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Top » Catalog » Car Audio & Cinema » Car Audio » Processors » Audison » » Audison bit one

Signal Interface Processor

A revolucionaly technology making the acoustic domain in any car for turning any ordinary system into one with very high-level performance.


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 to 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.

One 31-band graphic equalizer (1/3Oct.: +/-12dB) for each one of the 4 auxiliary input
One 31-band graphic equalizer (1/3Oct.: +/-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 10Hz to 20kHz
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:
Microsoft Windows (Win 2000, XP, Vista) based software with ''Standard'' and ''Expert''
operating modes.


Power Supply:
Voltage: 11 - 15 VDC
Idling current: 0.45 A
Switched off without DRC: less than 0.5 mA
Switched off with DRC: less than 1.8 mA

Remote IN voltage: 7 - 15 VDC (1.3 mA)
Remote OUT voltage : 12 VDC (130 mA)

Distortion THD @ 1kHz, 1V RMS Output: 0.002%
Bandwidth:4.5 - 21 kHz
S/N Ratio @ A weighted: 102 dBA
Channel Separation (@1 kHz): 77 dB
Input sensitivity (Low Level): 0.3 - 5 V RMS
Input sensitivity (High Level): 1.2 - 20 V RMS
Max Output Levels: 4V RMS
Input impedance (Low Level): 20 kΩ
Input impedance (High Level): 5 kΩ

Low Level (Pre In): Ch1-Ch6,AUX1L/R,AUX2L/R
High Level (Speakers In): Ch1-Ch8, Phone In Coaxial and Optical: (S/PDIFMax48 kHz/24bit, PCM).
Outputs: Analog Pre Out: Ch1-Ch8
Digital Out: 48kHz-24 bit AD Link: Ch1-Ch8


12/24/36/48dB Linkwitz
6/12/18/24/30/36/42/48dB Butterworth


31 Band, ISO 1/3 Oct, 20 Hz - 20 kHz

Time Alignment

0 - 22 ms in 0,02 ms steps (748 cm/294.5 inch)


WxHxD (mm/inches):
225 x 32,3 x 150 / 8.85'' x 1.27'' x 5.90''
1,345 / 2.965


This product was added/updated to our catalog on Saturday 17 October, 2009.