pulsing!?!?

[SAVAGE SOUND 10+ year member]

today i took my amps off the amp racks in my trunk to finish them a bit more. after i had them all back together and mounted and wired up i shut the trunk and turned every thing on to enjoy! as soon as i turn the subs on they start pulsing hard! mind you this is before the music started playing (before the intro) i shut every thing off checked the wiring (even tho i didnt change or rewire any thing) i turned down the gain and bass boost almost all the way so that it dosent pulse as hard, but now it too dang quiet! when i change stations, music source, cd track... it pulses hard for like 4-6 pluses then goes back to normal.?.? did i some how fry the thump protection thing? or is there somsort of built up energy in the rca's? please help its getting nice out and i needs my music!!!!!!

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[Tek 10+ year member]

I know my speakers used to pulse because I didn't have a good ground. Maybe check that.

 

[SAVAGE SOUND 10+ year member]

did they pop when you switched stations? did the pulse go away after a few sec's?

 

[Tek 10+ year member]

They pulsed when I would try to listen without the car on, just running off the battery.