nimbus has a metal shell with glass faceplates, and overall the build feels very good for the price. It feels solid in the hand, and personally, I like the design, although I think the faceplates look a little too plain, especially on the right side.

The cable is also quite good, and having a modular cable at this price is a nice addition. It has a slightly rubbery feel and some memory, but it’s still easy enough to manage. The glossy shell is a fingerprint magnet, and I would be careful with scratches.

Comfort is good overall. The nozzle doesn’t sit particularly deep, and the shell is relatively small. Smaller ears should have an easy time with it, while larger ears may need some tip rolling to get the right fit and seal.

Sound

The Nimbus has a warm, mild V-shaped tuning with a relaxed presentation. It has enough bass to give the sound some weight, while the treble remains smooth without making the IEM sound dark.

The three nozzles also make a noticeable difference.

Black: The warmest and bassiest option, with smoother treble. This would be my choice for treble-sensitive listeners.

Red: The brightest and most energetic nozzle with the least amount of bass. It gives vocals and treble more energy, but can also become a little shouty.

White: The most balanced option. It sits between the other two and, in my opinion, is the most versatile.

Bass

The bass is one of the highlights of the Nimbus. It has good sub-bass presence and a fairly meaty mid-bass punch without becoming excessively boomy.

The bass has a slightly softer and slower character rather than sounding particularly tight. It has enough decay to give bass notes some weight and slam, which works nicely with modern recordings and EDM. Pelin by Nova Norda is a good example of this presentation.

The black nozzle brings out the bass the most, giving the Nimbus a noticeably warmer and fuller presentation.

There is also a small amount of bass bleed into the lower mids, but I don’t think it ruins the overall balance. For the price, I think the bass quality is quite good.

Mids

The mids are fairly relaxed and slightly warm. Vocals aren’t particularly forward, especially male vocals, but they have good body and weight.

I prefer the red nozzle over the white, as it brings the vocals further forward and adds more upper-mid energy. Female vocals in particular become clearer and more energetic. Although they can occasionally sound a little sharp, I didn’t find them particularly shouty.

I like the weight the Nimbus gives to guitars and other instruments, although the attack and string plucks aren’t as prominent.

Overall, the mids aren’t the main focus of the Nimbus, but they remain natural and enjoyable rather than feeling overly recessed.

Treble

The treble is smooth but still has enough energy to keep the Nimbus from sounding dull. It has decent air and extension, with the red nozzle adding a little more presence while the black nozzle smooths it out. There is a slight edge around 8kHz, but I wouldn’t call it harsh or particularly sibilant. The red nozzle can become a little fatiguing on some tracks, though.

Technicalities

Technical performance is decent for the price, but this isn’t where the Nimbus stands out.

The soundstage is slightly above average, but it isn’t particularly wide. There is some width, but depth is limited, which makes the presentation feel somewhat flatter than more technical sets.

Imaging is good, though. Instruments and vocals are easy enough to place, and there is a decent amount of detail available.

Where the Nimbus struggles is separation. With simpler tracks, everything is reasonably well separated, but busy recordings can become congested and overwhelm the single driver.

Comparisons

Kefine Klean SV

The Klean SV is one of my go-to recommendations around this price.

Compared to the Nimbus, the Klean SV sounds cleaner and brighter, with tighter and faster bass and more forward vocals.

The Nimbus, on the other hand, has a thicker and more relaxed presentation, with greater bass weight and slam. The Klean SV can sometimes make vocals sound slightly thin and can get a bit spicy, whereas the Nimbus keeps things tame and smooth without sounding boring.

I quite like the Klean SV’s more technical presentation, but I find the Nimbus more fun and musical, so I have to give the edge to the Nimbus.

Dunu Titan X

Compared to the Titan X, I find the Nimbus more balanced and natural overall. The Nimbus has more rumble and slam, with smoother treble. For me, it’s simply better tuned.

Conclusion

I would recommend the Nimbus to those who want a warm, smooth, and easy-to-listen-to sound rather than something overly bright or analytical. It’s not the most technical IEM, but it’s fun and musical, which I think is its main strength.

It works well for music, movies, and gaming, making it a good all-rounder. With the modular cable and accessories included, I also think it offers good value for the price. Overall, I think Juzear has done an excellent job with the tuning and overall presentation.

Thanks to HiFiGo for sending me the Nimbus for testing and review. However, this hasn’t influenced my thoughts or opinions on the product. Thanks for reading, and I hope you found this review helpful.

Juzear has been putting out some good products this year, and the Nimbus marks their entry into the very competitive 50-60 dollar segment. After spending some time with it, I think they have made a pretty strong entry.

My preference is mostly balanced, and slightly brighter signatures. I don’t mind bass, but I generally don’t prefer an overwhelming amount of it. That doesn’t mean I don’t appreciate a good bassy IEM, though, so keep my preferences in mind while reading this review.

Testing Gear

• Snowsky Melody
• CX31993 dongle
• MacBook M1
• POCO F5
• OnePlus 13

Specifications & Variant

• Driver: Single 10mm MACCD Dynamic Driver, N52 neodymium magnet
• Impedance / Sensitivity: 32Ω / 108dB
• Connector: 0.78mm 2-pin
• Cable: Modular 3.5mm / 4.4mm (the version I received)
• Variants: 3.5mm / 4.4mm modular version; 3.5mm + microphone + USB-C CX31993 dongle

Build & Comfort

The Nimbus has a metal shell with glass faceplates, and overall the build feels very good for the price. It feels solid in the hand, and personally, I like the design, although I think the faceplates look a little too plain, especially on the right side.

The cable is also quite good, and having a modular cable at this price is a nice addition. It has a slightly rubbery feel and some memory, but it’s still easy enough to manage. The glossy shell is a fingerprint magnet, and I would be careful with scratches.

Comfort is good overall. The nozzle doesn’t sit particularly deep, and the shell is relatively small. Smaller ears should have an easy time with it, while larger ears may need some tip rolling to get the right fit and seal.

Sound

The Nimbus has a warm, mild V-shaped tuning with a relaxed presentation. It has enough bass to give the sound some weight, while the treble remains smooth without making the IEM sound dark.

The three nozzles also make a noticeable difference.

Black: The warmest and bassiest option, with smoother treble. This would be my choice for treble-sensitive listeners.

Red: The brightest and most energetic nozzle with the least amount of bass. It gives vocals and treble more energy, but can also become a little shouty.

White: The most balanced option. It sits between the other two and, in my opinion, is the most versatile.

Bass

The bass is one of the highlights of the Nimbus. It has good sub-bass presence and a fairly meaty mid-bass punch without becoming excessively boomy.

The bass has a slightly softer and slower character rather than sounding particularly tight. It has enough decay to give bass notes some weight and slam, which works nicely with modern recordings and EDM. Pelin by Nova Norda is a good example of this presentation.

The black nozzle brings out the bass the most, giving the Nimbus a noticeably warmer and fuller presentation.

There is also a small amount of bass bleed into the lower mids, but I don’t think it ruins the overall balance. For the price, I think the bass quality is quite good.

Mids

The mids are fairly relaxed and slightly warm. Vocals aren’t particularly forward, especially male vocals, but they have good body and weight.

I prefer the red nozzle over the white, as it brings the vocals further forward and adds more upper-mid energy. Female vocals in particular become clearer and more energetic. Although they can occasionally sound a little sharp, I didn’t find them particularly shouty.

I like the weight the Nimbus gives to guitars and other instruments, although the attack and string plucks aren’t as prominent.

Overall, the mids aren’t the main focus of the Nimbus, but they remain natural and enjoyable rather than feeling overly recessed.

Treble

The treble is smooth but still has enough energy to keep the Nimbus from sounding dull. It has decent air and extension, with the red nozzle adding a little more presence while the black nozzle smooths it out. There is a slight edge around 8kHz, but I wouldn’t call it harsh or particularly sibilant. The red nozzle can become a little fatiguing on some tracks, though.

Technicalities

Technical performance is decent for the price, but this isn’t where the Nimbus stands out.

The soundstage is slightly above average, but it isn’t particularly wide. There is some width, but depth is limited, which makes the presentation feel somewhat flatter than more technical sets.

Imaging is good, though. Instruments and vocals are easy enough to place, and there is a decent amount of detail available.

Where the Nimbus struggles is separation. With simpler tracks, everything is reasonably well separated, but busy recordings can become congested and overwhelm the single driver.

Comparisons

Kefine Klean SV

The Klean SV is one of my go-to recommendations around this price.

Compared to the Nimbus, the Klean SV sounds cleaner and brighter, with tighter and faster bass and more forward vocals.

The Nimbus, on the other hand, has a thicker and more relaxed presentation, with greater bass weight and slam. The Klean SV can sometimes make vocals sound slightly thin and can get a bit spicy, whereas the Nimbus keeps things tame and smooth without sounding boring.

I quite like the Klean SV’s more technical presentation, but I find the Nimbus more fun and musical, so I have to give the edge to the Nimbus.

Dunu Titan X

Compared to the Titan X, I find the Nimbus more balanced and natural overall. The Nimbus has more rumble and slam, with smoother treble. For me, it’s simply better tuned.

Conclusion

I would recommend the Nimbus to those who want a warm, smooth, and easy-to-listen-to sound rather than something overly bright or analytical. It’s not the most technical IEM, but it’s fun and musical, which I think is its main strength.

It works well for music, movies, and gaming, making it a good all-rounder. With the modular cable and accessories included, I also think it offers good value for the price. Overall, I think Juzear has done an excellent job with the tuning and overall presentation.

Thanks to HiFiGo for sending me the Nimbus for testing and review. However, this hasn’t influenced my thoughts or opinions on the product. Thanks for reading, and I hope you found this review helpful.

⁠Official Store
⁠AliExpress
⁠AliExpress
⁠Amazon US
⁠Amazon JP
⁠Amazon AU
⁠Amazon UK
⁠Amazon DE

Juzear has been putting out some good products this year, and the Nimbus marks their entry into the very competitive 50-60 dollar segment. After spending some time with it, I think they have made a pretty strong entry.

My preference is mostly balanced, and slightly brighter signatures. I don’t mind bass, but I generally don’t prefer an overwhelming amount of it. That doesn’t mean I don’t appreciate a good bassy IEM, though, so keep my preferences in mind while reading this review.

Testing Gear

• Snowsky Melody
• CX31993 dongle
• MacBook M1
• POCO F5
• OnePlus 13

Specifications & Variant

• Driver: Single 10mm MACCD Dynamic Driver, N52 neodymium magnet
• Impedance / Sensitivity: 32Ω / 108dB
• Connector: 0.78mm 2-pin
• Cable: Modular 3.5mm / 4.4mm (the version I received)
• Variants: 3.5mm / 4.4mm modular version; 3.5mm + microphone + USB-C CX31993 dongle

Build & Comfort

The Nimbus has a metal shell with glass faceplates, and overall the build feels very good for the price. It feels solid in the hand, and personally, I like the design, although I think the faceplates look a little too plain, especially on the right side.

The cable is also quite good, and having a modular cable at this price is a nice addition. It has a slightly rubbery feel and some memory, but it’s still easy enough to manage. The glossy shell is a fingerprint magnet, and I would be careful with scratches.

Comfort is good overall. The nozzle doesn’t sit particularly deep, and the shell is relatively small. Smaller ears should have an easy time with it, while larger ears may need some tip rolling to get the right fit and seal.

Sound

The Nimbus has a warm, mild V-shaped tuning with a relaxed presentation. It has enough bass to give the sound some weight, while the treble remains smooth without making the IEM sound dark.

The three nozzles also make a noticeable difference.

Black: The warmest and bassiest option, with smoother treble. This would be my choice for treble-sensitive listeners.

Red: The brightest and most energetic nozzle with the least amount of bass. It gives vocals and treble more energy, but can also become a little shouty.

White: The most balanced option. It sits between the other two and, in my opinion, is the most versatile.

Bass

The bass is one of the highlights of the Nimbus. It has good sub-bass presence and a fairly meaty mid-bass punch without becoming excessively boomy.

The bass has a slightly softer and slower character rather than sounding particularly tight. It has enough decay to give bass notes some weight and slam, which works nicely with modern recordings and EDM. Pelin by Nova Norda is a good example of this presentation.

The black nozzle brings out the bass the most, giving the Nimbus a noticeably warmer and fuller presentation.

There is also a small amount of bass bleed into the lower mids, but I don’t think it ruins the overall balance. For the price, I think the bass quality is quite good.

Mids

The mids are fairly relaxed and slightly warm. Vocals aren’t particularly forward, especially male vocals, but they have good body and weight.

I prefer the red nozzle over the white, as it brings the vocals further forward and adds more upper-mid energy. Female vocals in particular become clearer and more energetic. Although they can occasionally sound a little sharp, I didn’t find them particularly shouty.

I like the weight the Nimbus gives to guitars and other instruments, although the attack and string plucks aren’t as prominent.

Overall, the mids aren’t the main focus of the Nimbus, but they remain natural and enjoyable rather than feeling overly recessed.

Treble

The treble is smooth but still has enough energy to keep the Nimbus from sounding dull. It has decent air and extension, with the red nozzle adding a little more presence while the black nozzle smooths it out. There is a slight edge around 8kHz, but I wouldn’t call it harsh or particularly sibilant. The red nozzle can become a little fatiguing on some tracks.

Technicalities

Technical performance is decent for the price, but this isn’t where the Nimbus stands out.

The soundstage is slightly above average, but it isn’t particularly wide. There is some width, but depth is limited, which makes the presentation feel somewhat flatter than more technical sets.

Imaging is good, though. Instruments and vocals are easy enough to place, and there is a decent amount of detail available.

Where the Nimbus struggles is separation. With simpler tracks, everything is reasonably well separated, but busy recordings can become congested and overwhelm the single driver.

Comparisons

Kefine Klean SV

The Klean SV is one of my go-to recommendations around this price.

Compared to the Nimbus, the Klean SV sounds cleaner and brighter, with tighter and faster bass and more forward vocals.

The Nimbus, on the other hand, has a thicker and more relaxed presentation, with greater bass weight and slam. The Klean SV can sometimes make vocals sound slightly thin and can get a bit spicy, whereas the Nimbus keeps things tame and smooth without sounding boring.

I quite like the Klean SV’s more technical presentation, but I find the Nimbus more fun and musical, so I have to give the edge to the Nimbus.

Dunu Titan X

Compared to the Titan X, I find the Nimbus more balanced and natural overall. The Nimbus has more rumble and slam, with smoother treble. For me, it’s simply better tuned.

Conclusion

I would recommend the Nimbus to those who want a warm, smooth, and easy-to-listen-to sound rather than something overly bright or analytical. It’s not the most technical IEM, but it’s fun and musical, which I think is its main strength.

It works well for music, movies, and gaming, making it a good all-rounder. With the modular cable and accessories included, I also think it offers good value for the price. Overall, I think Juzear has done an excellent job with the tuning and overall presentation.

Thanks to HiFiGo for sending me the Nimbus for testing and review. However, this hasn’t influenced my thoughts or opinions on the product.

Thanks for reading, and I hope you found this review helpful.

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It has bit of front lips too so the gestures won't be that smooth since the edges are bit raised and it also has strong magnets . Got it fromhere .

Old photo I found I took 6 years ago from a budget phone.

Oneplus13

These are just my initial impressions; a full review will be coming soon.

This is colored jm1 target iem which has tasefully done Bass and Mids. It's the overall all rounder iem with no focus on one thing with good technicalities.

Bass:

Decent punch and rumble with good control. It's noticeably bassier than neutral sets, especially with Dunu Candy or KBEAR 07 tips.with eq you can pump a good amount of subbass.

Mids:

The mids are lush and slightly warm, giving vocals a fuller and richer presentation. Both vocals and instruments sound natural and engaging.

Treble:

The treble has Moderate energy and detail without being harsh. Wide-bore tips add extra sparkle but not really that much, while the overall tuning remains smooth enough for listeners sensitive to treble fatigue. This lacks air so these won't be really for pure treble heads.

Well during the upcoming goat sale both of these will be around 50k range, I am just getting confused about which one to buy, I would prefer OnePlus but I have heard that OnePlus service centres are shutting down and oppo will be the one providing it but I asked oppo service centre they said they havent started doing it, my question about vivo 200T is origin os, I have seen its not very polished any many features missing like app hiding also since I have out of loop on newer phones so idk much just help a guy out....

Test Gear

• Poco F5
• MacBook M1
• CX31993 Dongle
• Do note that the cable in the image is Audiocular c03 cable not the stock one

Build & Comfort

The Klean SV makes a very strong first impression. The all-metal shell feels compact, dense, and well-finished, but it never becomes bulky or awkward in the ear. The shape is easy to seat, the fit is stable, and comfort remains good even across longer sessions.

What stands out most is how complete the package feels for the price. The included case, cable (fairly good), tips, and especially the three tuning nozzles make it feel like Kefine is trying to offer a more serious product rather than just another cheap budget IEM. It is not flashy, but it feels thoughtfully put together.

The nozzles are made of steel alloy, so they won't oxidize, and they are very easy to swap, which is a nice touch for a budget set. The included tips are also of good quality, especially the KBear tips. The lip is 6.1 mm near the end of the nozzle so it faily comfortable

Nozzles

• Gold: Focuses on vocals and upper mids. It can be a little sharp for some listeners, especially on certain recordings. It gives the sound more presence and can make details in the upper mids more noticeable, but it is not the most forgiving tuning if you are sensitive to brightness.
• Silver: Provides a more neutral balance, offering a smoother and more forgiving listening experience across different genres and recordings.
• Black: Offers a warmer and more balanced sound, with a stronger focus on bass and midrange. It is the most versatile option for general listening and is likely to be the best choice for most people, especially if you prefer a more relaxed sound.

Sound

The overall sound signature of the Klean SV is clean and balanced, with a slight lean toward the brighter side. The tuning is not for bassheads, but it is not so bright that it becomes fatiguing for most listeners. One of the strong points of the Klean SV is its resolution and the way it handles vocals and midrange details.

The treble is energetic and airy, which gives the sound a sense of openness, but it can also be a bit much on certain tracks or with the wrong nozzle choice.

Do keep in mind that I am not a basshead, so my preferences will naturally show in this review, though I will try to remain as neutral as possible.

Bass

The bass is controlled more than it is generous. It has enough mid-bass punch to keep pop, rock, and general listening engaging, but it does not deliver the kind of deep sub-bass rumble that bassheads will want.

I particularly like how the Klean SV handles bass. The low end is tight and the decay is quick, so it almost reminds me of a BA-style bass presentation. The DLC driver in the Klean SV seems to prioritize control over slam, and even with EQ it never feels like a particularly hard-hitting set.

With the Black nozzle, bass feels the most balanced and musical. Silver and Gold keep the bass leaner, which improves perceived clarity but can make the overall signature feel less full. If you want thick slam or heavy rumble, this probably is not your set.

Personally, I preferred the Black and Gold nozzles the most.

Midrange

The midrange is one of the strengths of the Klean SV, especially if you enjoy clear vocals and good separation. Female vocals come through with good presence, and instruments like piano and acoustic guitar sound articulate and easy to follow. The presentation is more open than warm, so it favors clarity over richness.

I would especially like to emphasize how well it handles guitars. You can easily hear the pluck of guitar strings in most tracks, and it is very enjoyable to listen to guitar-focused music with the Klean SV.

The tradeoff is note weight. Male vocals and lower-mid instruments can sound a little thin, especially if you use the brighter nozzles. That does not make the mids bad, just more analytical and less lush than some listeners may prefer.

Treble

Treble is where the Klean SV will divide people. It is detailed, airy (a sense of openness and spaciousness), and energetic, but it can also become bright enough to cross into sharp or sibilant territory on the wrong recording.

Personally, I have not found it particularly harsh or sibilant, but that does not mean you won't.

The Silver nozzle is the most treble-forward, Gold can make upper vocals more intense, and Black is the most sensible choice if you want to keep the top end under control.

For my taste, the treble is best described as clean first and exciting second. It gives the impression of strong resolution and openness, both of which I personally enjoy.

Technical Performance

For a budget single-DD IEM, the Klean SV performs well technically. Detail retrieval (the ability to distinguish fine details in audio) is fair, separation is clean, and imaging (the ability to perceive the spatial location of sounds) is precise enough that busy tracks do not collapse into a blob. It also has good directionality, making it easier to hear where different instruments are positioned.

Soundstage is not huge, but it is not cramped either. It feels natural and reasonably open for the class.

What impresses me most is the sense of control. Transients (the initial attack of a sound) are fairly quick, layering is respectable, and the tuning gives the impression of more cleanliness than most budget sets around this price.

It is not a giant killer in every technical category, but it is competent enough that the tuning does most of the heavy lifting. The tuning gives it a sense of refinement beyond what its price might suggest, while the technical performance is solid enough that it never feels like a gimmick.

Gaming

The Klean SV works well for gaming, especially if you want positional clarity and cleaner directional cues. Footsteps and ambient details are easy to pick out, and the controlled bass prevents explosions from overpowering everything else.

If you look at the last picture(do take the numbers with a ton of salt ,as it is by no means a standard of measurement , just think of it as suggesion), I mentioned that the horizontal soundstage is fairly good, especially in the front 180 degrees compared to the 180 degrees behind you. I would not say the vertical soundstage is particularly strong, though. It is more of a 2D soundstage than a 3D one, but that is not necessarily a problem for gaming since most IEMs in this price range do not have convincing vertical staging anyway.

I mostly tested these with Valorant and CODM. Unfortunately, I could not test them with CS2 because I had recently uninstalled it.

The Klean SV handles the sound design of these games very well. It is not the most spacious-sounding IEM for immersion, but for competitive play it makes a lot of sense. If you prioritize awareness and separation over heavy impact, it is a practical choice.

Comparisons

Klean SV vs Original Klean

Compared with the original Klean, the Klean SV feels cleaner, brighter, and more versatile thanks to the extra nozzle option. The original Klean is generally the warmer, safer, and bassier listen, while the SV leans more toward clarity, air, and technical sharpness.

If you already own the original Klean, the SV is not an automatic upgrade. It is more of a side-grade with a different tuning direction.

If you are buying fresh, the Klean SV makes more sense if you want a more open and detailed sound, while the original Klean may still be the better option if you prefer a fuller and smoother presentation. The better nozzle in SV also is a plus.

Klean SV vs Dunu Titan X

The Titan X is the more V-shaped and fun-sounding set. It has noticeably more bass impact and a more energetic presentation, which makes it the more exciting listen at first.

The Klean SV is cleaner, more balanced, and feels a bit more refined overall. While the Titan X can occasionally become slightly harsh in the treble on certain tracks, the Klean SV generally sounds smoother and easier to listen to for longer sessions.Remember that is how i personally perceive.

Personally, I prefer the Klean SV. It may not be as immediately exciting as the Titan X, but its cleaner tuning and better overall balance make it the set I reach for more often.

Conclusion

The Kefine Klean SV is a well-built, comfortable, and genuinely interesting budget IEM. Its biggest strengths are the compact metal shell, the useful nozzle tuning system, and a clean sound that gives vocals and detail plenty of room to breathe.

Its main weakness is also clear: the tuning can be too bright for some listeners, and the bass is not especially satisfying if you want weight and rumble.

However, if you enjoy a cleaner, more energetic sound and want a budget IEM that feels more refined than its price suggests, the Klean SV is easy to recommend.

Test Gear

• Poco F5
• MacBook M1
• CX31993 Dongle
• Do note that the cable in the image is Audiocular c03 cable not the stock one

Build & Comfort

The Klean SV makes a very strong first impression. The all-metal shell feels compact, dense, and well-finished, but it never becomes bulky or awkward in the ear. The shape is easy to seat, the fit is stable, and comfort remains good even across longer sessions.

What stands out most is how complete the package feels for the price. The included case, cable (fairly good), tips, and especially the three tuning nozzles make it feel like Kefine is trying to offer a more serious product rather than just another cheap budget IEM. It is not flashy, but it feels thoughtfully put together.

The nozzles are made of steel alloy, so they won't oxidize, and they are very easy to swap, which is a nice touch for a budget set. The included tips are also of good quality, especially the KBear tips. The lip is 6.1 mm near the end of the nozzle so it faily comfortable

Nozzles

• Gold: Focuses on vocals and upper mids. It can be a little sharp for some listeners, especially on certain recordings. It gives the sound more presence and can make details in the upper mids more noticeable, but it is not the most forgiving tuning if you are sensitive to brightness.
• Silver: Provides a more neutral balance, offering a smoother and more forgiving listening experience across different genres and recordings.
• Black: Offers a warmer and more balanced sound, with a stronger focus on bass and midrange. It is the most versatile option for general listening and is likely to be the best choice for most people, especially if you prefer a more relaxed sound.

Sound

The overall sound signature of the Klean SV is clean and balanced, with a slight lean toward the brighter side. The tuning is not for bassheads, but it is not so bright that it becomes fatiguing for most listeners. One of the strong points of the Klean SV is its resolution and the way it handles vocals and midrange details.

The treble is energetic and airy, which gives the sound a sense of openness, but it can also be a bit much on certain tracks or with the wrong nozzle choice.

Do keep in mind that I am not a basshead, so my preferences will naturally show in this review, though I will try to remain as neutral as possible.

Bass

The bass is controlled more than it is generous. It has enough mid-bass punch to keep pop, rock, and general listening engaging, but it does not deliver the kind of deep sub-bass rumble that bassheads will want.

I particularly like how the Klean SV handles bass. The low end is tight and the decay is quick, so it almost reminds me of a BA-style bass presentation. The DLC driver in the Klean SV seems to prioritize control over slam, and even with EQ it never feels like a particularly hard-hitting set.

With the Black nozzle, bass feels the most balanced and musical. Silver and Gold keep the bass leaner, which improves perceived clarity but can make the overall signature feel less full. If you want thick slam or heavy rumble, this probably is not your set.

Personally, I preferred the Black and Gold nozzles the most.

Midrange

The midrange is one of the strengths of the Klean SV, especially if you enjoy clear vocals and good separation. Female vocals come through with good presence, and instruments like piano and acoustic guitar sound articulate and easy to follow. The presentation is more open than warm, so it favors clarity over richness.

I would especially like to emphasize how well it handles guitars. You can easily hear the pluck of guitar strings in most tracks, and it is very enjoyable to listen to guitar-focused music with the Klean SV.

The tradeoff is note weight. Male vocals and lower-mid instruments can sound a little thin, especially if you use the brighter nozzles. That does not make the mids bad, just more analytical and less lush than some listeners may prefer.

Treble

Treble is where the Klean SV will divide people. It is detailed, airy (a sense of openness and spaciousness), and energetic, but it can also become bright enough to cross into sharp or sibilant territory on the wrong recording.

Personally, I have not found it particularly harsh or sibilant, but that does not mean you won't.

The Silver nozzle is the most treble-forward, Gold can make upper vocals more intense, and Black is the most sensible choice if you want to keep the top end under control.

For my taste, the treble is best described as clean first and exciting second. It gives the impression of strong resolution and openness, both of which I personally enjoy.

Technical Performance

For a budget single-DD IEM, the Klean SV performs well technically. Detail retrieval (the ability to distinguish fine details in audio) is fair, separation is clean, and imaging (the ability to perceive the spatial location of sounds) is precise enough that busy tracks do not collapse into a blob. It also has good directionality, making it easier to hear where different instruments are positioned.

Soundstage is not huge, but it is not cramped either. It feels natural and reasonably open for the class.

What impresses me most is the sense of control. Transients (the initial attack of a sound) are fairly quick, layering is respectable, and the tuning gives the impression of more cleanliness than most budget sets around this price.

It is not a giant killer in every technical category, but it is competent enough that the tuning does most of the heavy lifting. The tuning gives it a sense of refinement beyond what its price might suggest, while the technical performance is solid enough that it never feels like a gimmick.

Gaming

The Klean SV works well for gaming, especially if you want positional clarity and cleaner directional cues. Footsteps and ambient details are easy to pick out, and the controlled bass prevents explosions from overpowering everything else.

If you look at the last picture(do take the numbers with a ton of salt ,as it is by no means a standard of measurement , just think of it as suggesion), I mentioned that the horizontal soundstage is fairly good, especially in the front 180 degrees compared to the 180 degrees behind you. I would not say the vertical soundstage is particularly strong, though. It is more of a 2D soundstage than a 3D one, but that is not necessarily a problem for gaming since most IEMs in this price range do not have convincing vertical staging anyway.

I mostly tested these with Valorant and CODM. Unfortunately, I could not test them with CS2 because I had recently uninstalled it.

The Klean SV handles the sound design of these games very well. It is not the most spacious-sounding IEM for immersion, but for competitive play it makes a lot of sense. If you prioritize awareness and separation over heavy impact, it is a practical choice.

Comparisons

Klean SV vs Original Klean

Compared with the original Klean, the Klean SV feels cleaner, brighter, and more versatile thanks to the extra nozzle option. The original Klean is generally the warmer, safer, and bassier listen, while the SV leans more toward clarity, air, and technical sharpness.

If you already own the original Klean, the SV is not an automatic upgrade. It is more of a side-grade with a different tuning direction.

If you are buying fresh, the Klean SV makes more sense if you want a more open and detailed sound, while the original Klean may still be the better option if you prefer a fuller and smoother presentation. The better nozzle in SV also is a plus.

Klean SV vs Dunu Titan X

The Titan X is the more V-shaped and fun-sounding set. It has noticeably more bass impact and a more energetic presentation, which makes it the more exciting listen at first.

The Klean SV is cleaner, more balanced, and feels a bit more refined overall. While the Titan X can occasionally become slightly harsh in the treble on certain tracks, the Klean SV generally sounds smoother and easier to listen to for longer sessions.Remember that is how i personally perceive.

Personally, I prefer the Klean SV. It may not be as immediately exciting as the Titan X, but its cleaner tuning and better overall balance make it the set I reach for more often.

Conclusion

The Kefine Klean SV is a well-built, comfortable, and genuinely interesting budget IEM. Its biggest strengths are the compact metal shell, the useful nozzle tuning system, and a clean sound that gives vocals and detail plenty of room to breathe.

Its main weakness is also clear: the tuning can be too bright for some listeners, and the bass is not especially satisfying if you want weight and rumble.

However, if you enjoy a cleaner, more energetic sound and want a budget IEM that feels more refined than its price suggests, the Klean SV is easy to recommend.

Test Gear

• Poco F5
• MacBook M1
• CX31993 Dongle
• Do note that the cable in the image is Audiocular c03 cable not the stock one

Build & Comfort

The Klean SV makes a very strong first impression. The all-metal shell feels compact, dense, and well-finished, but it never becomes bulky or awkward in the ear. The shape is easy to seat, the fit is stable, and comfort remains good even across longer sessions.

What stands out most is how complete the package feels for the price. The included case, cable (fairly good), tips, and especially the three tuning nozzles make it feel like Kefine is trying to offer a more serious product rather than just another cheap budget IEM. It is not flashy, but it feels thoughtfully put together.

The nozzles are made of steel alloy, so they won't oxidize, and they are very easy to swap, which is a nice touch for a budget set. The included tips are also of good quality, especially the KBear tips. The lip is 6.1 mm near the end of the nozzle so it faily comfortable

Nozzles

• Gold: Focuses on vocals and upper mids. It can be a little sharp for some listeners, especially on certain recordings. It gives the sound more presence and can make details in the upper mids more noticeable, but it is not the most forgiving tuning if you are sensitive to brightness.
• Silver: Provides a more neutral balance, offering a smoother and more forgiving listening experience across different genres and recordings.
• Black: Offers a warmer and more balanced sound, with a stronger focus on bass and midrange. It is the most versatile option for general listening and is likely to be the best choice for most people, especially if you prefer a more relaxed sound.

Sound

The overall sound signature of the Klean SV is clean and balanced, with a slight lean toward the brighter side. The tuning is not for bassheads, but it is not so bright that it becomes fatiguing for most listeners. One of the strong points of the Klean SV is its resolution and the way it handles vocals and midrange details.

The treble is energetic and airy, which gives the sound a sense of openness, but it can also be a bit much on certain tracks or with the wrong nozzle choice.

Do keep in mind that I am not a basshead, so my preferences will naturally show in this review, though I will try to remain as neutral as possible.

Bass

The bass is controlled more than it is generous. It has enough mid-bass punch to keep pop, rock, and general listening engaging, but it does not deliver the kind of deep sub-bass rumble that bassheads will want.

I particularly like how the Klean SV handles bass. The low end is tight and the decay is quick, so it almost reminds me of a BA-style bass presentation. The DLC driver in the Klean SV seems to prioritize control over slam, and even with EQ it never feels like a particularly hard-hitting set.

With the Black nozzle, bass feels the most balanced and musical. Silver and Gold keep the bass leaner, which improves perceived clarity but can make the overall signature feel less full. If you want thick slam or heavy rumble, this probably is not your set.

Personally, I preferred the Black and Gold nozzles the most.

Midrange

The midrange is one of the strengths of the Klean SV, especially if you enjoy clear vocals and good separation. Female vocals come through with good presence, and instruments like piano and acoustic guitar sound articulate and easy to follow. The presentation is more open than warm, so it favors clarity over richness.

I would especially like to emphasize how well it handles guitars. You can easily hear the pluck of guitar strings in most tracks, and it is very enjoyable to listen to guitar-focused music with the Klean SV.

The tradeoff is note weight. Male vocals and lower-mid instruments can sound a little thin, especially if you use the brighter nozzles. That does not make the mids bad, just more analytical and less lush than some listeners may prefer.

Treble

Treble is where the Klean SV will divide people. It is detailed, airy (a sense of openness and spaciousness), and energetic, but it can also become bright enough to cross into sharp or sibilant territory on the wrong recording.

Personally, I have not found it particularly harsh or sibilant, but that does not mean you won't.

The Silver nozzle is the most treble-forward, Gold can make upper vocals more intense, and Black is the most sensible choice if you want to keep the top end under control.

For my taste, the treble is best described as clean first and exciting second. It gives the impression of strong resolution and openness, both of which I personally enjoy.

Technical Performance

For a budget single-DD IEM, the Klean SV performs well technically. Detail retrieval (the ability to distinguish fine details in audio) is fair, separation is clean, and imaging (the ability to perceive the spatial location of sounds) is precise enough that busy tracks do not collapse into a blob. It also has good directionality, making it easier to hear where different instruments are positioned.

Soundstage is not huge, but it is not cramped either. It feels natural and reasonably open for the class.

What impresses me most is the sense of control. Transients (the initial attack of a sound) are fairly quick, layering is respectable, and the tuning gives the impression of more cleanliness than most budget sets around this price.

It is not a giant killer in every technical category, but it is competent enough that the tuning does most of the heavy lifting. The tuning gives it a sense of refinement beyond what its price might suggest, while the technical performance is solid enough that it never feels like a gimmick.

Gaming

The Klean SV works well for gaming, especially if you want positional clarity and cleaner directional cues. Footsteps and ambient details are easy to pick out, and the controlled bass prevents explosions from overpowering everything else.

If you look at the last picture(do take the numbers with a ton of salt ,as it is by no means a standard of measurement , just think of it as suggesion), I mentioned that the horizontal soundstage is fairly good, especially in the front 180 degrees compared to the 180 degrees behind you. I would not say the vertical soundstage is particularly strong, though. It is more of a 2D soundstage than a 3D one, but that is not necessarily a problem for gaming since most IEMs in this price range do not have convincing vertical staging anyway.

I mostly tested these with Valorant and CODM. Unfortunately, I could not test them with CS2 because I had recently uninstalled it.

The Klean SV handles the sound design of these games very well. It is not the most spacious-sounding IEM for immersion, but for competitive play it makes a lot of sense. If you prioritize awareness and separation over heavy impact, it is a practical choice.

Comparisons

Klean SV vs Original Klean

Compared with the original Klean, the Klean SV feels cleaner, brighter, and more versatile thanks to the extra nozzle option. The original Klean is generally the warmer, safer, and bassier listen, while the SV leans more toward clarity, air, and technical sharpness.

If you already own the original Klean, the SV is not an automatic upgrade. It is more of a side-grade with a different tuning direction.

If you are buying fresh, the Klean SV makes more sense if you want a more open and detailed sound, while the original Klean may still be the better option if you prefer a fuller and smoother presentation. The better nozzle in SV also is a plus.

Klean SV vs Dunu Titan X

The Titan X is the more V-shaped and fun-sounding set. It has noticeably more bass impact and a more energetic presentation, which makes it the more exciting listen at first.

The Klean SV is cleaner, more balanced, and feels a bit more refined overall. While the Titan X can occasionally become slightly harsh in the treble on certain tracks, the Klean SV generally sounds smoother and easier to listen to for longer sessions.Remember that is how i personally perceive.

Personally, I prefer the Klean SV. It may not be as immediately exciting as the Titan X, but its cleaner tuning and better overall balance make it the set I reach for more often.

Conclusion

The Kefine Klean SV is a well-built, comfortable, and genuinely interesting budget IEM. Its biggest strengths are the compact metal shell, the useful nozzle tuning system, and a clean sound that gives vocals and detail plenty of room to breathe.

Its main weakness is also clear: the tuning can be too bright for some listeners, and the bass is not especially satisfying if you want weight and rumble.

However, if you enjoy a cleaner, more energetic sound and want a budget IEM that feels more refined than its price suggests, the Klean SV is easy to recommend.

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