Dolby Home Theater technology and high quality gaming audio. The most innovative sound effects. Dolby Home Theater Technology. The Xonar D1 inherits the DX and D2X from the Dolby Home Theater functions for games and entertainment in general: Dolby Digital Live: Real time encoding of Dolby Digital 5.1 Surround Dolby Pro-Logic III: Turns a stereo or 5.1 signal into a 7.1 Surround. Dolby helmet: Provides a realistic 3D/7.1 environment (from 2 to 5.1) for any pair of headphones Virtual Dolby Speaker: Emula Surround 5.1 on a stereo speaker setup Supports latest DS3D GX 2.0 Gaming for Vista and XP In addition to EAX support and Direct Sound effects, the DS3D GX 2.0 also incorporates Dolby Home Theater technologies (Dolby Virtual Speaker, Dolby Headphone, Dolby Digital Live, Dolby PrologicIIX) that ensure an unforgettable audio experience. The innovative VocalFX adds more attraction and interactivity to your online game and chat. The innovative VocalFX is a voice processing technology that allows you to place your voice in a suitable gaming environment (VoiceEx) or emulate background scenes for online chat (ChatEx). It also allows you to change the tuning of your voice to conceal your identity. Audio 35 times clearer (119 dB SNR) than integrated audio solutions (85 dB SNR) The noise level of the Xonar D1 is only 1/35 (2.8%) of the derivative of integrated plate-based solutions. In addition, the Xonar D1 has a THD (Total Harmonic Distortion) of 1/32 (-105 dBs) compared to -75 dBs of plate-based solutions. Connect it to your VGA card (via S/PDIF port) and enjoy HDMI connection for video and audio. The S/PDIF output allows you to connect it to a VGA card - with S/PDIF support - and thus use the HDMI port on this card to enjoy premium entertainment content. Contents: - Xonar D1 PCI audio card, 7.1 channels - Driver CD (with RMAA V6.0.6 utilities). - Low profile bracket. - 1 x TOSLINK S/PDIF optical adapter - Quick guide - Driver CD (with RMAA V6.0.6 utilities). Required configuration. - A free PCI slot for the card - Microsoft® Windows® Vista(32/64bit)/XP(32/64bit)/MCE2005. - Intel® Pentium®4 1.4GHz or AMD Athlon 1400 CPU (or higher). - > 256 MB DRAM. - > 60 MB HDD space available for driver package installation. - CD-ROM drive (or DVD-ROM) for software installation - Quality headphones, analog speakers and a Dolby Digital or DTS set-top box, will allow you to take full advantage of the card potential. Other features: Audio quality: 64 bit Audio Output Channels: 7.1 Chipset: ASUS AV100 Audio A/D Converter: 16 bit/48 kHz. Line Input: Yes. Host interface: PCI Signal-to-Noise Ratio (SNR): 116 dB Microphone, jack input: yes. S/PDIF output port: Yes. Headphone outputs: 4 Windows operating system support: yes.