ASUS Op-Amp User Manual
E7402
Op-Amp Swap Guide
Hi-Fi USB DAC (Digital-to-Analog Converter)
Essence Series & Xense
First Edition
May 2012
Copyright © 2012 ASUSTeK Computer Inc.
All Rights Reserved
English
4
4
4
1
1
1
1
2
2
3B
3B
3A
An operational amplier (Op-Amp) plays an important role in audio performance
and tonal style by creating distinct listening experiences. Catering to the needs of
audiophiles, Essence series and Xonar Xense streamline Op-Amp modications
with easily-swappable Op-Amp sockets.
1. Swap Guide
1.1 Essence One
Change all the Op-Amps of the same types in the same slot. For example, if you
need to change DAC I/V (slot 1), you would need to change all the Op-Amps of
the same types in all slot 1. If you need to change DAC buffer (slot 2), you need
to change the Op-Amps of the same types in all slot 2.
1. Serves as I/V (current to voltage convertor) that turns current from DAC
into voltage for output purpose. Changing this will affect all outputs
(including Headphone output, RCA output and XLR output).
2. Serves as Low Pass Filter that lters background noises. Changing this
will affect all outputs (including Headphone output, RCA output and XLR
output).
3A. Serves as buffer that enhances the output signal for the speaker.
Changing this will affect the RCA output.
3B. Serves as buffer that enhances the output signal for the speaker.
Changing this will affect the XLR output
4. Serves as buffer that enhances the output signal for the headphone.
2
Changing this will affect the headphone output.
ASUS Op-Amp Swap Guide
All outputs (Headphone output, RCA
1
1
2
output, XLR output)
1
2
3A
3B
4
√
√
Headphone
output
√
1.2 Essence Series and Xonar Xense
Before you start swapping, ensure that you have removed the EMI shield
and unplugged the power cord that connects to the Xonar Xense or Essence
ST/STX.
RCA output XLR output
√
√
English
Xonar Essence STX
ASUS Op-Amp Swap Guide
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