Audison Bit One.1 DSP Microprocessor


DSP Microprocessor

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Despite its compact size, the bit One is equipped with a powerful 266 MHz / 32 bit floating point DSP microprocessor, working in real time on all the functions of the most complete systems. Managed and configured by a simple and intuitive computer software, it is possible to make adjustments to improve the signal through each phase of its path; from input to output.

Eight input channels for four different signal typologies (amplified, pre-amplified, coaxial electric and TOSLINK optical digital) and six different sources managed through a remote control, making the bit One a unique interface suitable for any need.

Eight analog and/or digital output channels ensure a wide expandability for any audio system configuration.

Audio DSP and converters

  • 32-BIT floating point Analog Devices Sharc (Clock speed: 266MHz) Digital Signal Processing chip and Wolfson A/D D/A converters working in PCM at 48kHz with 24 Bit resolution.
  • Tuning functions can be heard in real time due to processing speed.

Audio Inputs

  • 8 independent high-level channels (with automatic summing capability) or 6 independent analog low-level channels;
  • 2 analog low-level stereo auxiliary inputs;
  • 1 optical digital input;
  • 1 electric coaxial digital input;
  • 1 high-level momentary audio interrupt input (with Mute IN) for use with mobile phone or navigation systems.

Audio Outputs

  • 8 independent low-level analog channels featuring adjustable level and 1 AD Link output (8 independent digital audio channels through a single CAT 5.S LAN cable for use with AD Link
    provided amplifiers).

Digital Control System

  • 1 USB /B (2.0) connector for PC connection;
  • 2 AC Link control bus connectors for DRC and AC Link amplifiers.


  • Guided procedure that, thanks to a wide range of set names, provides the ability to assign each component to the bit One connections and automatically coordinate their functioning.

Turn-on Controls

  • ART automatic remote turn on/off circuit;
  • Through the car ignition key with memory function;
  • Through the DRC;
  • Automatically through the hands-free phone kit.

In/Out Volume

  • Input sensitivity automatically adjusted for the main inputs (with supplied Test CD and DVD);
  • Manual input sensitivity adjustment for auxiliary inputs;
  • Independent level control for each output channel for system fine tuning (-40 ÷ 0 dB).

Dynamic Equalizer

  • System automatically self-adjusts through an equalization between low and high listening levels that can be set by the user and controlled by the DRC.

De-equalization and calibration

  • Automatic de-equalization of signal fed into the high-level inputs (with supplied Test CD or DVD) and levels calibration.


  • One 31-band graphic equalizer (1/3Oct.; ±12dB) for each one of the 4 auxiliary input;
  • One 31-band graphic equalizer (1/3 Oct.; ±12dB) for each one of the 8 output channels.

Crossover Filter

  • Filter typology: Selectable; Hi-pass, Lo-pass, Bandpass, Full Range;
  • Cut-off frequency: 70 steps available from 10 Hz to 20 kHz;
  • Cut-off slope: Selectable; 6 to 48 dB/Oct.;
  • Alignments: Selectable; Linkwitz or Butterworth;
  • Mute: Selectable for each output (On/Off);
  • Phase: Selectable for each output (0°/180°).

Signal channels reconstruction

  • It can reconstruct a stereo signal from a multi-channel signal. In addition it can reconstruct a centre channel and subwoofer channels from a stereo input alone.

Time Alignment

  • Guided procedure for the speaker distance data entry with an automated calculation of proper delay times for each channel for accurate time alignment set-up. System also provides for
    manual fine tuning of delay (0 ÷ 22 ms max).

Auto Restart

  • Automatic turn Off/On, if the DSP locks up.


  • Master Volume control, Subwoofer Volume control, Balance control, Fader control, Input selection, Memory selection, Dynamic Equalizer On/Off, Adjustable display brightness, Access to digital features of Audison TH amps if connected.


  • 4 presets separately managed and recalled by the DRC Remote Control.

Bit One software

  • Windows (Win 2000, XP, Vista, 7) based software with “Standard” and “Expert” operating modes;
  • Screen resolution: 1024 x 768 px min.