Totally agree with you! Best dynamic IEM.

Quote: Lars, from time to time I get in touch with the developer of the rockbox port for HiFIMAN devices. BTW he lives in Moscow. I asure you that Rockbox works fine on HM-801 for already more than a year. Don't mislead fellow headfiers plz. The only real problem is with the dislays of the...

Quote: Rockbox works perfectly with HM-801, don't worry. There can be some problems with HM-60x Slim, but not with HM-801, all the problems have been fixed long time ago. I ment that you have to install Rockbox and 0.19 at the same time. You will be able to use both. I use Rockbox only as a...

Quote: I've told you right from the beginning that this problem is easy to be solved. :) All you have to do is to make a dualboot firmware (0.19 + Rockbox). I've already made one, so download it from here: http://nekaka.com/d/UrAsswYnh4 Put the IMG file into the internal memory, and the...

Quote: Nothing will be lost, you will even gain a proper auto power off after timeout. All the SD cards work properly if you make a dualboot firmware (0.19 + Rockbox).   Yes, you can always return the 0.23.

Quote: I remember that 0.19 in comparison with 0.23 sounds fullier, rich, with better imaginary stage and attack. I compared HM-801 + SYMMcard amp with MyST PortaDAC 1866OCUB not so long ago. With 0.19 HM-801 sounds very similar to PortaDAC. Anfortunatelly I can't say the same about Rockbox...

Quote: Here you go. http://nekaka.com/d/k9Uj1ke2O2   BTW, 0.19 is the best sounding firmware. Check it out. There is no problem with SD if you make a dualboot firmware (0.19 + Rockbox). 

Quote: I should say that ER4S is quite sensive to output impendance. ;)

Quote: You can try adding replay gain to the metadata of your files. Rockbox understands this parameter. This way you won't have any disbalance even with more gain power.   Few days ago I got my SYMMcard amplifier. A wonderful amp that sounds exactly like the line out. I will translate...

Quote: It's a pity that I don't understand the difference between the measurements.   Update: Now I see what you are talking about.   By the way, I will probably lay my hands on the SYMM card apm this week, so I'll be able to review it soon.

Quote: Thanks for the review. I must say, I definitely don't understand the logic of creating multiple threads devoted to an exact same model.

Quote: I know several people in Moscow, who use UM customs with modified Game amp or SYMM card, and they never mentioned any problems with little room for volume adjustment. So I don't think, that it will cause you any trouble. After all, the volume wheel is very accurate and you can set...

Quote:   Yes, HM-801 now defenetly has more gain. Also I should admit that I like the sound of the original firmware even more than of rockbox. Game amp now shows the difference between them much more clearly. Original firmware is more analog sounding.

Quote: Yes, it's an alternative apm desingned by a russian engeneer from Saratov city (user Symmcat). In Russia it is considered to be the best amp for HM-801, but it's a deficit one at the moment. There is already a line of people waiting for Sergey to produse more SYMM cards. I am one of...

Quote:   Sure, here you go. In my opinion Bing is even better than Google Translate when it comes to EN-RU or RU-EN translation. I'll try to translate the instruction later. I'm a little bit busy these days.