Sorry for posting the same question which appeared hundred times, currently I have a integrated DAC AUNE X1, it do have a Amp itself. But for K701 it's obviously insufficient, I use a Macbook pro + Amarra to output optical digital signal to the AUNE X1, it do performance good at piano solo or light music, but for Rock and Electronic all the mid-frequencies seem to be messed up (although the high-frequency part seem to be ok).
Personally I prefer to enjoy the soundtrack of films or games and pop music with my K701, so it really annoying to feel upset when listening to the most passionate part of a BGM only to find that the sound of mids are all tangly.
I have heard that K701 has a wonderful performance on WA6SE (by Dubstep Girl) and Audiovalve RKV MK2 (It more like a country myth in my motherland), but they are all above 1000 dollars. And although currently I studied in Germany, I have never had a chance to listen K701 with RKV MK2.
I do heard K701 with SAC K1000, but I am not satisfied with this combination cause all the girls's voice part seems to be aging and which is intolerant for me. Other combination, such as with Lehrmann are also not good.
So back to the question again, are there any class A (tube or hybrid) desk amp can make K701's mid performance more clear and separated? And it should also below the price 600 euro?
Really thanks for your sincere help,