What are the good (inexpensive) headphone amps?


What are the good (inexpensive) headphone amps? 

jusam

The schiit vali 2 is a nice little tube hybrid Amp. Herb Reichert gave it a good review. Also the Musical Fidelity LX2 HPA. A bit up the ladder, the Novo by Graham slee. Geshelli labs makes a good Amp as well.  

Flyby alert!!!  OP is MIA and has never responded.  Respond at your own risk.