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Old 12th November 2007, 03:38 PM   #1
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Default how to control 6 channels using one pot

I have 6 amplifiers to drive 6 speakers.

Is there any way to control all the 6 channel volume using just one pot?

Is there any other way( that is used in modern day home theater systems) to add a volume up and down key to increase or decrease the volume of 6 channels?
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Old 12th November 2007, 04:30 PM   #2
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They make 6-gang potentiometers... they're expensive though.
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Old 12th November 2007, 06:58 PM   #3
Dan2 is offline Dan2  South Africa
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check out this site:

http://www.princeton.com.tw/webSite/...t_level2_id=17
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Old 13th November 2007, 06:46 AM   #4
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though it was helpful but PT2255A IC is not available.
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Old 13th November 2007, 11:06 AM   #5
Dan2 is offline Dan2  South Africa
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have you ever worked with opto-isolators??

i don't know how to paste a link to this thread, but this is what its called:

"Lightspeed Attenuator a new passive preamp"
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Old 13th November 2007, 11:38 AM   #6
ttan98 is online now ttan98  Australia
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Default Re: how to control 6 channels using one pot

Quote:
Originally posted by Tambourine Man
I have 6 amplifiers to drive 6 speakers.

Is there any way to control all the 6 channel volume using just one pot?

Is there any other way( that is used in modern day home theater systems) to add a volume up and down key to increase or decrease the volume of 6 channels?

what about the good old fashion alps pots, look up the ebay on alps pots, you will find it.

OR

See this site, on his implemenation for 6 channel vol. for DCX 2496. you have to adapt for your condition.

http://www.linearaudio.nl/
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Old 13th November 2007, 03:09 PM   #7
Paswa is offline Paswa  India
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opto-isolators, I worked with that, but how to use controlling volume??

no.no, i've found it here
http://www.diyaudio.com/forums/showthread.php?threadid=80194
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Old 13th November 2007, 03:20 PM   #8
Paswa is offline Paswa  India
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the none of the "alps pots" in ebay are for 6 channels, they r all stereo.

check it http://search.ebay.com/search/search...ots&category0=
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Old 13th November 2007, 04:14 PM   #9
paulb is offline paulb  Canada
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Look at the Maxim DS1802
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2778
You can probably use 3 of them for 6 channels. Check their app notes.
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Old 13th November 2007, 04:44 PM   #10
banana is offline banana  Hong Kong
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My inelegant approach should work too. But I don't think you will choose to get into the trouble, unless you are hardware enthusiast

Banana's Pre - inelegant way to contrl vol
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