Notice US BLASTER USB 3451

« from 0dB to +12dB. 10INDICATORLIGHT When this LED sends out blue light, it means that this amplifier have being working now.When this LED sends out red light, it means that the self-protection of the amplifier. 11FUSE Standard automatic fuse, you must use the same power fuse if you need to change it. 12SPEAKER Speaker connecting terminals. © US Blaster Europe BV USB 3451 / 3461 - 3471 - 3481 Car Power Amplifier ELECTRICALCONNECTION 13+12V Anode of power connection terminals. Connect to the anode of car battery. REM Terminal to be connect with Remote cable, which comes from the source and which controls the amplifier switching on. Applied voltage must be between 7 and 15VDC. GND Ground terminal. Connect to the car underpan . Keep the length of the ground cable to a minimum. SPECIFICATIONS ModelUSB 3451USB 3461USB 3471USB 3471 RMS Power @ 13.8 VDC 4 Ohm Stereo4x80 Watt4x120 Watt2x150 Watt2x200 Watt 2 Ohm Stereo4x100 Watt4x150 Watt2x180 Watt2x250 Watt 4 Ohm Bridged2x160 Watt2x250 Watt300 Watt400 Watt Impedance2 Ohm THD Distorsion0.08% IMD Distorsion0.08% Frequency response20 Hz~20 KHz Input Sensitivity200 mV~6V Input Impedance15K Signal-to-noise Ratio90 dB Channel seperation50 dB Remote Bass Control0dB~+12 dB Crossover Network Low Pass Filter40 Hz~250 Hz Bass Boost0 dB~+12 dB High Pass Filter80 Hz~500 Hz Fuse Rating4x20 A4x20 A2x20 A2x20 A Size (HxWxD)65x258x468 mm65x258x528 mm65x258x398 mm65x258x468 © US Blaster Europe BV Connect to chassis ground of vehicle* Connect to remote turn-on lead of source unit. Connect to +12Vof battery with appropriate FUSE value.USB 3451 / 3461 / 3471 / 3481 Car Power Amplifier SYSTEMWIRING 4-CHANNEL STEREOCONFIGURATION © US Blaster Europe BV Connect to remote turn-on lead of source unit. Connect to chassis ground of vehicle* SPEAKER IMPEDANCE 2~4 OhmUSB 3451 / 3461 / 3471 / 3481 Car Power Amplifier SYSTEMWIRING 3-CHANNEL BRIDGED MODECONFIGURATION SYSTEMWIRING 2-CHANNEL BRIDGED MODECONFIGURATION © US Blaster Europe BV Connect to chassis ground of vehicle* Connect to chassis ground of vehicle* SPEAKER IMPEDANCE 4~8 Ohm SPEAKER 2~4 Ohm SPEAKER 4~8 OhmUSB 3451 / 3461 / 3471 / 3481 Car Power Amplifier TROUBLESHOOTING Before removing your amplifier, refer to the list below and follow the suggested procedures. Always test the speakers and their wires first. AMPLIFIER WILL NOT POWER UP. Check for good ground connection. Check that remote DC terminal has at least 7V DC. Check that there is battery power on the + terminal. Check all FUSES. Check that Protection LED is not lit. If it is lit, shut off amplifier briefly and then repower it. HIGH HISS OR ENGINE NOISE(ALTERNATOR WHINE) IN SPEAKERS. Disconnect all RCA inputs to the amplifier, if hiss/ noise disappears , then plug in the component driving the amplifier and unplug its inputs. If hiss/noise disappears, go on until the faulty/noisy component is found. It is best to set the amplifier input level as insensitive as possible. The best subjective S/N ratio is obtainable this way. Try to drive as high a signal level from the head unit as possible. CAR POWER AMPLIFIER PROTECTION LED COMES ON WHEN THE AMPLIFIER IS POWERED UP. Check for shorts on speaker leads. Check that volume control on the head unit is turned down low. Remove speaker leads ,and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty... »