[Juggles]

I have a cheapy little head unit, a 35W Aiwa and my rear speakers (4-inch Rocksford Fosgates) keep popping and crackling, especially when there's some bass to a song. I first had Eclipse speakers that did the same thing. When I replaced them with the RF's, it stopped for a while and then started again a week later. Then I tried bass blockers and then the speakers stopped crackling again for a while and now they're doing it again. I have both the poss. and neg. lined up right. My next step is to run better wiring back there (it's still stock). Will this fix my problem or is there something else causing this? The front speakers (6 1/2 Pioneer 3-Ways) are on stock wiring but sound great. Any ideas? Thanks.

P.S. I can't really fit larger speakers in the back and I don't want to spend the money at this time.

 

[VTECnicalAccord]

I would say either check the wiring to the rear speakers, or take your deck and get the rear outputs checked.

 

[VTECnicalAccord]

Have any luck?

 

[Kloth]

Ive seen this happen before, check the wires right behind the deck, sometimes they get cut up and touch the positive and negative together and make your speakers crackle, It sounds like a wiring problem...............your speakers aren't blown are they?

 

[Juggles]

No, no luck. I have to work on the weekends so I haven't messed with it. Anyway, I'll check the wiring. My speakers blew once... I think. My old Elclipse speakers suddenly made a loud pop, followed by a ricochette sound around the car's cabin, followed by an electric burning smell. I never found what bounced around and the speakers sounded the same afterword (like crap). The R.F. speakers didn't do this... yet. Egad!

 

[APOCALYPSE]

turn the volume down or turn the bass down on the headunit if u want bass get a sub

 

[Juggles]

Bass is already low, subwoofers weigh too much, and the volume isn't that high.

 

[1fast2dr]

6x9's are done...

Sounds like you got some cooked 6x9's

If they crackle with the bass, you have toasted them. Distortion kills...

Stock wiring is fine, especially if you are only using about 30 watts, but if you overdrive an amplifier trying to get more volume, you will distort the amplifier and cook the speakers.

1fast2dr

 

[Juggles]

The screwed up speakers aren't 6x9's, there's 4 inchers. Plus I don't have an amp. The speakers are rated for 50W nominal.

 

[1fast2dr]

Sorry my mistake, but it doesn't matter what size they are, wether they are 4", 6x9, 12" subs.....People often do not understand that a 100W speaker can die from 10Watts of power.

Distortion Kills Speakers. If you clip the signal that goes to your speakers (i.e the audio is flattened off at the peaks), then your speaker is held at its excursion limits longer, thus the voicecoil heats up, and eventually the windings will either open or short, yours seem to be holding up, but it sounds horrible.

I would start shopping for some new 4" speakers, but thats up to you.

I have worked in the car audio field for 6+ years

1fast2dr

 

[1fast2dr]

FYI: you do have an amplifier in your head unit, what else would you power your speakers with...Most stock head units put out about 8WRMS, and aftermarket are about 18WRMS.

These are realistic power outputs. No headunits will put out a true 40X4 RMS. Not possible

1fast2dr

 

[Juggles]

Well, I meant I didn't have an additional amp. Anyway, this is already my second set of speakers that's been killed. Wouldn't replacing the head unit be more practical and then replacing the speakers? How can I prevent this from ever happening again?

 

[1fast2dr]

You could replace the head unit if that's what you think is causing it. How loud do you listen to your radio (and be honest). If you tend to crank it, and it starts sounding bad, you are hurting your speakers. Distortion begins before you can even hear it, especially at low frequencies (i.e bass).

The best way to prevent it is to either get an amplifier to provide more power to your speakers, or turn down the volume.

Just remember, if it sounds bad, turn it down....

Hope this helps

1fast2dr

 

[1fast2dr]

If you think its your headunit. Take it to a local audio shop, they can bench test it there to ensure its not the head unit, or better yet, take your whole car there and have them check that none of your speaker leads are shorted to ground. It doesn't seem like that's it though since you have blown your speakers before, and the second set did not do it from new.

Sorry to confuse...

1fast2dr

 

[Juggles]

I listen to it fairly loud. Not so much that I can't hear when I get out of my car but fairly loud. Also, there's no distortion when I do listen to it. When I crank the stereo, I will get distortion but I never listen to it that high. Ugh... I don't feel like spending more money.

 

[1fast2dr]

Wish I had a quick solution....

Good luck

1fast2dr

 

[Juggles]

Me too.