r/tubeamps

I still had too much loose low end even after changing my 12 inch V30 to Eight-15.

I closed the back and put som cheapo acoustic foam on th walls inside.

It improved my low end characteristic and presence .

Closed back cabs are best for untreated rooms at home , it's too bad that it can't be done on combo amps.

A very generous gift from a GF back in the day, with a great story behind it. I’d been checking this amp out for a while at a local shop and told her about it. Since she played, she wanted to see it. On the way there she said she needed to make a quick stop at some store, so I waited in the car. When we got to the music store there it was, with a bow and birthday card on it. She called the shop and talked them into getting the bow along with the card, and writing in it her note to me. Absolutely unreal.

This may be a little niche, but an important "buyer beware" to all nonetheless.

Many customers of Nashville amp builder Grammatico Amps have stated they have ordered amps going back as far as early 2024 and never received their amps. His amps run anywhere from upper $2,000s to $3,000+. While these customers have been waiting on orders to be fulfilled, John Grammatico has refused to build their amps, outright made fun of one customer, but still finds the time to build an amp for Morgan Wallen's guitar player.

I think the screenshots speak loud and clear, as they are Grammatico's own words. These are from a few of the victims and their names and emails have been redacted. Crazy that he just told someone just this week that he could build TWO amps in 3 weeks!

Keep in mind that each of these "non players" (his words) paid roughly $3,000 a piece just for him to decide he doesn't feel like building them an amp until they have "made amends" with him.

Edit: Tyler Tomlinson is a killer guitar player and, based on my investigation thus far, has no business or personal relationship, attachment, or involvement with Grammatico outside of owning one of his amps. So please do not fault Tyler for anything, I am simply using this post to show that Grammatico has been and still is able to build amps.. he just doesn't want to (???)

Wondering if anyone has run into this issue. I played last night and the previous nights just fine. Went to fire up the amp this morning and was getting fairly loud static noise coming from amp/speaker. I took the amp with me to work to test and it worked perfectly fine. The issue only seems to happen at my apartment. I’ve tried many different power outlets and a couple different conditioners. Still the issue continues. I do live in an old quad plex. Does the wiring in my building just suck?

Built this from a KLD 5W kit, based on the Gibson GA-5. Its a great sounding practice amp with some nice crunch when you crank the gain.
The speaker is a "True Blue" from guitar center. Nice little cheap replacement speaker with a throaty, scooped kind of tone.

I just sold my Line6 Flextone II and peavy 412MS cab to purchase a VK100 and matching cab. Is this an upgrade? Is it a good idea? The band i’m in plays mainly death metal and hardcore.

I sold my old setup for $310 and the new setup is $450.

1st photo: old
2nd photo: new

Hey guys this is my first amp. It's a MarkIIC+ with a couple changes in the circuit it's got independent controls for the 2 channels except for presence because it didn't really seem to make sense to me when I was designing the PCB it's a 50Watter with 2 6L6GC. For the first 2 preamp stages I've used 2 triodes in parallel because they reduce the noise of the stage by the squareroot of 2 which in the first stages is pretty interesting because it lowers the overall noise of the amp by a lot. I've used this same noise reduction tecnique in my thesis so why not use it here too. The pcbs have a couple of small mistakes but nothing that compromises the amp functionality I just had to wire the channel switching circuit and the Master pots the other way around. The EQ is mostly smd with gyrators instead of inductors because the inductors are really hard to find where I live. I havent installed it in the cabinet yet because some screws are missing but the last photo is a mockup of how it will look once all is done.

Amp works for one second after I hit the back of this speaker then fades out. Any idea what could cause this?

I found a deal I couldn't pass up on this Monoprice Stage Right amp. Looking at the schematic it looks like a 5F2 tweed Princeton without the tube rectifier. As is, It sounds fine for a practice amp, but hook up a 12 inch speaker cab into the external speaker jack and WOW!! What a great, harmonically rich amp.
It breaks up so nicely at (close to) bedroom volume. Anyone else have any thoughts or experience with this little amp? I don't have any circuit mods in mind but I'll be rehoming this amp in a bigger cab soon.

It’s a fender supersonic 22 tube amp. I am using a Carl’s Custom speaker soaker attenuator here, but it did the same thing when cranked before I ever got the attenuator. It’s most noticeable when I roll the guitar’s tone knob down. I’m pretty new to tube amps I’m out of my depth.