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the post i was laughing at was about something that has nothing to do with the question.

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had the same problem before, its the ground.

and your talking the woofers are doing like a 1hz cycle, variable to 5hz cycles.

Just change your ground and you should be good.

1997 Pontiac Grand Am SE

Broke stock Head Unit

Stock speakers suck

-if I get a job, it gets 2 SA 8s in a 2.5cube box (roughly 2 cube with the port and woofers in)-

-oh, and a new HU and some speakers that dont suck. and possibly a new muffler and tint job (previous owners tint is smudging in the back, if you know how to get tint off a window without damaging the heating stuff, let me know!!!)-

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had the same problem before, its the ground.

and your talking the woofers are doing like a 1hz cycle, variable to 5hz cycles.

Just change your ground and you should be good.

x2. i have also seen this happen from crappy ground.

more with bad signal but i can happen from bad ground.

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x2. i have also seen this happen from crappy ground.

more with bad signal but i can happen from bad ground.

I know this is offtopic, but AF ftw.

im AFJROTC currently, but im gonna go into the force after HS :D

1997 Pontiac Grand Am SE

Broke stock Head Unit

Stock speakers suck

-if I get a job, it gets 2 SA 8s in a 2.5cube box (roughly 2 cube with the port and woofers in)-

-oh, and a new HU and some speakers that dont suck. and possibly a new muffler and tint job (previous owners tint is smudging in the back, if you know how to get tint off a window without damaging the heating stuff, let me know!!!)-

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I know this is offtopic, but AF ftw.

im AFJROTC currently, but im gonna go into the force after HS :D

yeah its a cake job for the most part.

what job you trying to do?

i'm doing hydraulics on c-130's. love it.

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i ahve a pioneer deh 2000mp head unit and a old kenwood 2channel amp. i hooked them to my subs and all it does is pulse in and out. no sound no anything just pulse in and out. i set the gain all the way down and all the way up and still nothing. any ideas???

had same problem, amp was on a metal bar and was causing this. slow pulse in and out like a heart beat but not sound would come out.

2 AQ 10'' HDC3 copper subs

1 3500d AQ amp

146.3db on TL with stock electrical in single cab truck at 32hz

RESULT: 1st place at comp, 3rd overall out of 20 cars

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