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bit One HD Virtuoso DSP | 12 input channels | 13 output channels | 24 bit / 96 kHz floating point processing

Just as the virtuous performer holds the absolute mastery of the instrument and the technique connected to it, the bit One HD Virtuoso features unique skills dedicated to the most ambitious OEM Integration projects and excels in the uncompromising Hi-End systems. This was made possible thanks to innovative functions born with the new software/firmware development and the upgrade of some key components in the audio signal path, which are crucial to reach new heights of listening pleasure. bit One HD Virtuoso allows the creation of an Audison Full DA HD (Full Digital Audio HD) system where the audio signal is transmitted digitally from the Hi-Res audio player to the Audison amplifiers equipped with AC / AD link inputs, preserving every nuance with maximum purity.

Amplifier Tech Data

Nominal power supply voltage / Fuse 11 ÷ 15 VDC
Channels 13
Sample Rate 24 bit / 96 kHz
Hi Level Inputs 12
Low Level Inputs 12
Digital Inputs 2
Processing Method Floating point
Idling current 0.75 A
Switched off without DRC MP 2 mA
Switched off with DRC MP 5 mA
Remote IN 4 ÷ 15 VDC (1 mA)
Remote OUT 4 ÷ 15 VDC (130 mA)

Signal Stage

Distortion - THD @ 1 kHz, 1 VRMS Output 0.004 %
Bandwidth @ -3 dB 10 Hz ÷ 44 kHz
S/N ratio @ A weighted, 4 V Output, 2 V MASTER input 105 dBA
S/N ratio @ A weighted, 4 V Output, 2 V AUX input 110 dBA
S/N ratio @ A weighted, 4 V Output, OPTICAL IN1/IN2 input 104 dBA
Channel Separation @ 1 kHz 80 dBA
Input sensitivity PRE IN / Master 1.3 ÷ 9 VRMS
Input sensitivity Speaker IN / Master 5 ÷ 32 VRMS
Input sensitivity AUX 0.7 ÷ 5 VRMS
Input impedance Pre In 15 kΩ
Input impedance Speaker In / AUX 5 Ω
Max Output Level 0.1% THD 4 V

Input Stage

Low level (Pre) Ch1 ÷ Ch6; AUX L/R
High Level (Speaker In) Ch1 ÷ Ch12
Digital 2 x Optical S/PDIF; Max 192 kHz/24 bit

Output Stage

Low level (Pre) Ch1 ÷ Ch13 (IIR mode); Ch1 ÷ Ch 9 (FIR mode)
Digital AD Link 1 Ch1 ÷ Ch8 (IIR / FIR mode)
Digital AD Link 2 Ch9 ÷ Ch13 (IIR mode); Ch9 only (FIR mode)


From / To Personal Computer 1 x micro USB
To Audison Amplifiers 2 x (AC Link / AD LINK) control bus
To Audison DRC MP 1 x AC Link


Filter type Full / High-Pass / Low-Pass / Band-Pass
Filter mode and slope Linkwitz @ 12 / 24 / 36 / 48 dB Butterworth @ 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48 dB Bessel @ 6 / 12 / 18 / 24 / 30 / 36 dB FIR @ 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48 dB
Crossover Frequency Lo-Pass: 0 ÷ 44k Hz (1 Hz step) Hi-Pass: 0 ÷ 20k Hz (1 Hz step)
Phase control 0° / 180°

Time Alignment

Distance 1.4 ÷ 756 cm / 0.6 ÷ 297.7 inches
Delay 0 ÷ 22 ms
Step 0.04 ms, 1.4 cm, 0.6 inch

General Requirements

PC connections USB 1.1 / 2.0 / 3.0 Compatible
PC OS Microsoft Windows (32/64 bit): XP, Vista, Windows 7, Windows 8, Windows 10
Video Resolution with screen resize min. 800 x 600
Ambient operating temperature range 0 °C to 55 °C (32°F to 131°F)


Box Content

The new Audison DRC MP (Digital Remote Control Multimedia Play) is compatible with all the Audison electronics featuring AC Link bus. Its slim profile along with the holder supplied with it eases the installation in the best position inside the car. Thanks to the new Joystick, Rubber Touch finished for best control of the movements along the four direction axes, the DRC Settings menu can be adjusted and navigation is also possible through the Navi Comm and function if the system features an Audison bit Play HD with video output connected to a monitor. Designed for the discerning audiophile, the DRC MP CAN integrates cutting-edge technology with user-friendly features to deliver an unmatched audio control experience in your vehicle. Enhance your drive with the precision of Audison.
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The C2O interface converts the signals coming from the coaxial digital input and from the analog AUX-IN into a TOSLINK optical digital output signal (up to 24 bit/192kHz). The conversion allows the integration of the new Hi-Res portable devices equipped with coaxial digital output (75 ohm) and smartphones with analog output on 3.5 mm mini Jack (also 4 poles) with Audison processors featuring an optical digital input compatible with the resolution of the signal sent to the C20. Thanks to its extreme compactness, the C20 can be installed in a hidden position on the dashboard, drastically reducing the length of the cabling between the portable player and the receiving device.
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It prevents the processor from shutting down when turning on vehicles featuring the start & stop system. When starting the engine, the vehicle battery voltage might decrease below 8 Volts value. If a signal processor (bit One, bit Ten) is installed in your system, especially with vehicles featuring the start & stop system, low supply voltage values might make the processor shut down. In order to avoid waiting for the processor to complete its turn-on cycle again, you can install the ES3 by connecting it in series to the processor power supply cables.
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bit DMI
bit DMI
bit DMI is a digital interface for MOST systems, providing the ability to connect the Audison bit processors and the Audison amplifiers, equipped with digital input, to OEM multimedia systems in cars featuring the MOST technology based on optical fibre. Thanks to the digital connection, the signal can be transmitted without loss of quality, keeping the audio controls built in the OEM head unit “ such as volume, balance and tone controls as well as the hands-free kit, navigation system and parking sensors alerts unaltered.
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bit Tune
bit Tune
The Audison bit Tune is a revolutionary system of automatic calibration for Audison bit processors developed with bit Drive technology. Bit Tune also includes a multitude of additional features for electro-acoustic verification and analysis of any car audio system.The Audison team s goal in developing the bit Tune was to speed up the setting of basic parameters for the calibration of the bit processors (time alignment, equalization, levels, etc.), ensuring an excellent level of acoustic performance. This phase also includes the diagnosis of comm on errors (channel inversion/phase, no signal on one channel/cable, etc.) to set the specialist free from his routine work and allow him to focus on the art of fine-tuning. Only personal interpretation and experience can achieve what a machine could never do: create Your Sound!
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Stereo passive mixer (unpowered) featuring 4 input channels and 2 output channels, designed for active OEM multi-way systems where each speaker is powered by one specific amplified channel. SPM4 mixes audio through 4 audio transformers specifically developed to achieve very low distortion and highly linear acoustic response. SPM4 provides the ability to mix the midrange/woofer and tweeter channels coming from the amplifier and supply one single mid-high channel. The Ch1(L/R) channels feature two inputs, one features an inverting input compared to Ch2 (L/R) channels; the mixing process often gives better results when one of the two channels undergoes a 180° dephasing. SPM4 is especially recomm ended to extend the number of inputs of the Audison digital processors or amplifiers with built-in DSP because they feature a De-equalizer (De-Eq). In that case, any possible non-linear acoustic emissions due to the mixing of the pre-existing filtered channels are duly compensated.
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Male-Female Toslink adapter with rotating head. 90° angle shape to save space.
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It is a kit composed of a cable and an adapter allowing a 2 m / 78.74 in. Additional extension of the cable supplied with the DRC. This extension is required for installations on especially long vehicles such as SUV. Total length of the supplied cable with the extension is equal to 6,5 m / 225.90 in.
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Full DA HD

Pure digital signal transfer with a resolution up to 24 bit / 96 kHz

Hi-Res audio

According to the definition of HiRes audio provided by JAS (Japan Audio Society – jas-audio.or.jp), bit One HD Virtuoso meets 24 bit / 96 kHz native processing requirement.


Analog Device SHARC™ series chip with floating point precision, to reach the highest audio quality.


A dedicated firmware release enables the user to process up to 9 digital channels with crossover FIR filters. This sound processing mode, much more demanding in terms of calculation resources, ensures a leadingedge in-car listening experience.

RVA (Remote Volume Aux)

This exclusive technology provides the ability to select an auxiliary source (I.e.: a HI-Res audio player or auxiliary wireless interface connected by digital inputs) and adjust its volume via the OEM Head Unit, offering full support to the management of the car priority signals such as parking sensor alerts, GPS messages, phone and vocal commands whilst music is played through the auxiliary source.

USS technology

USS technology allows bit processors to work with headunits featuring the “speaker load detection” circuit


Auto tuning by Audison bit Tune and communication with bit Drive portal.


De-equalization function to “flatten” any equalization applied by default by OEM sources.


Input delay compensation of time-delayed factory outputs prior to signal summing.


Compensation of the overall system phase to recreate the original signal, even in case of OEM sound enhancement algorithms.


High level inputs polarity check and automatic correction in case of inversion.

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