13-CHANNELS HI-RESOLUTION DIGITAL SIGNAL PROCESSOR
Thanks to the Analog Devices DSP (ADSP-21489), 32 bit floating-point Sharc series (450 MHz clock), bit One HD makes the most of Hi-Res audio files achieving studio master quality in your car. bit One HD is the only processor able to develop an Audison Full DA HD chain, providing pure digital signal tranfer: the digital audio signal comes through one of the two optical digital inputs (TOSLINK up to 24 bit/192 kHz), is processed by the DSP at 24 bit/96 kHz and is sent to Audison amplifiers through two AD link port, preserving all the information of the Hi-Res audio file reproduced.
A dedicated software release enables the user to process up to 9 digital channels with crossover FIR filters.Through this type of sound processing, much more demanding in terms of calculation resources, a leading-edge in-car listening experience is achieved.
Three equalizers based on two different types of digital filters (FIR and IIR) manage the frequency response: 5 poles input equalization (MASTER and AUX) FIR type, to flatten the curve based on the input selected; IIR 11 poles output equalizer, to adapt the frequency response in the car compartment; 5 poles main equalization, FIR type, to “shape” the sound of the entire system according to the user’s personal music preferences.
When bit One HD is connected to an OEM head unit, a guided configuration routine automatically synchronizes the input audio channels, which are often time-delayed from the OEM source or amplifier, prior to the signals summing.
A De-equalization of the OEM system frequency response is then performed, featuring linear-phase FIR filters, to obtain an unparalleled reconstruction of the original signal without altering the phase response.
The RVA (Remote Volume Aux) function allow to select an auxiliary source (like the Audison bit Play HD) and adjust its volume via the OEM Head Unit.
The system setup is graphically managed and all the tuning features can be accessed intuitively, according to specific criteria required by the car audio industry.
bit One HD features 8 memories for the pre-sets of the Windows-based (10, 8, 7 edition) PC software.
Thirteen analog and/or digital output channels ensure vast expandability for any audio system configuration.
Connecting the bit One HD to the Audison bit Tune through an automatic procedure, all the processor’s basic audio parameters can be optimized (time alignment, equalization and output levels) ensuring an excellent acoustic result.
- DRC MP – Digital Remote Control Multimedia Play INCLUDEDThe 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 'Navy Command' function if the system features an Audison bit Play HD with video output connected to a monitor.
- OP 1.5 • TOSLINK Optical Cable
Optical cable ending with TOSLINK connectors for S/PDIF digital audio signals. Cable length: 1,5 m / 59,05”.
- OP 4.5 • TOSLINK Optical Cable
Optical cable ending with TOSLINK connectors for S/PDIF digital audio signals. Cable length: 4,5 m/177,16”
- STR • TOSLINK Optical Cable
Male-Female Toslink adapter with rotatable head. The 90° angleallows to save space.
- STA • F/F Socket TOSLINK adapter
Optical adapter to extend optical cables featuring TOSLINK connectors.
- ECK DRC
DRC Cable Extension kit for installations on especially long vehicles. Total length of the supplied cable with the extension is equal to 6,5 m / 225,90".
- POWER SUPPLY :
Voltage 11÷15 VDC
Operating power supply voltage 7.5 ÷ 14.4VDC
Idling current 0.75 A
Switched off without DRC MP 2 mA
Switched off with DRC MP 5 mA
Remote IN voltage 6.5 ÷ 15 VDC (1mA)
Remote OUT voltage 10 ÷ 15 VDC (130 mA)
ART (Automatic Remote Turn ON) 4÷7 VDC
Fuse 2 A
- SIGNAL STAGE :
Distortion – THD @ 1 kHz, 1 VRMS Output 0.004 %
Bandwidth @ -3 dB 4.5 Hz ÷ 32 kHz
S/N ratio @ A weighted, 4 V Output , 2 V MASTER input 100 dBA
S/N ratio @ A weighted, 4 V Output , 2 V AUX input 98 dBA
S/N ratio @ A weighted, 4 V Output , OPTICAL IN1/IN2 input 110 dBA
Channel Separation @ 1 kHz 77 dBA
Input sensitivity PRE / MASTER 1.3 ÷ 9 VRMS
Input sensitivity Speaker / Master 3 ÷ 22 VRMS
Input sensitivity AUX Master 0.3 ÷ 5 VRMS
Input impedance Pre In / Speaker In / AUX 15 kΩ
Max Output Level (RMS) @ 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
Digital AD Link 1 Ch1÷Ch8; FIR firmware Ch1÷Ch8
Digital AD Link 2 Ch9÷Ch13; FIR firmware Ch9 only
- CONNECTION :
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
- CROSSOVER :
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 mode (alternative firmware version) @ 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48 dB
Crossover Frequency 70 steps @ 10 ÷ 20k Hz
Phase control 0° / 180°
- EQUALIZER (20 ÷ 20K Hz) :
High Level Inputs (Speaker In) Automatic De-Equalization and Delay compensation
AUX Input Parametric Equalizer: ±12 dB; 5 poles FIR type
OPTICAL IN1/IN 2 Inputs Parametric Equalizer: ±12 dB; 5 poles FIR type
N.13 Parametric Equalizers: ±12 dB; 11 poles IIR type
N.9 Parametric Equalizers: ±12 dB; 5 poles FIR type (alternative FIR firmware release)
MAIN EQ Parametric Equalizer: ±12 dB;5 poles FIR type
Dynamic Equalization Self-adjusting System between low and high listening levels
Bass Boost Adjustable parametric pole (±12 dB; 10 ÷ 500 Hz)
- 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
Software/PC requirements 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)
- SIZE :
W (Width) x H (Height) x D (Depth) mm/inch
148 x 43.6 x 233 / 5.82” x 1. 7” x 9.17”
Weight kg/lb 1.775 / 3.9