new amp, new sound, whining

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walty220

Copper - Posts: 75

Joined: January 15, 2004

Location: United States

Posted: April 02, 2004 at 11:29 PM / IP Logged

hey guys, today i unhooked my he2 and 401s amp because my subwoofer blew, and hooked up a kicker kx150.4 to my 4x10s and 3.5s. It sounds incredible with the car off, but as soon as its turned on i get static and a whine, its rpm related. I know there are filters of some sort applicable for my problem... any pointers? thanks

1983 Oldsmobile Hurst/Olds

--------------

Pioneer Premier DEH-P360

KICKER K35 & K410 Speakers

KICKER KX150.4 Amplifier

Rockford Fosgate PUNCH 1200W Amplifier

Rockford Fosgate PUNCH 800W 12" HE2

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beav

Member - Posts: 14

Joined: February 18, 2004

Posted: April 02, 2004 at 11:33 PM / IP Logged

i had that same problem with my amp too. I just hooked up an RCA cable with a ground loop isolator right on the output of my cd player before the amp and that worked for me.

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walty220

Copper - Posts: 75

Joined: January 15, 2004

Location: United States

Posted: April 02, 2004 at 11:59 PM / IP Logged

Describe the sound that was coming out of your speakers please. Before the amplifier, like in the trunk... or right off the cd player, hence, behind the dash?

1983 Oldsmobile Hurst/Olds

--------------

Pioneer Premier DEH-P360

KICKER K35 & K410 Speakers

KICKER KX150.4 Amplifier

Rockford Fosgate PUNCH 1200W Amplifier

Rockford Fosgate PUNCH 800W 12" HE2

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Ravendarat

Platinum - Posts: 2,806

Joined: February 23, 2004

Location: Canada

Posted: April 03, 2004 at 12:07 AM / IP Logged

Its ground noise. Its a good chance you have a bad ground and just couldnt hear the high pitch wine before because its outside the frequency response of the subwoofers. Reground the amp to an unpainted piece of metal and make sure its screwed down tight. That will probally fix your problem and save you money because you wont need the filter.

double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

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Clean Install

Silver - Posts: 446

Joined: January 03, 2004

Location: United States

Posted: April 03, 2004 at 1:06 AM / IP Logged

Ravendarat, is right save your money, all a ground loop isolator is, is a band-aid for a problem that can be a simple fix, simply check your grounds to make sure that they are grounded well , especially make sure there is no paint, an have your ground, grounded to the chassis

If we learn from each success and

each failure, then we can improve ourselves

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new amp, new sound, whining

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