Asus Xonar Essence STU Manual page 5

4. Op-amp pairing impression
Recommended OPamp pairing combinations
Brand Model name
NS LME49860
NS LME49720NA
NS LM4562NA
TI OPA2111
TI OPA2132
TI OPA2107
ADI OP275
ADI AD823
NJRC MUSE01
NJRC MUSE02
Sound Impression
The following table lists the sound impression brought by different combinations of
op-amp pairing.
DAC I/V Slot 1
TI – OPA2107
TI – OPA2107
NS – LME49720
NS – LM4562NA
NS – LM4562NA
NS – LME49720NA
ASUS Xonar Essence STU Opamp Swap Guide
DAC LPF Slot 2 Sound Impression
TI – OPA2132 Brighter vocal, slightly less bottom sound
NS – LME49860 Even brighter than the above combination, and more
detailed with less but tighter bottom sound
NS – LM4562NA Less warm than stock OP-amps, more extensive
detailed and dampened mid-range, Essence ST/STX
style
NS – LM4562NA Wider sound stage but less detailed than the above
combination
NJRC – MUSE02 Powerful, punchy sound with good sound stage; less
detailed present.
NJRC – MUSE02 Brighter, thinner sound and more detailed than the
above combination