I have a pioneer DEH-P5900IB deck and a 760 watt pioneer amp, with 2 kicker subwoofers 150 watt RMS and 300 watt peak. Everytime I turn the music loud like 25+, with songs with lots of bass, the subwoofers cut out for maybe 2 secs and then play fine for a little bit and then cut out again. What could this be? I was thinking that my power wire might be loose and when the bass hits it messes with the wire or something. You think this could be the problem? Any help would be great thanks

 

do your lights dim? does the amp go into protect mode at all (usually a little led on the top/side)? could be a few things, but power connections would be one of the first areas to check.

 

How many voice coils on each sub, ohm rating and how is it wired to your amp? Bridged or stereo?

 

I guessn you have the gain set to high on the amp. Have you tuned the system yet?

 

The subs are 4 ohms Im not sure about the coils and the connection is bridged. I will check if my lights dim at all when it gets dark out and no I havent really tuned the amp I just connected it straight out of the box and it sounded good so I didnt mess with it lol.

 

sounds like your amp is clipping.

 

That's the problem right there, your running the amp in too low of a load, your lucky you didn't burn it up. What's happening is it's going into protection mode.

Either rewire the amp in stereo with one 4 ohm sub on each channel or replace the the subs with 8 ohm versions.

 

Did my suggestion fix your problem?

 

i dont know if this will help you or not but, do you have a glass fuse under your hood for your amps power wire?

only reason why i ask is because the other day i was bumping my system then it cut out...then every time after that when the volume went passed 21 it would cut out..then i would turn the volume back down and it would come back on..would play fine on low volume..i only had the system 6 months (all memphis). so i took it to my boys shop who did all the work and they tested everything even put a new amp in and dident work did the same thing..come to find out the voltage from the glass fuse to the amp was lower then from the battery to the fuse.. the heat from under the hood put a beatin on the glass fuse. replaced the glass fuse and worked fine.

 

What gauge wire did you use for the power AND ground for the amp? You need to run at least 8 gauge wire for both.

 

check your ground and make sure you have a good connection thats usually the culprit for the amp to clip out my friend also has that amp and his does the same thingand im starting to think the amp is garbage because its hooked up properly and still has issues
try different amp if you can and see what happens

 

How do you know your friend has the same amp, I didn't see a model# listed?
From what you've described what your amp is doing is not clipping and it's not going into protect. If it where going into protect it should be off for longer then a second or two. It sounds like it is shutting down. That amp will dump power into a vary low resistance, it'll just get hot and die soon. You have a high resistance some place in the power supply or ground. As the current your amp pulls goes up, the voltage drop at this resistance is going up, as the voltage drop at this point goes up, the voltage to the amp goes down. To the point the amp can't work, so it stops working.
Now you could have two problems going. If the sub are bad the amp could be pulling more current. This would exaggerate the high resistance problem. Conversely, wiring the subs so the amp sees a higher resistance load, the amp would pull less current and may cover up the problem. But it'll still be there.

 

I'm really suprised no one else has supported my suggestion of redoing the wiring configuration....it's a common mistake to wire the woofers incorrectly to the amp.

Showing a pioneer amp a 2 ohm load when bridged is a big no no

That's why it cutting out when it's cranked up.........overheating and going into protection

 

88TAfreek, I agree that the 2 ohm load bridged isn't helping, will lead to the early demise of the amp, and should be changed. But from the description of the problem it sounds like a connection problem, if was was going into protect, it should be staying off longer. I'd rather see him fix that first, then get him to change the load the amp see. Change the load may cover up the connection problem, but not correct it.