Hey guys how you all doing, well here it goes, i've had my system running for quite a while, 2 years in Feb. this is what i have:

Pioneer DEH-P9400MP (Head Unit),
Alpine V12 MRV-F345 (4 channel AMP) 70w RMS/channel,
MB Quarts PCE-216 (front components) 70W RMS/

very simple and straight forward system. it has sounded good all this time until, a week ago, i had been noticing a little bit of distortion from the speakers when volume up, but as soon as i lowered it it was fine.
a week ago, while listening, at high volume (with no distortion) for a few minutes, started to hear distortion and fried. WHY?
i have tried to contacting MB quart with no luck

thanks for the help
and what should i get now?

 

Head unit has amplifier too , so HU has ~50W + 70 = 120W output for 70w Speakers


possible ?

 

Possible.....

 

^^ only if he wired the speakers to get power from the HU and the amp, which most people usually don't do.

Maybe they were just old?

 

He definitely didnt have the head unit AND amplifier hooked up to the speakers at the same time...that would have lasted all of 10 seconds before the HU went up in smoke.

There are only three ways for a speaker to be or go bad: Manufacturers defect, which inevitably results in malfunction, too much power (as in so much that the voice coil sustains too much heat over a period of time and either locks up or completely gives out) and the most common distortion. Distortion causes excess heat (like friction in a motor) and after a while the voice coil will fail.

Its more likely that you just listened to the speakers at a volume level that incorporated just enough distortion to over time cause the failure.

Improper gain stepping is the most common attribute to that cause.

 

If both the left and right side failed at the same time....I'd look at the amp. The likelyhood the both speakers failed at the same time is unlikely.

 

Thanks a lot guys! for the help, thats a good point, left and right seem to have fail, im gonna check the amp, maybe hook it up to the other channels see if the amp is what is blown ( i doubt it thought) but i'll take a look at it. thanks alot again, i;ll get back to you guys

 

Negative on that one, i checked the speakers with the other channels and same, pair of compnets are definly FRIED! i just bought a set of Boston Acustics pro SL65 ? i think is the model number, 80w rms, and 220w max hopefully that might work. im thinking of re duing my system completely from scratch, new wires and all.

My next help question, where can a get good RCA and Speaker wire (Monster wires maybe?) for a good price and how much (lenth) would i need? amp will be in spare tire compartment. thanks alot for the help.

 

anybody ?

 

Get Knuconceptz cables. Really cheap and great quality.