Currently one of my subs are pumping and the other one is but not to its full capacity. Can there be something wrong with the amp? I just want some advice as on what to look for when I redo everything. Can the grounds be a reason (maybe I have to recheck them). They are the Phoenix Gold Xenon series, DVC, 12" and currently connected to a Sony amp (changing it to a Rockford tomorrow).... if this is a repost I'm sorry but my other thread went dead.

 

so let me get this right, you have 2 12's off a sony amp , and one sounds loader than the other, did you try swaping the channels on the amp left and right and see if its still doing it? if you still have the same problem possibly the sub. also you may have the polarity swaped on one, so there fireing in oposit causing cancleation....

 

I thought it was the polarity also, I was told it was fine but didnt double check it. I'm going to entirely overhaul it altogether to get it right this time once the other amp is put in. I'll try swapping the channels on the Sub. I was told by my friend that the amp might have something wrong inside of it as well since the sub is hitting just not fully. If I had to guess tho, it would be the polarity cuz it was first put in, not tested, then switched because it was thought to be wrong and the end result was one hitting and the other following. If theres anything I'm missing or need to know please share. Thanks again!

 

Before you do anything else, reverse the pol on one and see if it fixes the problem. If not then you delve deeper into it.

 

box leak perhaps?

 

sure you hooked up both voice coils (assuming they're dvc) on the weaker sub?

perhaps 1 is wired wrong?

 

I apologize for the late post... the sub is a little raised from the box since it was screwed in a few times... it was the 3rd pair of subs on this box so the previous screw holes might play a minimal factor. I havent checked the DVC wiring inside and the polarity I'm gonna check tomorrow. It moves and rattles when the music is on but slightly. I just wish this stuff were an easy plug and play lol.

 

I bet an air leak is there...

 

sounds to me like he only hooked up one set of the voice coils, or one set of the VC's are blown :O. Or its not wired properly.

 

don't think a VC is blown, the sub won't work when wired in parallel or series with a bad voice coil.

ah well, just go back and check everything.

 

eh, doesn't have to be completely blown, ive seen vc's that were bad just make funny noises

 

Maybe its all of the above

 

Ok I've sanded down the area where the ground wire is located into my trunk basically to the metal part (I kept sanding and sanding and there was no more to take off for good measure). There is still a little feedback when changing tracks but not as much as before. I can say its about half the amount as before. Where else can I check to fully eliminate this sound? Also with the sub thumping issue... is that due to my wiring not being attached to my headunit? Thanks.

 

Alright the mistake made was that the wiring for the stock amp is a mono amp (duh!) and it wasnt able to transmit the power to the 2-channel amp allowing it to provide power to BOTH subs. Everything now is connected to the rear door speaker wires since they run from the headunit (nothing is attached to my headunit) and it works just fine. I had to buy an RCA converter/hi-lo converter since the Bose system is a PITA to work around. One issue tho... turning off the subs, there is a loud thump (bass drop) but thats it and the track change can be heard thru the subs (minimally). There is no more thumping sound when turing on the subs, just when turning them off. I've sanded down the grounding point to what I believe is its metal (a good 5 straight minutes of elbow greasing it) lol . Are there any bare metal grounding points in the trunk or do they all have a flat black paint on them? Can it be the ground that is causing the track change noise thru the subs and the thump when turning the subs off? Thanks.