ASUS Xonar Essence ST 24-bit 192KHz PCI Interface Audio Card

Specifications
Audio Performance
Output Signal-to-Noise Ratio (A-Weighted):

124dB for Front-out,117dB for Headphone-out (600ohms) dB

Input Signal-to-Noise Ratio (A-Weighted):

118 dB

Output THD+N at 1kHz:

0.0003% (-110dB) for Front-out, 0.001% (-100dB) for Headphone-out

Input THD+N at 1kHz:

0.0002% (-113dB) for Line-in

Frequency Response (-3dB, 24-bit/192kHz input):

lt;10Hz to 90KHz

Output/Input Full-Scale Voltage

2 Vrms (5.65 Vp-p)
Bus Compatibility
PCI:

PCI v2.2 or above bus compatible
Main Chipset
Audio Processor:

ASUS AV100 High-Definition Sound Processor (Max. 192KHz/24bit)

24-bit D-A Converter of Digital Sources:

Texas Instruments PCM1792A*1 for Front-Out (127dB SNR, Max. 192kHz/24bit)

24-bit A-D Converter for Analog Inputs:

Cirrus-Logic CS5381* 1 (120dB SNR, Max. 192kHz/24bit)

High Fidelity Headphone Amplifier:

Texas Instruments 6120A2*1 (120dB SNR, 100dB THD+N @ Vcc±12V, RL=600Ω, f=1kHz)
Sample Rate and Resolution
Analog Playback Sample Rate and Resolution:

44.1K/48K/96K/192KHz @ 16/24bit

Analog Recording Sample Rate and Resolution:

44.1K/48K/96K/192KHz @ 16/24bit

S/PDIF Digital Output:

4.1K/48K/96K/192KHz @ 16/24bit, Dolby Digital

ASIO 2.0 Driver Support:

Supports 44.1K/48K/96K/192KHz @16/24bit with very low latency
I/O Ports
Analog Output Jack:

RCA jack *2 (Front R / Front L), 6.30mm jack*1 (Headphone out)

Analog Input Jack:

6.30mm jack *1 (Shared by Line-In/Mic-In)

Other line-level analog input (for CD-IN/TV Tuner):

ux-In (4-pin header on the card)

Digital S/PDIF Output:

High-bandwidth Coaxial/TOS-Link combo port supports 192KHz/24bit

Front-Panel Header:

Shared by Headphone out / 2 channels out /

Microphone in

S/PDIF Header:

Connects to compatiable graphic cards for HDMI output
Driver Features
Operation System:

Windows 7/Vista/XP/MCE2005

Dolby® Technologies:

Dolby® Digital Live

Dolby Digital Live encodes any audio signal on PC in real-time to Dolby Digital (AC3) 5.1 surround sounds to your home theater environment through one single S/PDIF connection



Dolby® Headphone

Dolby Headphone technology allows users to listen to music, watch movies, or play games with the dramatic 5.1-channel surround or realistic 3D spacious effects through any set of stereo headphones.



Dolby® Virtual Speaker

Dolby Virtual Speaker technology simulates a highly realistic 5.1-speaker surround sound listening environment from as few as two speakers.



Dolby® Pro-Logic II

Dolby Pro-Logic II is the well-known technology to process any native stereo or 5.1-channel audio into up to 6.1 channel output, creating a seamless, natural surround soundfield.

Smart Volume Normalizer™:

Smart Volume Normalizer™

Normalizes the volume of all audio sources into a constant level and also enhances your 3D sound listening range and advantages in gaming

Xear 3D™ Virtual Speaker Shifter:

Virtual 7.1 speaker positioning

Karaoke Functions:

Music Key-Shifting and Microphone Echo effects like professional Karaoke machine

FlexBass™:

Professional Bass Management/Enhancement system

3D Sound Engines/APIs:

Vista: DirectSound3D® GX 2.5, DirectSound® HW, DirectSound SW, A3D®1.0, OpenAL generic modes, 128 3D sounds processing capability



XP: DirectSound2.5 SW, A3D®1.0, OpenAL generic modes, 128 3D sounds processing capability

VocalFX™:

the latest vocal effect technologies for gaming and VoIP, including: -VoiceEX: produces vivid environmental reverberation for your voice in EAX games -ChatEX: emulates different background environment effects when you chat online -Magic Voice: changes your voice pitch to different types (Monster/Cartoon…) for disguising your real voice or just for fun in online chatting
Accessories
1 x S/PDIF optical adaptors

1 x 6.3mm to 3.5mm stereo adapter
Size (Width x Height)
106.65 x 168.26mm