Pft, I spit on the OPA2134.
The idea is to make the amp sound better with Grados not worse.
(Slow, muddy, with a compressed sound stage and grainy treble is not better).
And the actual specs are:
2 BUF634 output buffers per signal channel, 1 on the ground channel (socketed)
4 Nichicon 1000uf 35v UPW power supply capacitors
Vishay/Dale RN55D 1% metal film resistors (matched to .1%)
Cardas CTFA RCA jacks
Neutrik 1/4" locking headphone jack
Alps "Blue Velvet" 50k potentiometer
2.5 mm DC power jack