Check the listing for details. ASI 6520 Pro Audio Card. Condition: Seller refurbished. Listed at 300.00 USD. The ASI6522 and ASI6520 are professional PCI sound cards designed for use in radio broadcast automation. Providing 4 or 6 play streams that are mixed to 2 balanced stereo outputs and 2 or 4 record streams fed from 2 balanced stereo inputs, the ASI6522 and ASI6520 feature AudioScience’s unique “anything to anywhere” mixing and routing. The ASI6522 provides both balanced analog and AES/EBU inputs and outputs. The ASI6520 has analog I/O only. The maximum analog input and output level is +24dBu. A choice of uncompressed PCM, MPEG layer 2 and MP3 is available for both recording and playback. All compression is handled by an on-board floating point DSP, allowing the host computer to focus on other tasks. DSP based functionality includes MRX™ multi-rate mixing technology, which allows streams of different, sample-rates and formats to be mixed digitally. TSX™ time scaling allows compression/expansion of any or all playback streams in real time with no change in pitch. FEATURES  4 or 6 stereo streams of playback into 2 stereo outputs  2 or 4 stereo streams of record from 2 stereo inputs  Supported formats: PCM, MPEG layer 2 and MP3 with sample rates to 96kHz  MRX technology supports digital mixing of multiple stream formats and sample rates  TSX time scaling allows compression/expansion of play streams by up to +/-20% with no pitch shift  Balanced stereo analog inputs and outputs with levels to +24dBu  24bit ADC and DAC with 110dB SNR and 0.0015% THD+N  AES/EBU inputs and outputs with sample rate converters on all inputs (ASI6522 only)  Dedicated AES/EBU and Word clock Sync input (ASI6522 only)  SoundGuard™ transient voltage suppression on all I/O  Short length PCI card format (6.5 inches/165mm)  Up to 4 cards in one system  Windows 8, 7, Server 2008/2012, and Linux drivers available