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Old 25th June 2010, 04:47 PM   #1
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Smile Combining one set of amp controls to control two amps?

Hey guys,

I recently purchased two Rockford Fosgate P200.2 amplifier circuit boards to power my PA speakers.

I run the 12v amplifiers off a AC/DC inverter 15v/60a and plan on combining the amplifiers into one box, I have some extra amplifier heatsinks and four 12v fans to help with heat dissipation.

Here is a pic of one of the amps

Click the image to open in full size.

I assume I can just undo the solder on the controls of one amp and wire some into the other one? If anyone has some thoughts please advise
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Old 25th June 2010, 11:43 PM   #2
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i'm assuming you meant the potentiometers. If so, you would not want to combine them on to one potentiometer unless you replaced two single pots with a dual pot.
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Old 26th June 2010, 12:03 AM   #3
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What do you mean the pots?
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Old 26th June 2010, 05:54 PM   #4
Minion is offline Minion  Canada
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Pots are Potentiometers ,you know , the things you turn you controll the Volume , tone ect ?
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Old 26th June 2010, 07:44 PM   #5
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Yeah I understand that, I mean what is a dual pot? I assume two separate inputs but separated completely and the same knob controls the two circuits?
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Old 27th June 2010, 03:38 PM   #6
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a dual pot is basically two potentiometers that are controlled by one knob.
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Old 27th June 2010, 05:53 PM   #7
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Dual pots are what you want. Also make sure you get logarithmic (log) pots otherwise with a linear pot the volume will be low for 80% of the pot travel then increase rapidly, something which you don't want.
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Old 28th June 2010, 10:07 PM   #8
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Wow - what is up with those little boards that are attached to the output devices? So those get removed and the transistors attached to the heatsink? I have a hard time beliving that they would make an acceptable heat transfer medium. Are these surpluss boards? where did you get them.
Intresting plan, keep us informed
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