User Manual

Xonar Essence STX

OP AMP socket pin description

Please refer to the photo above. A, B, C, they are the three sockets

for OP amps. Modifying OP A,B and C will change the tonal quality of

RCA outputs, while modifying OP A and B changes the tonal quality of

1/4” Headphone output.

Their pins description is as following. Pin 1 is at the left and bottom

corner. You can change OP amps that meet following requirements.

There are two OP amps in each 8 pin package.

PAGE 1
Xonar Essence STX OP AMP socket pin description Please refer to the photo above. A, B, C, they are the three sockets for OP amps. Modifying OP A,B and C will change the tonal quality of RCA outputs, while modifying OP A and B changes the tonal quality of 1/4” Headphone output. Their pins description is as following. Pin 1 is at the left and bottom corner. You can change OP amps that meet following requirements. There are two OP amps in each 8 pin package.
PAGE 2
A. Right channel OP socket----I/V converter Pin 1: OPA A output.--------------5.85 Vpp output Pin 2: OPA A negative input-----7.8mA input Pin 3: OPA A positive input------7.8mA input Pin 4: -12V Pin 5: OPA B positive input------7.8mA input Pin 6: OPA B negative input------7.8mA input Pin 7: OPA B output.---------------5.85 Vpp output Pin 8: +12V B. Left channel OP socket------I/V converter Pin 1: OPA A output.--------------5.85 Vpp output Pin 2: OPA A negative input-----7.