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Page 2: ...d High current mosfet switching devices 24dB Oct precision crossover Oversized O gauge power amp Ground terminal Heavy duty aluminum heatsink Highest quality bolt fixing Rca jack 4 Ways of accurate protection circuits Speaker short DC offset Low amp High Voltage protection Thermal protection The Highest possible efficiency and quality with hand wound power supply transformers SPECIFICATIONS SPEC I...
Page 3: ...r LED Green lit shows correct operation Protect LED RED lit shows general malfunction faulty connection or 4 ways protection GAIN 5V TO 0 15V Matching the output voltage of the headunit s RCA line outs to SoundQubed amplifier s input section SUBSONIC CROSSOVER FREQUENCY 10 TO 50HZ 24DB OCT Control the high pass point for the speaker outputs to eliminate extremely low frequencies BASS BOOST 0 TO 6B...
Page 4: ... SoundQubed digital amplifiers work to 1ohm All linked SoundQubed digital amplifiers work to 2ohm GND POWER POWER POWER REM GND GND 12V 12V 12V Head Unit Remote Turn on 12V Battery 12V Battery 12V Battery AQ 4 SPECIFICATIONS SPECIFICATIONS Frequency Response 20Hz 30KHz Signal to Noise Ratio 105dB Damping Factor 200 Input Sensitivity 9V 0 2V 1 2 CH Crossover Range 45 450 Hz 450 4 5 Hz Crossover Mul...
Page 5: ...3 4CH SUBSONIC CROSSOVER FREQUENCY 10 TO 360HZ 12DB OCT Control the high pass point for the speaker outputs to eliminate extreme low frequencies BASS BOOST 0 TO 12DB NARROWED BAND 30 50HZ It controls boost POWER PROTECTION INDICATOR Power LED Green lit shows correct operation of SQ 4 Protect LED RED lit shows general malfunction faulty connection or thermal protection 3 4CH X OVER SELECTOR It has ...
Page 6: ...f the vehicle Connect one end of a short piece of the same size cable as the power cable to the grounding point Run the one end of the cable to the grounding point Run the other end of the cable to the mounting location Connect the ground cable to the screw terminal labeled as GND REM REMOTE CONNECTION Run a remote turn on cable from the switched 12V source You will be using to turn on the system ...
Page 7: ...your speakers to SoundQubed amplifier s mounting location Keep speaker cables away from power cables and SoundQubed amplifier s input cables Use grommets anywhere the cables have to pass through the holes in the metal frame or sheet metal Connect the speakers according to the type of the terminals on each speaker Strip 3 8 of insulation form the end of each cable and twist the cables strands toget...
Page 8: ...PUT MASTER INPUT SLAVE INPUT PRO PWR OUTPUT IN L R R L OUT AQ 4 SPEAKER CONNECTION DIAGRAM GND REM BRIDGED BRIDGED POWER 12V 1CH SPEAKERS FUSE 3CH 4CH 1CH Mid Range Tweeter Passive GND REM BRIDGED BRIDGED POWER 12V 1CH SPEAKERS FUSE 3CH 4CH 1CH WARNING 8 4ohms AQ 4 minimum impedance is 2ohm stereo or 4ohm mono ...
Page 9: ...master and input slave switch to input slave position 5 Connect speaker cable on master amplifier to subwoofer 6 Connect speaker cable on slave smplifier to subwoofer 7 Connect speaker cable on master amplifier to speaker cable on slave amplifier GAIN 5V to 0 15V 10Hz to 50Hz 0dB 6bB 35Hz 250Hz SUBSONIC BOOST LPF BASS SPEAKER REMOTE Head Unit Remote Control R L L L R OUTPUT MASTER INPUT SLAVE INPU...
Page 10: ...s make better airflow and no obstruction around SoundQubed amplifiers 3 Speaker Short Pls make sure the speaker wire connection and re route speaker wires 4 DC offset When over 4V DC SoundQubed amplifiers will be protected Pls check whether SoundQubed amplifiers work after removing FCA input If SoundQubed amplifiers work after removing RA input then pls measure DC by checking RCA input L and R The...
