I need an amp/DAC combo for HE 400. I would like to invest a bit more and use a bit more my headphones while working by computer. Never had any special amplification for headphones ... because I have mainly listened to music via speaker system. Basically I would like to spend around 300 euro ... cca 350$. I can make small sonic modifications via EQ software ... so I need straight ahead amp which can drive HE-400 (and for other purposes my older AKG 271s).
I have thought about Audio GD, maybe Schiit, Meier Corda or O2 amps. Unfortunately I will have to buy blindly any of them.
All recommendations are welcome, especially items I can buy directly in Europe.