This glitch is very real, don't forget to always cycle eq on, select a different eq preset, and then turn off. I do this every time before listening otherwise I'm left wondering why the sound quality got weird. I can't open Fiios firnware link, the website just hangs loading for ages.. I recall...

the PA10 will bring the most benefit imo with full sized cans and dynamic IEMs. With balanced armatures it can sound a little metallic, and it's not always an improvement over a direct connection. The PA10 isn't warm imo - I'd say it's very neutral, but it being class A it's controlled and...

I've compared the HD800s across different sources and amplifiers - most other amps don't control their brightness, but RME ADI fs > 3.5mm PA10 is smooth as butter and cocoons the harshness in way that it tell me yes these a bright tuned headphones but presents them in a safe smooth way - making...

Via the PA10 it's better no surprise - it's a touch smoother, less grainy and wider sounding. I'm not completely sold on the Q15 as a source however, I need to spend more time with it. The main reason why I purchased it was it's EQ, but it's got some bugs so I can't use it as I wish over usb.

It essentially cocoons the mid and high frequencies so they aren’t harsh - typical good class A - everything is there, details etc, just cocooned in a safe smooth environment. I think it might be the single ended output which may be smoother also over the balanced. I also felt the same thing...

Not sure what happened today - I had my Sony DAP plugged in balanced on the PA10 most of the day, the sound was nice enough but it didn't strike me as particularly warm or enough class A sounding. When I got home, I again was not particularly impressed even with the Fiio q15 as source.. then I...

lordy lord, are people still talking about micro sd cards improving the sound? What if I don't use any micro sd card but only local storage of the DAP- is that the best sound quality?

PA10 is an interesting amplifier. I'd like it to have more class A warmth - it has a touch of cold/steely sounding timbre but coupled with the other class A goodness (headroom and good transients). It pairs well with warmer headphones I feel, or warmer sources. Generally fares better with...

Looks like EQ is working on my laptop (with reduced volume)!, but didn't I think over my iphone usb it worked - I will investigate further. There were some issues when changing EQ presets, it would forget to change, and sometimes lower volume would get set even when turning off EQ. Also...

Mine isn’t working - it just lowers the volume, but eq change isn’t applied

Sometimes firmware update doesn't work - you have to factory reset your device and try again

I'm eagerly awaiting for the USB EQ bugfix - @FiiO any thoughts when we can expect a release? Also EQ on coax input?

The only reason Gryphon isn't my main device is due to it's lack of EQ. I'm using DAPs, RME ADI 2, Qudelix and now Q15 (still waiting on bugfixes to be able to use USB EQ).

The dac implementation on the gryphon is very nice and it can easily compete with the Q15, and sound even more special in a more analogue, relaxed and bloomy way - musical is the word, and when I pay a good few $, I'd like to hear more special sauce in the sound sig. The Q15 is also good in its...

There are many bugs at the moment with the Firmware, especially with EQ. EQ over usb has major problems, sometimes it doesnt work at all when on, it renames the output to DevKit interface, it lower the volume by a huge amount, and sometimes it doesn't even save the changes. It's has major bugs -...