Model Name: ASUS Xonar DX / XD / A (7.1-channel PCIe Sound Card)
Part Number: XONAR_DX/XD/A / 90-YAA060-1UAN00Z
Form Factor: Internal PCI Express x1 card (includes low-profile bracket)
Bus Interface: PCI Express x1 (compatible with x1/x4/x8/x16 PCIe slots)
Audio Channels: 7.1 channel surround output
Operating System Support (Legacy): Windows XP, Vista, 7 (official) — modern compatibility depends on driver availability.
Primary Audio Processor: ASUS AV100 High-Definition Sound Processor (supports up to 24-bit/192 kHz audio)
Digital-to-Analog Converters (DACs):
Front L/R: Cirrus-Logic CS4398 — 120 dB SNR, up to 192 kHz/24-bit
Other 6 Channels: Cirrus-Logic CS4362A — 114 dB SNR, up to 192 kHz/24-bit
Analog-to-Digital Converter (ADC):
Cirrus-Logic CS5361 — 114 dB SNR, up to 192 kHz/24-bit for line/mic input
Output Signal-to-Noise Ratio (A-Weighted):
Front output: 116 dB
Other channels: 112 dB
Input Signal-to-Noise Ratio (A-Weighted): 112 dB
Total Harmonic Distortion + Noise (THD+N):
Output (Front-out): 0.00056 % (−105 dB) at 1 kHz
Input (Line-in): 0.0004 % (−108 dB) at 1 kHz
Frequency Response: < 10 Hz to 48 kHz (−3 dB, 24-bit/96 kHz input)
Full-Scale Output/Input Voltage: 2 Vrms (5.65 Vp-p)
Playback & Recording:
44.1 kHz / 48 kHz / 96 kHz / 192 kHz
16-bit and 24-bit resolution
7.1-Channel Output Jacks: Standard 3.5 mm mini jacks for:
Front L/R
Side L/R
Center/Subwoofer
Rear L/R
Line-In / Mic-In: Shared 3.5 mm mini jack
Auxiliary Line-Level Input: 4-pin header for CD-IN/TV tuner, supports up to 192 kHz/24-bit with low latency
S/PDIF Optical Output: TOS-Link high-bandwidth optical transmitter shared with Line-In/Mic-In jack — supports up to 192 kHz/24-bit digital output
Dolby Digital Live: Real-time encoding of PC audio to Dolby Digital (AC-3) for external decoders/home theater units via S/PDIF
Dolby Virtual Speaker (virtual surround)
Dolby Headphone: Virtual surround via stereo headphones
Dolby Pro Logic IIx: 7.1 up-mixing from stereo/5.1 sources
GX2.5 Audio Engine: EAX/Gaming 3D audio enhancement & environmental effects
VocalFX Voice Processing: Includes VoiceEX for in-game voice spatialization and ChatEX for chat effects (Magic Voice pitch modulation)
Low-Profile & Standard Brackets: Included for use in desktop and HTPC cases
Typical Dimensions: Approximately ~167 mm × ~69 mm (L × H)
PCI Express x1 (or higher) slot on motherboard
Available 4-pin PSU power connector (some variants require additional power)
Windows drivers (official legacy support for XP/Vista/7; later OS may require community drivers or legacy compatibility)
DirectSound3D, EAX up to 5.0, OpenAL, ASIO 2.0 (driver/dedicated support varies)
DTS Connect and other surround virtualization standards supported via bundled Dolby tech