Asus Essence STX II, User Manual

Page: 6 / 48

6 Chapter 1: Product introduction
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Specifications summary
ITEM DESCRIPTION
Audio Performance
Output Signal-to-Noise Ratio
(AWeighted)
14dB for Front-out
10dB for Headphone-out at 600ohms
Input Signal-to-Noise Ratio
(AWeighted)
118dB
Output Total Harmonic
Dist Noise
at 1kHz (-dB) :
0.000% (-110dB) for Front-out
0.001% (-100dB) for Headphone-out
Input Total Harmonic Distortion
+ Noise at 1kHz (-dB)
0.000% (-11dB) for Line-In
Frequency Response (-dB, 4-
bit/96kHz format)
10Hz to 90KHz
Output/Input Full-Scale Voltage Vrms (Line Out)
7 Vrms (Headphone Out)
Headphone Impedance Optimized for ~600ohm
Main Chipset
Audio Processor ASUS AV100 High Definition Sound Processor
(Maximum 19KHz/4bit)
4-bit D-A Converter of Digital
Sources
Texas Instruments PCM179A*1 for Front Out
(17dB SNR, 19kHz/4bit)
High Fidelity Headphone
Amplifier
Texas Instruments 610A*1 (10dB SNR, 100dB
THD+N @ Vcc+- 1V, R
L
= 600ohms, f=1kHz)
4-bit A-D Converter for Analog
Inputs
Cirrus-Logic CS581*1 (10dB SNR, Maximum
19kHz/4bit)
Sample Rate and Resolution
Analog Playback Sample Rate
and Resolution
44.1K/48K/96K/19kHz @ 16/4bit
Analog Recording Sample Rate
and Resolution
44.1K/48K/96K/19kHz @ 16/4bit
SPDIF Digital Output 44.1K/48K/96K/19kHz @ 16/4bit,
Dolby Digital
continued on the next page)