amplifier cuts off with high volume

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bahama_papa

Member - Posts: 3

Joined: July 13, 2009

Posted: July 13, 2009 at 12:00 PM / IP Logged

Okayheres the problem my head unit is a 200w (50w per channel at 4 channels) which is only pushing my 4 front tweeters (only 2 channels im using on those cuz they are still stock). My Amplifier is 1000w 4 channel (250w per channel) which is handling 4 speakers.. 2 front door and 2 rear. The front door is 350w each and the rear is 700w each. At first the Head unit was turning off when i took the volume up to 8 but my volume goes up to 30MAX, that was happening because my battery was dying and the engine wasn't running. I jumped the battery and had the car running.. the Head unit stays on but now the amplifier goes off when the volume goes to 10 What could be the problem??

yimke

Copper - Posts: 417

Joined: June 23, 2009

Location: Nebraska, United States

Posted: July 13, 2009 at 12:47 PM / IP Logged

Where do you have your gain set on the amp?

bahama_papa

Member - Posts: 3

Joined: July 13, 2009

Posted: July 13, 2009 at 1:05 PM / IP Logged

The gain is set to about 3/10

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: July 13, 2009 at 1:10 PM / IP Logged

Your problem is most likely any or all of the following: system voltage dropping too low, loudspeaker impedance is too low, amplifier gain is too high. When the amps turn off, what is your system voltage? What is the load on your amp? Your gain is probably not set correctly, but you need to answer those questions first...

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ianarian

Copper - Posts: 516

Joined: April 24, 2009

Location: California, United States

Posted: July 13, 2009 at 1:12 PM / IP Logged

Amp brand?

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bahama_papa

Member - Posts: 3

Joined: July 13, 2009

Posted: July 13, 2009 at 3:57 PM / IP Logged

The Amp is a Powerbank p.1000.. I just went through isolating the speaker wires and came to find out something is wrong with either one of the channels or the speaker wiring. when i took it out the amp stayed on even though i took it up to 20 which was suprising. So i think i will have a look at that wiring, but thanks for the help guys

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: July 13, 2009 at 5:08 PM / IP Logged

Yep. Speaker wire shorts out = amplifier overload. You still need to set your gain properly. Check the Hot Topics forum...

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amplifier cuts off with high volume

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