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.
English An operational amplifier (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 modifications 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.
1 √ 2 √ Headphone output XLR output √ 3A √ 3B √ 4 1.2 RCA output English All outputs (Headphone output, RCA output, XLR output) 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.
English 1 2 1 Xonar Essence ST 1 2 Xonar Xense 1. 2. Serves as I/V (current to voltage convertor) that turns current from DAC into voltage for output purpose. Changing this will affect the tonal quality for all outputs (including both RCA and 1/4” Headphone output). Serves as buffer that enhances output signal for speaker. Changing this will affect the tonal quality of RCA outputs.
Instructions 2.1 Place down an Op-Amp correctly English 2. To avoid reversion, make sure that Pin 1 is at the lower left corner when the bracket is on your left-hand side. Pick up Op-Amp with an IC clamp vertically upward to avoid bending. 2.2 8 7 6 5 1 2 3 4 Disassembly Essence One 1. Loosen the four screws in the front panel and the two screws in the rear panel with a screwdriver. Front Panel BIT PERFECT Xonar Essence One 192 176.4 COA 96 TOS 88.
Essence Series and Xonar Xense English 1. Loosen the screws with a screwdriver. 2. Remove the EMI shield. 2.3 Swapping Op-Amps 1. Use an IC clamp to clasp an Op-Amp and remove it vertically upwards. 2. Replace it with a new Op-Amp from the Op-Amp kit. 3.
Recommended Op-Amp List Brand Model name NS LME49860 NS LME49720NA NS LM4562NA TI OPA2111 TI OPA2132 TI OPA2107 ADI OP275 ADI AD823 NJRC MUSE01 NJRC MUSE02 English 4.
