Uh oh...amp made high pitched squeal?

[I Like Waffle]

So i was just outside messing around with my subs because one came unhooked and i was hooking it back up. I thought the car was off but key was in the acc position with the volume all the way down, and i didnt notice if my amp power light was on or not. But anyway when i was using the allen wrench to loosen the terminal, it touched the metal on the amp and made a decent sized spark. I didnt hold it up there or anything but when it did that the subs made a high pitched squeal when i turned the radio up, though the squeal was at the same level no matter how loud the radio was. They still played the lows fine though. I turned it off and turned it back on and the noise stopped. Could i have damaged my amp? Seems to be fine but im just wondering what i did really. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif My resistance on my subs went from 3.8 to 4.4, dont know if thats for sure though, could just be my dmm acting up //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Click to read more...

 

[I Like Waffle]

It only makes the noise at idle now. But its not stopped like i thought it was. If i rev the motor over 1200rpm or so the noise gets higher pitched then goes away. Maybe i blew a noise filter or something? Either way if it doesnt stop ill just act like i dont know anything about it and send it back for repair. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Supergumby5000 5,000+ posts]

the amp is making the squealing noise?

May have damaged the power supply.

 

[I Like Waffle]

no its coming through the subs //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif