Audio Performance

Output Signal-to-Noise Ratio (A-Weighted):
116dB for front-out, 112dB for other channels dB
Input Signal-to-Noise Ratio (A-Weighted):
112 dB
Output THD+N at 1kHz:
0.00056% (-105dB) for Front-out
Input THD+N at 1kHz:
0.0004% (-108dB) for Line-in
Frequency Response (-3dB, 24-bit/96kHz input):
<10Hz to 48KHz
Output/Input Full-Scale Voltage
2 Vrms (5.65 Vp-p)

Main Chipset

Audio Processor:
ASUS AV100 High-Definition Sound Processor (Max. 192KHz/24bit)
24-bit D-A Converter of Digital Sources:
Cirrus-Logic CS4398*1 for Front-Out (120dB SNR, Max. 192kHz/24bit), Cirrus-Logic CS4362A*1 for other 6 channels (114dB SNR, Max. 192kHz/24bit
24-bit A-D Converter for Analog Inputs:
Cirrus-Logic CS5361* 1 (114dB SNR, Max. 192kHz/24bit)

I/O Ports

Analog Output Jack:
44.1K/48K/96K/192KHz @ 16/24bit, Dolby Digital, DTS
Analog Input Jack:
3.50mm mini jack *1 (Shared by Line-In/Mic-In)
Other line-level analog input (for CD-IN/TV Tuner):
Supports 44.1K/48K/96K/192KHz @16/24bit with very low latency
Digital S/PDIF Output:
High-bandwidth TOS-Link optical transmitter (shared with Line-In/Mic-In jack) supports 192KHz/24bit

S/PDIF Header: Connecting to supported VGA cards with HDMI output

Driver Features

Operation System:
Windows Vista/XP(32/64bit)/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 IIx
Dolby Pro-Logic II is the well-known technology to process any native stereo or 5.1-channel audio into a 6.1- or 7.1- 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

Magic Voice™:
Xonar D1 provides 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
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

DS3D GX2.0:
DS3D GX 2.5 gaming sound effects and DirectSound 3D hardware enhanced functions on Windows Vista. (DirectX/DirectSound 3D compatible)

Bundled Software Utility

RightMark Audio Analyzer 6.0.6:
Easy but powerful software intended for testing the quality of audio equipments