GX 2.5 for realistic 3D gaming audio effects Feel opponents sneaking behind you and hear voices echo in dungeons with the ASUS-exclusive GX 2.5 gaming audio engine, which allows up to 128 different sound effects at once for a realistic 3D audio experience. It also supports the latest version of EAX and restores surround gaming in Windows 7 with no additional software. DTS Connect technology for an immersive 7.1-channel surround experience Consisting of DTS Neo: PC and DTS Interactive technologies, DTS Connect brings the worlds most wanted hi-fi surround sound to your PC and turns it into a powerful multimedia center and game console. - Surrounded all the time - DTS Neo: PC Converts any stereo signal into 7.1 channels get the most out of your multi-channel speaker setup. - World's most wanted surround audio at your service - DTS Interactive Turns all sound into sensational 7.1 DTS Digital surround via S/PDIF output feed your AV receiver the best surround available. True 192KHz/24-bit PC hi-fi enjoyment Enjoy music file convertion at the highest quality with no sample rate downgrade. Detail Specifications Audio Performance Output Signal-to-Noise Ratio (A-Weighted) (Front-out) :107 dB Input Signal-to-Noise Ratio (A-Weighted) :100 dB Output THD+N at 1kHz (Front-out) : Input THD+N at 1kHz : Frequency Response (-3dB, 24bit/96KHz input) :10 Hz to 48 KHz Bus Compatibility PCI Express Chipset Audio Processor :ASUS AV66 High-Performance Sound Processor (Max. 192KHz/24bit) Sample Rate and Resolution Analog Playback Sample Rate and Resolution :44.1K/48K/96K/192KHz at 16bit/24bit Analog Recording Sample Rate and Resolution :44.1K/48K/96K/192KHz at 16bit/24bit S/PDIF Digital Output :44.1K/48K/96K/192KHz at 16bit/24bit I/O Ports Analog Output Jack : 4 x 3.5mm RCA jack Analog Input Jack : 1 x 3.5mm RCA jack 1 x S/PDIF Header 1 x Front-Panel Header Special Features DTS Technologies : DTS Interactive Encoder/DTS Neo:PC technologies Smart Volume Normalizer Xear 3D Virtual Speaker