My girlfriend has a mach 460 in her 2002 V6 mustang and every time she turns the volume above about 50% the rear speakers will make a pop sound and kick off for anywhere from a couple of minutes to like 10 does anyone have any advise for me on what to look for to figure out whats going on my friend had a 2002 GT with a mach 460 and we would crank it to 100% no problem so i know something is wrong.....i dont know alot about car audio but with help im sure i can figure it out, i also dont know much about mustangs either because i have not yet had one but any help would be great


thanks, Nick

 

Mine pop too every once in a while when i'm playin heavy bass. It might not be a wiring problem so much as the speakers just can't always handle it.

 

i know for a fact the speakers can handle more because my friends GT did and my other friends 96 cobra with 100,000 miles did and this car is alot newer with only 30,000 miles and 50% power isnt alot i know a 460 can do better

 

If the speakers pop when bass is applied, your voice coils are maxing out. However, this will not cause any loss of sound as you described. This sounds like an ampliefier related issue.

 

thats what i was thinking is there anything i can do that might fix the problem or test the amp??

 

What is happening is one of two things. You are maxing out the speakers eather from over powering them or one is blown. Or the wire inside that goes to the cone that flexs when the speaker moves has become broken or bent and is eather bumping the metal frame or each other. When that happens the amplifier "senses' a shorted condition and turns off the speaker to protect itself. After and internal time. It will turn back on until it is shorted again. Try turning the base way down. Then turn it up and see if you still have the same problem. The lower frequences are what makes the speakers move the maximum. If it goes away, you may wish to add a subwoofer for the base fill, or replace the speakers. This should be a speaker problem not an amp problem. You can also turn it up when faded all the way to the rear or front and see what ones are causing the problem so you can avoid replacing all the speakers if you dont want to.

 

if the system is totally stock can I be over powering them if there not blown.......also i know its the rear speakers except they sound fine when they are powered on can they be blown and still sound normal??

 

it is easier to do damage to a speaker by underpowering it.... On a low power system, the signal will get maxed out sooner, causing the signal to "clip" or pop. When the speaker starts to clip, you are sending short bursts of dc current to the speaker rather then the musics ac signal. This will cause the speaker to go to its max, and hold it for the short duration that the clip lasts. The longer the signal has been clipped, the longer the speaker will have to be maxed out, and the more damage will be caused. Imagine you can do 10 pull ups, but now instead of going straight up and down, pull yerself up and hold for 3 secs.... Now how many will you be able to do?

It still sounds like an amp issue though. I always start by checking connections. Just wiggle all the stereo connections and see if you can get the problem to happen.

 

You shouldnt be able to over power but look at it there 10 years old, the spiders get worn out allowing them to move farther then normal. Also if you have your bass turned way up, you sending so much dc to them its gonna peg them in any case, just if the speakers where new the tension of the spider would hold them back.