ASI6520 and ASI6522 - PCI Sound Cards


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.

ASI6522 and ASI6520 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.

  • 4 or 6 stereo streams of playback into 2 stereo outputs
  • 2 or 4 stereo streams of record from 2 stereo inputs
  • PCM, MPEG-L2 and MP3 formats with sample rates to 96kHz
  • MRX technology supports mixing of multiple formats and rates
  • TSX time scaling by up to +/-20%
  • Balanced stereo analog I/O with levels to +24dBu<
  • 24bit ADC and DAC with 110dB SNR and 0.0015% THD+N
  • AES/EBU I/O with sample rate converters on all inputs   (ASI6522 only)
  • SoundGuard transient voltage suppression on all I/O
  • Short length PCI card format (6.6 inches/168mm
  • Up to 4 cards in one system
  • Windows and Linux software drivers available
ASI652x Datasheet

Windows Combo Driver
Linux HPI and ALSA Drivers