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Old 9th October 2007, 02:31 PM   #1
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Join Date: Nov 2005
Default Control 2 T Amps with one pot

Hey guys, I know t amps are a bit 'yesterday' but I got a quick question...

Is there a simple way of using 2 T amps, to drive 2 channels comprised of 2 fullrange drivers per channel.

E.g. I'm planning on some speakers that use 2xfull range drivers in each side. These are each 4 ohms. As such, I was thinking of connecting 1 output from the amp to 1 driver each. Therefore 2 amps = 4 drivers.

Thats easy enough, but how can I control the volume from just one knob? Maybe modify in a 4 gang pot? Or can a 2 gang pot somehow be used?

(obviously a preamp would do this task, but i'm trying to avoid this)
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Old 9th October 2007, 04:24 PM   #2
Nordic is offline Nordic  South Africa
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you can buy 4 and 5 and even higher gang pots... expensive and scarse... see some one e-bay occasionaly.
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Old 9th October 2007, 05:07 PM   #3
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Join Date: Mar 2006
Location: Great Yarmouth, UK
Could you stick a buffer after a dual pot and then have a parallel outputs after said buffer?

PHP Code:
left in ] --- [ volume pot left ] --- [ buffer left ] --- [ out left 1 ]
out left 2 
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Old 11th October 2007, 04:24 AM   #4
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Not sure if this would work ... and real expensive but ....
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Old 11th October 2007, 11:07 AM   #5
OzMikeH is offline OzMikeH  Australia
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Join Date: Mar 2007
Simplest method, Bypass the pots in the T-amps. Connect the inputs of left and right for each amp together on the SOURCE side of the capacitors, not the amp side. Use one conventional volume pot. Each channel to each T-amp.

Rube Goldberg method: Pull apart an old scanner or a printer. Use the toothed belt and a couple of toothed wheels to couple the original pots together. Move amps apart until belt is tight. Put handle on middle of belt, move handle.

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