Hi ive just bought a 2nd hand sub n amp,wired them up and i can only get the amp 2 work,my other subs work plugged into the same amp just to check but the xplod wont,im not getting anything wot so ever,i was told that if it had blown then i would get summit even if its a **** sound or crackling, all the wires seem ok please help

HELLO THESE AMPS ARE FAMOUS FOR DRAWING ALOT OF CURRENT AND IF YOU PLAY THE AMP WHILE THE VOLTAGE DROPS FOR TOO LONG YOU CAN FRY THE AMP BUT AS FAR AS THE SECOND AMP NOT WORKING AS WELL YOU MAY HAVE A PROBLEM WITH THE RCA'S OR THE OUTPUT ON YOUR HEAD UNIT WENT BAD OR YOU HAVE A BAD GROUND CHECK ALL FUSES THEN CHECK THE GROUND WIRE TO MAKE SURE ALL PAINT HAS BEEN SCRATCHED OFF AND THAT IT IS CONTACTING BARE METAL THE ONLY OTHER OPTION IS FIND A FRIEND THAT HAS THEIR WIRES RAN AND HOOK UP YOUR AMP ON THEIR SUB IF IT WORKS THEN TRY IT WITH YOUR SUB IF IT GOES INTO PROTECT THEN YOU MAY HAVE A BLOWN SUB CAUSING THE SHORT HOPE THIS HELPS THERE ARE ALOT OF OPTIONS START WITH THE WITH GROUND AND GO FROM THERE

You can try to connect the remote power wire at amplifier to main power with a jumper wire if sub works with cd and other sources.Then check remote wire from behind radio or you can simply connect remote power wire to a another switched power source from fuse panel.Just make sure its a clean dedicated power source from fuse box and make sure it turns off amp..Goodluck

Hi there,
This amp should run comfortable at 2 ohms/channel. However, your dual voice coil subs are rated at 4 ohms. This means when you connect the 2 voice coils together in parellel (positive to positive and negative to negative both coils wired to one output) the amp will see 2 ohms. So if you connect both subs to one output then your amp will see 1 ohm (not good) If you run the voice coils in parellel but the subs in series then the 2 resistances (ohms) will be added together. So that way the amp will se 4 ohms. This is fine but the amp would push more power into 2 ohms. You can run one sub on each channel if you can split the head unit output to 2 outputs, problem is then you will be halving the amount of power to each channel. Personally I would probably be more inclined to run 1 sub on this amp and run another amp from the pre-outs on the first amp for the 2nd sub. Try to find another amp the same to run the second sub. Mind you, 2 of these amps will need some big power cable to run them but should shake your teeth out!
Hope this helps

try testing the amp without speakers plugged in. Run the sub preamp out to the amp that you will drive the subs with, but don't wire up the subs yet. Test for protect mode kicking in.
Yes - unplug the rca ins from the amp. retest.
No - Problem lies within the sub wiring. What is the load on the amp (measure with an ohm meter)? If it is below 4ohms, chances are the amp can't dip that low. Give it more resistance by wiring it differently (series vs. parallel)

Bruce

simply give it a 2 wire signal and you should hear something! if not then depress the cone lightly back and forth, if you hear alot of scratching/scraping sounds, prognosis in not good.

Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

try reconnecting your rca's from the deck to the amp when finished wire one speaker positive to positive on left channel and negative to negative on right channel then connect the 1st subwoofer. if all power and sound is fine and working turn off power to amp and connect negative terminal of 1st sub to positive on 2nd sub and positive from first sub to negative on second crossing the wires runs the speakers in series another way to try is parralel the speakers wiring by connecting positive left channel output of amp to positive on 1st sub same with the negative then splice positive to positive on second sub and same with negative.

try to check and clean the wiring as clean as possible to avoid messing up on your connection. Check the polarity of you subs to yuor amp if you have it connected on the outher way around it would not give you a good result. check the polarity this will solve your problem. Over powering your sub will fry it easily try to tune it a 10" sub wont give you a 15" performance..

you've spent alot of money on **** by the sounds of it!!. you should only ever run multiple subs the same brand, power and resistance you can just connect any old subs to a system you need to wire them depending on the load that the amp needs to see. first thing is to try the amp/s on a individual sub to check your amps still work once done check the subs 1 by 1.

audiobahn.com has a tech support with diagrams on thier website check it out