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-   -   PC speakers amp runs ac?? Does DC work? (http://www.diyaudio.com/forums/power-supplies/81416-pc-speakers-amp-runs-ac-does-dc-work.html)

NeMeSiS_singh 13th June 2006 05:39 PM

PC speakers amp runs ac?? Does DC work?
 
Hi,

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??

cheers

DigitalJunkie 13th June 2006 06:00 PM

Assuming it has a fullwave bridge inside, Yes.
It will even "auto correct" for polarity,doesn't matter which polarity the connector tip is. ;)

NeMeSiS_singh 13th June 2006 06:09 PM

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.

cheers

preiter 14th June 2006 05:43 AM

You could try this..

http://www.goldmine-elec-products.co...?number=G15566

NeMeSiS_singh 14th June 2006 06:40 AM

will a less voltage, 12v dc psu **** the speakers up or will the higher voltage do that?

Wynand 14th June 2006 06:49 AM

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.

sivan_and 14th June 2006 07:12 AM

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..

pinkmouse 14th June 2006 08:19 AM

:cop:

NeMeSiS_singh, are you going to reply to the posts about the flat panel LCD you sold, or deal with it off line?

AndrewT 14th June 2006 10:35 AM

Hi Pinky,
shopping?


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