My headphones are from the MANUFAKTUR series where you can select from different materials, colors etc. and you can also have a personal engraving 

Take a look at this post. I would get the upgraded version right from the start. Especially if you plan to get the amp as a long term investment I would not try to save some money at the wrong end.

Do not get confused by the name. Only because it was named JAZZ does not mean it was made especially for that purpose. I listen a lot to EDM and think it sounds great. In comparison to the integrated amp of my soundcard the JAZZ offers a punchier bass that is also better defined. The soundcard...

I own the JAZZ which also uses an AD-converter for the volume potentiometer and can hear silent "ticks" when changing the volume. I only notice them at higher volumes and when no music is playing.   In my opinion it is normal and nothing to worry about. Each change from one volume step to...

Metal is not really my thing so I have no tracks from this genere but I own a few rock songs. Like mentioned before: some records can shine while others seem to sound the same way as before. I tried a few records and I would do anything for love from Meat Loaf is very impressive. I can not...

The new ƒƒ-Upgrade Meier Audio has released a new technology called frequency adaptive feedback which is available for the CORDA JAZZ, CLASSIC and DACCORD amps. Jan uses the symbol ƒƒ for this technology which normally stands for "fortissimo" in musical notations and means "very loud". Of course...

OK!    Small status update: Jan wrote me that my amp has been finished and will be dispatched today. With some luck it could be here tomorrow but I guess Monday will be more realistic.

I wonder how it affects tracks that already have some more "aggressive" mids and highs. I hope they will not tend to sound harsh with this technique.  

Thanks a lot for that insight. It sounds very promising. Can't wait to get back my amp from Jan. I will be on vacation the next two weeks, so more than enough time for testing.   But so far a moment of silence please...     

OMG - there is an upgrade option?! I must have been blind when I visited the website last time...   Aww man, now I have to think about this option too. I will wait for further technical details about this new feature but I guess it will end like always: there is something better - I  must...

Interesting but hard to imagine that there will be "a clear increase of sound quality".   Anyway, I am still super happy with my regular JAZZ 

Mhhh, I would throw in the Corda JAZZ from Meier Audio. I use it with a DT990 (600 Ohm) and like you I use that stuff on my PC with an Auzentech X-Fi Forte which also has an integrated amp like your card. So I think in some way we are sitting in the same boat    You can take a look at my...

So, I did that overnight test now and can not share the experience with zigy626. I am not able to say that it sounds better or like a different amp. To me it sounds like always.   Maybe that effect is caused by other simple reasons like the fact that the ears had time to rest overnight. That...

Sounds interesting. I will have to give it a try right now. I will go to bed in a few minutes and let it stay on overnight.   I do not think that this will really harm the amp directly but like any other electronic part they have a specific run time before they malfunction in some way. So in...

Maybe I found the reason why there is a hardly audible hum at very loud volume settings: have you tried it with the headphone connected to an audio source or without?   If I disconnect the amp from my soundcard it is dead silent even at maximum volume but if I test it plugged into the...