JBL Flip 6 EQ
What I listen to the most is Classic Metal, Hard Rock, Nu Metal, and similar genres. Still, I’ve noticed that it works really well with other genres too.
The EQ in the JBL Portable app is more general-purpose depending on personal taste or the situation — for example, slightly lowering the bass indoors or when listening to bass-heavy genres.
The second EQ is my actual baseline. With it, I correct a few things about the JBL sound, such as:
- Improving the real low bass (30–60 Hz)
- Reducing low mids (which tend to get muddy when boosting bass too much) (180–250 Hz)
- Adding body to the mids around 500 Hz
- Making the highs clearer at 16 kHz
- Boosting 4 kHz and 1 kHz isn’t mandatory, but for me it usually helps bring out the guitars, giving them more aggression, harmonics, brightness, and more presence in distorted tones.
Now, an extra tip for people who truly care about good audio: enable “Mono Audio” on the source device. This makes the JBL sound much cleaner in the highs from 5 kHz to 20 kHz. For some reason, JBL tends to “sand off” the treble and remove details almost as if there’s compression happening, but sending direct mono audio makes it sound perfect.
It’s subtle, but once you notice it, it’s impossible to ignore.
From what I can tell, with this enabled there’s basically 0 compression — I could even say that full 320 kbps MP3s are reproduced without any detail loss caused by compression. (I honestly don’t know why JBL doesn’t do this natively on a speaker that is mono by default.)
