Asus XONAR ESSENCE - Sound Card - 192 kHz Bedienungsanleitung

Third Edition

Oct. 2012

Xonar Essence One

Hi-Fi USB DAC (Digital-to-Analog Converter)

E7801

Opamp Swap Guide

2ASUS Xonar Essence One Opamp Swap Guide

English

1. Disassembly

1. Loosen the four screws in the front panel and the two screws in the rear panel

with a screwdriver.

Xonar Essence One

HEADPHONE

VOLUME

BIT PERFECT

192

88.2

44.1

176.4

_+_+

MUTEINPUT

USB

TOS

COA

UPSAMPLINGPOWER

UNBALANCED

OUTPUT

BALANCED OUTPUT DIGITAL INPUT

USBLRR

TOSLINK

COAXIAL

VOLTAGE SELECTOR AC IN

230

Front Panel

Rear Panel

2. Push the power connector on the rear panel to remove the machine bed

(including the PCB board and power module) from the machine housing.

UNBALANCED

OUTPUT

BALANCED OUTPUT DIGITAL INPUT

USBLRR

TOSLINK

COAXIAL

VOLTAGE SELECTOR AC IN

230

2. Swap Guide

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.

ASUS Xonar Essence One Opamp Swap Guide

English

All outputs (Headphone output, RCA

output, XLR output)

Headphone

output

RCA output XLR output

1√

2√

3A √

3B √

4√

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.

Changing this will affect the headphone output.

Output

Opamp

4ASUS Xonar Essence One Opamp Swap Guide

English

Recommended OPamp List

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

DAC I/V Slot 1 DAC buffer Slot 2 Sound Impression

TI – OPA2107 TI – OPA2132 Brighter vocal, slightly less bottom sound

TI – OPA2107 NS – LME49860 Even brighter than the above combination, and more

detailed with less but tighter bottom sound

NS – LME49720 NS – LM4562NA LesswarmthanstockOP-amps,moreextensive

detailed and dampened mid-range, Essence ST/STX

style

NS – LM4562NA NS – LM4562NA Wider sound stage but less detailed than the above

combination

NS – LM4562NA NJRC – MUSE02 Powerful, punchy sound with good sound stage; less

detailed present.

NS – LME49720NA NJRC – MUSE02 Brighter, thinner sound and more detailed than the

above combination

The following table lists the sound impression brought by different combinations of

op-amp pairing.

ASUS Xonar Essence One Opamp Swap Guide

English

Australia statement notice

From 1 January 2012 updated warranties apply to all ASUS products, consistent

with the Australian Consumer Law. For the latest product warranty details please

visit http://support.asus.com. Our goods come with guarantees that cannot be

excluded under the Australian Consumer Law. You are entitled to a replacement or

refund for a major failure and compensation for any other reasonably foreseeable

loss or damage. You are also entitled to have the goods repaired or replaced if the

goods fail to be of acceptable quality and the failure does not amount to a major

failure.

If you require assistance please call ASUS Customer Service 1300 2787 88 or visit

us at http://support.asus.com

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