Alpine MRX-M50 - Monoblock 500 Watt RMS Subwoofer Amplifier "headunit sub rca" Questions

...hooked up from headunit to rca channel 3 and 4 becaus emy speakers are wired to channel 3 and 4 and the 1 rca for bass from headunit to channel 3 you should be running 2 RCAs back from your ...

...rca input, then switch on headunit and if the amp produces a constant bass thump it then means it has an internal fault. if the amp idles quietly then replace the rca cable, or try connecting the ...

...sub is a 1200 sony xlpod headunit and speakers are pioneer Some older Pioneer radios require you to connect the Subwoofer RCA to the rear output on the back of the radio and then you have to turn on ...

...cables and the speaker wire going to the subs. any help is GREatly apreciated ! starting from amp,what is the rca connected directly to. headunit or adoption? its connected directly to the head ...

...headunit has (RCA output voltage) and match it to your amplifiers input sensitivity (GAIN) eg: if your headunit has 4 volt outputs then on this particular amplifier your gain knob would be completely ...

...amp powers up, no protect mode, but there's nothing going to my subs, what could be the problem? check for defective rca wires. maybe a sub terminal has broken off? defective pre outs on

THE RCA IMPUT BUT ALSO CHECK YOUR RCA CABLES AND THE SUB INPUT ON YOUR HEADUNIT my 1000/1 jl audio amp is turning on but it gives me the low ohms light and i dont have no subs connected what can it be

...headunit. Make sure when you run it that you run it away from the power wire to prevent from having engine noise. You also need a ground wire, wich should be to a stud on the frame of your car, as ...

...RCA to the amp. but still no sound..ive done everything i know to do. Ive switched all wires and everything to make sure they are connected correctly, but i didnt ground the Adapter, the man said no ...

have had the same problem. Are you getting an output from ur headunit RCA's? Sometimes you need to turn the sub RCA's on via ur headunit. I would make sure im getting an output from the headunit first