www..eu PRELIMINARY Signal Interface Processor ADVANCED MANUAL is a part of elettromedia - 62018 Potenza Picena (MC) Italy - www.elettromedia.it
Product Description Bit One is a signal digital processor essential to maximize the acoustic performances of your Car Audio system. It s made with a 32 bit DSP processor and 24 bit AD and DA converters. Its peculiarity is that it allows the system de-equalization of car factory systems with integrated audio processor, to evolve and improve any car audio system. It has 10 PRE Amp Level signal inputs, 8 Speaker Level signal inputs, optical and electrical S/PDIF digital input and PHONE IN input for the use with cellular phones handsfree kit. It provides 8 outputs both at preamplifi ed and digital level. Each channel has 32 bands equalizer, an electronic crossover and a digital delay. To adjust the several regulations a connection with a PC is necessary. Packaging Contents - Bit One - Signal interface processor - Printed Quick Start Guide - 5.0 m AC Link (RJ-12) cable - 5.0 m AD Link (RJ-45) cable - 3.0 m USB cable - N. 4 fixing screws DRC Digital Remote Control - DRC control panel - 4.5 m DRC / AC Link cable - N. 2 fixing brackets - CD ROM with: Bit One software USB-ACNet drivers This Advanced Manual (.pdf) Test tracks Warning: A PC with Windows XP is necessary to install the software and to perform the Bit One. 2
Installation External size Fixing size How to fi x 3
Description of Input / Output connection panels INPUT SIGNALS 1 PRE IN (low level inputs) Ch1 - Ch2 - Ch3 - Ch4 - Ch5 - Ch6 - AUX1 - AUX2 Connect the RCA cables coming from the analog signal source. 2 DIGITAL IN (digital inputs) Optical - Coaxial (S/PDIF standard) Connect the specifi c cables coming from the digital signal source. 3 SPEAKER IN (high level inputs) Ch1 - Ch2 - Ch3 - Ch4 - Ch5 - Ch6 - Ch7 - Ch8 Phone Connect the specifi c cables coming from the used sources. 3 negative pole (ground) positive pole OUTPUT SIGNALS 4 PRE OUT (low level analog signal) Ch1 - Ch2 - Ch3 - Ch4 - Ch5 - Ch6 - Ch7 - Ch8 5 AD Link - OUT (digital signal) S/PDIF digital output (Ch1 Ch8) for amplifi ers provided with appropriate AD Link input. DRC AMPS 1 - AC Link - 2 IN/OUT REMOTE CONTROLS 6 AC Link 1-2 (REMOTE CONTROLS) DRC: Input for the processor function s remote control and for the devices connected to AMPS. AMPS: Control bus to adjust the functions of the amplifi ers provided with AC Link connection, through DRC or PC (with ACNet software) connected to the processor. DRC AMPS 1 - AC Link - 2 7 REMOTE IN-OUT IN: turn on the processor: connect to source Rem Out lead. OUT: turn on other devices of the system: connect to other devices Rem In lead. 7 8 9 10 8 REMOTE IN - IGNITION SWITCH MEM: remember the state at shutdown - optional ON - OFF: power on - optional 9 POWER (power connection) - 12V + 10 USB PC connection with Bit One software to manage all aspects of the processor. 4
Connections POWER SUPPLY and REMOTE IN connection WARNING: OPTIONAL controls: Use turn on control 1 or turn on control 2. REMOTE ON/OFF (IGNITION SWITCH) 1. Ignition switch Remote on/off control. 2. Ignition switch Remote on/off command with memory: recalls how it has been shut off; if the processor was turned off by DRC unit (optional) you can turn it on by proper DRC control. If the processor was turned off by ignition switch, you can turn it on with the ON operation of the ignition switch. WIRES FOR CONNECTION TO THE PROCESSOR L: 7 mm (5/16 ) MAX: 16 AWG PERSONAL COMPUTER and DIGITAL REMOTE CONTROL connection DRC IN TO AC Link PROVIDED AMPLIFIER 5
Connection: INPUT SIGNALS PRE IN - STEREO PRE IN - AUDIO CAR THEATRE PRE IN - AUX 1 PRE IN - AUX 2 DIGITAL OPTICAL DIGITAL COAXIAL 6
High level STEREO Front + Rear High level MULTICHANNEL Handsfree TELEPHONE kit connection Original amplified source 7
DRC AMPS 1 - AC Link - 2 ADVANCED MANUAL / Bit One Connection: OUTPUT SIGNALS Output on TH amplifi er system (AD Link + AC Link) TH amplifier TH amplifier TH amplifier Output on non-th amplifi er system (PRE) DRC AMPS 1 - AC Link - 2 8
SOFTWARE To regulate Bit One functions, connect the PC through the USB connection. bit To start the software, click on the icon: one bit one.exe On the starting screen there is the choice between OFFLINE (Bit One not connected) or TARGET (Bit One connected) mode. After the selection of the mode, press ENTER. OFFLINE mode (Bit One processor not connected to the PC) In OFFLINE mode it s possible to use the software without connecting the Bit One to the PC, just to make oneself familiar with the different processor functions. See section: MAIN PAGE. Select MENU I/O Configuration Wizard to change inputs/outputs selections (n.4 of TARGET mode). TARGET mode (Bit One processor connected to the PC) Make sure that the Bit One is connected to the PC through the provided USB cable. Before activating TARGET mode, connect power supply to Bit One and switch it on by REMOTE-IN wire as indicated in Connections. 9
TARGET mode (Bit One processor connected to the PC) 1. When software starts, it scans the USB ports of the PC, searching for the Bit One; 2. Bit One found: the processor is connected to the PC; 3. Bit One NOT found: the processor is not connected to the PC; Press CANCEL to start the OFFLINE mode; 4. Inputs/outputs confi guration wizard; 5. Select the MASTER inputs being used (low level or high level) and the auxiliary inputs AUX1 - AUX2 - S/PDIF - OPTICAL - PHONE if used; 6. Assign the processor input channels to the signals coming from the sources (Ch1 Ch6); 7. MASTER input level setup (low / high level). Follow the instruction shown on the windows; Note: the setup is necessary to adjust the Bit One input sensitivity to the signal coming from the sources; 8. Wait until the setup is completed; 9. Input level too low; 10. Selecting the MASTER High Level input, the OEM source de-equalization function will be active; 11. If the de-equalization function is active, follow the shown instructions; 12. Select the loudspeakers used in the system; 13. Select any passive crossover fi lter; 14. Assign the processor output channels to the corrispondent amplifi er being used (Ch1 Ch8); 15. Specify any amplifi er using AD Link / AC Link system. 1 2 3 4 5 6 7 8 9 10 12 13 14 15 11 10
MAIN PAGE - DSP setting 14 1 9 8 13 3 11 12 4 2 10 13 7 15 6 5 MENU : File Load Setup Save setup Finalize to Bit One Sinchronize Check for update Update firmware Reset Default Answer Reset settings Credits Exit Load the Bit One general setup fi le, previously saved Saves the Bit One current state on the fi le IMPORTANT: Before disconnecting the Bit One from the PC, load all the parameters in the Bit One microprocessor. If you don t do this operation the Bit One won t be programmed. PC > Bit One: Sinchronizes and tranfers the PC sofware data towards the Bit One (if communication interrupts) PC < Bit One: Sinchronizes and tranfers the Bit One data towards the PC software (if communication interrupts) Verify if there is the PC software and the Bit One microprocessor fi rmware updating Updates the Bit One microprocessor fi rmware Resets the show of WARNING that have been disactivated during software use Reset of all Bit One parameters Informations and copyright Exit from the program MENU : Config I/O Configuraton Wizard External Source Dynamic Equalization Wizard Dynamic Equalization Bypass Com Setup Working mode Activates the guided procedure to select the Bit One inputs and outputs Selects the connected auxiliary inputs Activates the procedure to regulate the dynamic equalizer Activates (bypass OFF) / disactivates (bypass ON) the dynamic equalizer, without changing the settings Shows the connection port name between Bit One and PC STANDARD: not all the crossover and 31 band equalizer functions are activated, for unexperienced users EXPERT: the crossover and 31 band equalizer functions are completely confi gurable by the user MENU : Memory Load All Preset Save All Preset Load Current Preset Save Current Preset Copy Preset From Current Preset default Loads all the A-B-C-D memories from the fi le Saves all the A-B-C-D memories on the fi le Loads the fi le of a memory on the selected memory Saves the selected memory data on the fi le Copies the content of a memory on an other memory 11
MAIN PAGE - DSP setting CROSSOVER FILTER 1. The LINKWITZ or BUTTERWORTH fi lter crossover, available separately for the LEFT and RIGHT system. STANDARD Mode (Config Menù): The crossover frequency between two speakers (Lo-Hi pass) isn t separable. If the LOPASS (Woofer Left) is regulated at 300 Hz, even the l HIPASS (Tweeter Left) goes to 300 Hz. EXPERT Mode (Config Menù): The crossover frequency between two speakers (Lo-Hi pass) is separable. If the LOPASS (Woofer Left) is regulated at 300 Hz, even the l HIPASS (Tweeter Left) differently. 2. XOVER-LINK Function: the crossover works on the LEFT and RIGHT channels at the same time. If the LOPASS fi lter is selected at 300 Hz for the WOOFER LEFT, even the WOOFER RIGHT woks with the LOPASS fi lter at 300 Hz. DELAY and PHASE 3. Select the distance in cm or in inches of each speaker (or speaker system if there is a passive crossover) in the listening point. For example, select the WOOFER RIGHT and fi x SET DISTANCE to 70cm. Select WOOFER LEFT and set 30cm and continue to set the distance for the other speakers of the system. The DELAY shows the delay (in ms) the speakers nearer to the listener have, to acoustically position them at the same distance of the further speaker that has zero delay. 4. Inverts the phase of the selected speaker If WOOFER LEFT is selected and INVERT PHASE is activated, the signal applied to the speaker has inverted polarity, to avoid the creation of a gap at the crossover frequency matching point with another speaker (for example Tweeter Left). 5. 31 band graphic equalizer. STANDARD Mode (Config Menù): works separately on FRONT LEFT - FRONT RIGHT REAR LEFT - REAR RIGHT - CENTER - SUB. EQUALIZER If a FRONT LEFT system speaker is selected, for example the WOOFER (left), and the equalizer is regulated, this works even on TWEETER (left). EXPERT Mode (Config Menù): works separately on every speaker. 6. EQ-LINK function: the equalizer works on LEFT and RIGHT channels at the same time. In this way the graphic equalizer works separately on FRONT - REAR - CENTER SUB system. If a FRONT system speaker is selected and the equalizer is regulated, this works on all the FRONT system speakers (woofer left, woofer right, tweeter left, tweeter right, etc) EQ-OFF function: disactivates the equalizer (for the selected speaker), without moving the cursors. FLAT function: resets all cursors at 0dB. 7. Buttons to move various cursors at the same time If the buttons on 40-50-63-80 are activated, moving the cursor 80 even the other three move. SELECT ALL function: allows the movement of all the cursors at the same time. SPEAKERS - MUTE 8. Select the speakers to regulate, by means of the crossover, the phase, the delay and the equalizer. EDIT shows the application of the regulations to the selected speakers. 9. Select MUTE on the speaker you want to silence, reselect to activate it. The word lights and indicates that the selected speaker is off. DISPLAY 10. Shows the crossover and equalizer response curve, for the selected speaker. The RED curve is the crossover fi lter. If the equalizer changes, a green curve appears. 11. Buttons to show the crossover and equalizer response curve. The SUM button sums the two curves and shows the signal that is sent to the selected speaker. 12. The source you are listening to. 13. To show various curves select the various speakers (8) keeping the CTRL button on the PC pushed. To modify a speaker select EDIT near one of the writings in evidence. The BLUE curve shows the sum of the selected speakers responses, including the equalizer. The GREY curves show the crossover fi lter action on each speaker selected with the CTRL button. The RED curve shows the signal and the speaker you are regulating. MEMORIES 14. Recalls the A - B - C - D memory, to have four different setups. To create, save, copy and manage the memories go to: Memory menù 15. Visual indicator of the listening position. Used with the memories, it is usefull to make different setups for different listening positions. 12
Ext. Source EQ Selection of the signal input to listen and adjustment of the levels and equalization of the auxiliary inputs. (7) Selection of the source being used (if turned on during the initial setup) MASTER - AUX1 AUX2 OPTICAL S/PDIF PHONE (8) Equalization adjustment (not active with MASTER input) (9) Input sensitivity level to match the source s signal with the processor (10) Volume adjustment to regulate the output level between the different sources 7 8 7 9 10 Ouput Level Volume level of the preamplifi ed outputs 11. Key to link the sliders of all the channels from Ch1 to Ch8 It allows to move all the levels together 12. Volume level of each preamplifi ed output 13. Main output volume level. It moves the level of whole outputs without changing it singularly 14. Sub channel volume level (specifi c). It performs on the channel identified as Subwoofer. 11 12 13 14 Dynamic Equalizer Specialized for SUBWOOFER At low level listening, the feeling about the bass frequencies is lower than at high level listening. Better explaining, when low level listening, the subwoofer needs a higher level to feel it. When high level listening, the subwoofer level has to be linearized as the sound of the other speakers. The Dynamic Equalizer makes this regulation of the bass frequencies automatically and gradually, following the signal level and according to the listening volume of the system. To activate this function select the menu Confi g Dinamic Equalizer Wizard. The software enables two different modes, ADVANCED and EASY ADVANCED MODE (equalization available) 15. Select the Advanced mode 16. Select Low-volume and set the Min volume that is the equalization starting point. Press START. Move the sliders to set the equalization (18). Press SAVE. 17. Select High-volume and set the Max volume that is the equalization starting point. Press START. Move the sliders to set the equalization (18). Press SAVE. 19. Press X to exit. EASY MODE(fi xed equalization) 15. Select the Easy mode 16. Select Low-volume and set the Min volume that is the equalization starting point. Press START. Move the sliders to set the equalization level. Press SAVE. 17. Select High-volume and set the Max volume that is the equalization starting point. Press START. Move the sliders to set the equalization level. Press SAVE. 19. Press X to exit. 15 15 16 17 16 17 18 19 19 13
DRC - Digital Remote Control Main volume control. DRC is necessary if using the digital input of the Bit One. It selects the sources and recalls the 4 presets stored into the processor. If an amplifi er (TH) with AC Link system is connected to the Bit One, the DRC controls the parameters too. TURN ON/TURN OFF AND ADJUSTMENT OF VOLUME, BALANCE, FADER AND SUB VOL SRC knob: Push to turn on/turn off the Bit One. Rotate to make the adjustments selected by the following keys (default = MASTER volume) vol key: press to adjust the MASTER volume of the system connected to the Bit One bal key: press to adjust the BALANCE between LEFT and RIGHT of the system fad key: press to adjust the FADER between FRONT and REAR of the system sub key: press to adjust the volume of the SUBWOOFER of the system Switching on the processor, with DRC connected to the AC Link system, the display shows--------------------------------------------------------------------------------------------- vol bal fad sub SET SOURCES SELECTION----------------------------------------------------------------------------- Press SRC: At each pressure it selects a different source to listen if activated during the Bit One setup. It doesn t select the PHONE IN input. vol bal fad sub master AUX1 AUX2 Digital Electric Digital Optical HANDSFREE KIT FOR CELLULAR PHONES INPUT With incoming phone call and PHONE INPUT activated, the display shows:----------------- bit one PHONE call PARTICULAR BIT ONE FEATURES ACTIVATION-------------------------------------------------- Bit One Preset IN level vol bal fad sub SEL Key: It enables the selection of DSP memory (Presets) Dynamic Equalizer IN level DSP Memory 1 2 3 4 DSP memory: it recalls the memories (A/B/C/D) set into the Bit One AutoIN Level Adj: controls the calibration level of the MASTER source. If OEM source has its own equalization, it can change according to volume level set by the user. It is important, particularly if you use the Software function OEM De-EQ (cut off the source Equalization) do not move the volume of the source, in order to not change the timbre of the sistem. To change the overall volume, use the knob of DRC. If the listener moves the volume of the Master source, to set it correctly at the level of initial calibration (in the absence of information on OEM source) insert the CD (track 1) into the source, press yes button and adjust the volume (of Master source ) to bring the cursor (+), indicated on the display, on 0 and not more (hard clipping condition). Dynamic EQ ON ON OFF Bit one IN level m------0------m Bit one IN level m------0------m 14
EXAMPLE: Two way Front + Subwoofer DRC AMPS 1 - AC Link - 2 AMPLIFIED SOURCE Right Left Right Left SUBWOOFER WOOFER TWEETER 15
TECHNICAL SPECIFICATIONS Power supply Voltage Idling current: Switched off 11 15 VDC 0.5 A <0.04 ma Remote IN voltage Remote OUT voltage 7 15 VDC (1 ma) 12 VDC (5 ma) Distortion - THD @ 1 khz, 1 V RMS Output 0.002 % Bandwidth 4 22 khz S/N ratio @ A weighted 102 dba Channel Separation (1 khz / 10 khz) 75 db / 60 db Input sensitivity (Low Level Inputs) 0.13 3.5 VRMS Input sensitivity (High Level Inputs) 1.2 32 VRMS Max Output Levels 4.0 VRMS Input impedance (Low Level Inputs) 24 kω Input impedance (High Level Inputs) 5 kω Inputs Low level (Pre In): Ch1 Ch6, AUX1 L & R, AUX2 L & R High Level (Spk IN): Ch1 Ch8, Phone IN Electrical and Optical S/PDIF(Max 192 khz/24 bit) Outputs Low level (Pre Amp Out): Ch1 Ch8 Digital Out: AD Link (Ch1 Ch8 S/PDIF) Crossover Filter type 12 / 24 / 36 / 48 db Linkwitz 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48 db Butterworth Crossover Mode Hi Pass / Low Pass / Band Pass Equalizer Filter type Equalizer Gain 31 Band, ISO 1/3 Oct, 20 Hz 20 khz +/- 12 db Delay 0 22 ms (748 cm / 294.5 inch) Size B (Base) x L (Lenght) x H (Height) mm/inch 225 x 150 x 32.3 / 8.85 x 5.90 x 1.27 Weight kg/lb 1.345 / 2.965 16
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