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  #1  
Old 12-04-2011, 03:25 PM
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Default bridging the 4x90

i've been trying to bridge my 4x90 to give my comps some extra power, but not successfully. i have it hooked up with the driver side 1st ch + 2nd - and passenger side 3rd + 4th -. im only getting sound out of my driver side speaker. what am i doing wrong.
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Old 12-04-2011, 03:28 PM
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look at the manual

the bridge channel should be labeled
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Old 12-04-2011, 03:30 PM
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There may be a switch for 2 channel mode

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Old 12-04-2011, 03:32 PM
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nope and nope lol. there is no labeling and the manual dosnt say how. there is no switch either
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Old 12-04-2011, 06:11 PM
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bump. trying to get this figured out to nite
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-aq 4x90
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Old 12-04-2011, 06:14 PM
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do you have all the rca inputs going in? you should all four rca inputs on the amp plugged in.
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Old 12-04-2011, 07:05 PM
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figured it out. the 2nd channel rca needs to go to the 3rd channel spot. but when its hooked up like this i get horrendous alt whine and noise. hooked it back up normal, no noise. why would it be doing this?
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-aq 1200
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Old 12-04-2011, 07:10 PM
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its usually a bad amp ground or rca ground . an old pioneer i used to have had the bad rca ground, some pioneers are known for that .
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Old 12-04-2011, 07:11 PM
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but there is no noise when its not hooked up like that. only when the 2nd ch rca is in the 3rd spot.
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Old 12-04-2011, 07:14 PM
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bad rca inputs on amp?
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