JBL GT150 Car Subwoofer "subs turn sound" Questions

15" JBL Sub Well i had a 15" sub and whenever iturned it up it sounded like ****. So i talked to my buddy and he said that it wasnt getting enough power to the sub. So i went out and bought a 400rms ...

...subs). When you turn up the gain to high your cause your amp to distort and it can get as bad as sending a pure DV current to the sub. That DV current will blow subs because of all the force directed ...

only one thump when car is turned on. problem in amp strength or subwoofer? subwoofer thumps once when car is turned on. amp overheated and melted some time ago and I tried repairing (changed all the ...

...subs pop then immediatly produce no sound I have an alpine type r and a kenwood kfc-w3011 both are 12 inch woofers. I also have an alpine 500watt mono amp. When the volume of the stereo is turned up ...

subs not working. my sub turns on just fine, connections are fine. when i play music my sub has constant static going through it, thats all you hear. i have the stock bose speakers, kenwood headunit, ...

12'' sub woofer i have a 12'' sub and when i turn it on it sounds like something is scraping in the sub if i put a little pressure on one side of the sub it sounds alright... whats going on here and ...

...sound right my car sub works when i turn up the stereo, and it still vibrates like it is hitting hard but has no sound like it used to. i don't think it is blown though because it doesn't make that ...

...subs. first problem is when i connect one amp to my speakers it just hisses and crackles. this never happened before. when i turn up the gain to try and get some bass it doesnt do anything. then ill ...

...sound to you like the subs were over powered and blown from to much power. when i had the subs i never over powered them because the amp i had was to powerfull so i made sure that the amp was turned ...

sound. I tried playing around with the settings on the amp but nothing works.. the crossover settings dont work, the frequency range doesnt work... or should i say doesnt make the tweeters work. I can