Audio Science ASI5811 With Cable


This entry level audio card is perfect for web broadcasters, production studios and most small broadcasters. There are four playback streams and one record stream with a digital and analog input and output too. The ASI5811 also offers a dedicated microphone input with Limiter / Compressor and is a perfect card to add to your existing automation computer to add voice-tracking capability.



The ASI5811 is a professional PCI audio adapter designed for use in radio broadcast production. The adapter offer two stereo record streams from either a balanced analog input or AES/EBU digital input and four stereo play streams mixed to both a balanced analog output and an AES/EBU digital output. Also included is a microphone input, with low noise pre-amp and a 48V phantom supply.

The ASI5811 is a PCI Express (PCIe) adapter. Additionally, the ASI5811 makes available two opto inputs and two relay outputs via a second bracket attached to the ASI5811 using a 10-pin ribbon cable. (supported in Simian 2.1.1 and WaveCart 5.0.0 and above)

Additional information

Weight 3 lbs


  • Four stereo streams of PCM playback
  • Two stereo streams of PCM record
  • Balanced stereo analog input and output
  • PCIe interface
  • Two opto inputs and two relay outputs via a second bracket
  • AES/EBU or S/PDIF digital input and output (software selectable)
  • Low noise microphone input with 48V phantom supply and DSP based compressor/limiter and 3 band equalizer
  • 24bit analog-to-digital and digital-to-analog converters – 100dB SNR and 0.0025% THD+N
  • 11 to 96kHz sample rates
  • MRX™ multi rate mixing technology supports digital mixing of multiple sample rates
  • SoundGuard™ transient voltage suppression protects against lightning and other high voltage surges on all I/O
  • Up to 8 cards in one system
  • Windows XP, Server 2003, Server 2008, 7 and Linux software drivers available

Block Diagram

Technical Data

 ASI5811 Data Sheet