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Old 13th June 2006, 05:39 PM   #1
Join Date: Aug 2005
Default PC speakers amp runs ac?? Does DC work?


im not sure if this is the right section but i have a 5.1 creative p5800 set of speakers but no powersupply with it. it takes a 13.5v ac input but i was wondering if i gave it a 13.5 DC input, would it be ok??

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Old 13th June 2006, 06:00 PM   #2
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Assuming it has a fullwave bridge inside, Yes.
It will even "auto correct" for polarity,doesn't matter which polarity the connector tip is.
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Old 13th June 2006, 06:09 PM   #3
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what if i fed it 12v or something slightly higher like 14 or 15v. would it be ok on those??

just wondering as i have a spare 12v dc and a variable 14v-20v.

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Old 14th June 2006, 05:43 AM   #4
preiter is offline preiter  United States
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You could try this..

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Old 14th June 2006, 06:40 AM   #5
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will a less voltage, 12v dc psu **** the speakers up or will the higher voltage do that?
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Old 14th June 2006, 06:49 AM   #6
Wynand is offline Wynand  South Africa
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Maybe you should open it up and see what the PSU looks like on the inside. Then you'll have a better idea of what you need to do.

If it needs 13.5 volts, the amp could need 13.5 x 1.414 = +-18VDC to run. Try to get the voltage specified.

Maybe try and get a transformer with a 12VAC secondary.
That'll be closer than 12DC and then you don't need to mod it.
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Old 14th June 2006, 07:12 AM   #7
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U can connect 10 to 18 volts DC supply .Most creative incl mine has got rectifier and filter capacitors inside the main unit..the adaptor only has a step-down transformer.i have used 12volt car battery to power up my PC speakers which doubles as back-up power source for the UPS..
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Old 14th June 2006, 08:19 AM   #8
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Old 14th June 2006, 10:35 AM   #9
AndrewT is offline AndrewT  Scotland
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Hi Pinky,
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