So I've gone through 2 subs now...

Well,yesterday my new Pioneer sub pooched out on me. I think it's a damaged voice coil. Always cut out randomly then continues working,then cuts out,plays again,cuts out. Same problem with my old sub.

I have the box mounted behind the passenger seat,so maybe the weight of someone sitting in the seat is putting pressure on the sub as it pushes? But what I don;t understand is I hardly have the stereo on when I have a passenger. My amp is a 400w 4 channel Kenwood and the sub was a 450w max 250rms Pioneer,so obviously capable of handling the power supplied to it. Seems it usually cuts out the louder the volume is. If I have the volume low,it's generally ok and may cut out only a couple times,where as loud,like half volume,it will constandtly cut out like every other beat.

I don't understand why I've killed 2 subs now. I've never had problems like this in any other vehicles I've put subs in.

I think this time it's time to go with a pair of 8" subs between the seats. But I have no money right now.

I'm just bummed now.

doesnt sound like youre killing the subs sounds to me like you amp is overloading, going into protect and coming back out, i would try a different amp, maybe one a lil more powerful, that lil amp isnt going to blow a sub that easily unless you have voice coming out of it which i doubt, i would hook up a different amp (speakers dont just cut out when their blown, they crackle or just stop all together)

Another question - what gauge power wire are you running to the amp and how is it grounded? If the voltage to the amp drops to low, it may also go into protect mode. This may also send a bad signal to the sub which inturn can damage the voice coil.

i'm with them c/m sounds like your amp is too small for the sub, check the rating on the amp in bridged mode (if that's how you are running it), and make sure it puts out enough watts @ the correct ohm rating for the sub......
also make sure your wiring to the amp is sufficient for it's current draw & properly grounded too.

slammedyota91 and NYTRDR24 are 100% right. Start by checking that the ground hasn't come loose. Its run with 4GA power 4GA ground so thats not the problem and its definatly enough current draw for that amp. If you have the pioneer TS SW2541D then it is a 4 OHM DVC. I can't remember what amp that you have but I did a quick search and most Kenwood 4 channels amps that are bridged run 4-ohm stable in bridged mode (Kenwood KAC-6402) which I would bet is your problem. If you are running the incorrect load it will put the amp into protect (cut them out). It is also putting the incorrect load on the voice coils and burning them out. The first sub that you had probably blew just because it was a POS. Make sure that you have the wiring correct for the subwoofer.

hmmmm.....

Well over the long weekend my buddy adjusted the settings on the amp and it absolutely rocks twice as hard as the original one ever did,which yes,was a POS.

Yes,my amp is a KAC-6402,and I haven't touched a thing with the wiring since you installed it for me,other than when I changed the sub.

I don't know what model the sub is,but it is a TS-series.

Just strange that if it is a loose connection,how or why it has come loose.

Thanks for the help guys!!

The origional sub that was in there was a single voice coil, the new one you put in is a Dual Voice Coil or a DVC. Since you have 2 voice coils now you must wire it to match the OHM output of your amplifier when bridged or whatever your application may be. If it is wired incorrectly, which would be my bet, would cause all of the problems that you described.



Since the ground is behind the drivers seat you may have caught the wire, turning it a slight bit and then the vibrations did the rest???? Who knows and who cares, just check it. If its loose tighten it and recheck it in a week. I agree that the loose ground could cause the amp to cut in and out but it wouldn't cause your sub to go.

Ok,so I went out and checked the amp. Ground is good,all the wires are tight. I didn't check how it was wired for 2 or 8ohm,but my other question is why all of a sudden it would start doing that after already using it for over a month with no problems??

i know its hard to believe but electronics do wear out and faster if not installed properly ie wiring at correct ohms

how is that hard to beleive? it's like anything mechanical or whatnot...overuse it,dont maintain it or use it improperly and it'll mess up sooner rather than later.