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| 12 v DC power supply used with car audio amp? |
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| Luckydevil:
Don't use the power supply in your pc for powering an external stereo. Just buy a seperate PC power supply and use the yellow (+12v) and black (ground). Here ya go... $20 and 25 amps on the +12v line. http://www.newegg.com/Product/Product.asp?Item=N82E16817170010 Depending on what else you have in your cab (P360's, etc.), you can also use the +5v line if need be. |
| MYX:
--- Quote from: mccoy178 on May 13, 2006, 08:18:18 pm ---MYX, this is no help, but I got kind of lucky in this department. I have two arcade power supplies that have 12v and 5v that I plan on using in my cabinet. (Actually one in the cabinet, but I was too lazy to correct that). Anyways, when I originally found these, that was one of my first planned uses. --- End quote --- I do have a switching PS I pulled from a Dynamo. It is a little hot on the +5 but I am not sure about the +12. What kind of amparage do they supply? --- Quote from: Luckydevil on May 13, 2006, 08:26:52 pm ---Don't use the power supply in your pc for powering an external stereo. Just buy a seperate PC power supply and use the yellow (+12v) and black (ground). Here ya go... $25 and 25 amps on the +12v line. --- End quote --- No, I had no intention of sharing the Power supply. I was just trying to see what you meant. I have a PS in a PC down stairs that the PC is not working(would not take a new OS). I went round and round on a previous thread trying to get it working. It was to be my MAME computer. I can pull that PS. So great, I went from no PSs to 2 in one thread. This is great. |
| M3talhead:
Do like these guys said. Get an additional computer power supply to provide juice to your amp. You need to test it though, some P.S. manufacturers build a "signal check" into the unit that requires a small draw to come from the green wire in a 20-pin mobo connector before electricity will flow to the rest of the connectors. If you end up testing yours and determining that it has this kind of circuit built in, you can short the green wire in the 20-pin connector to any black wire (like the one next to it) and force the unit to function as "always on". |
| MYX:
Good to know. Thanks Guys!!! |
| fatfingers:
--- Quote from: M3talhead on May 14, 2006, 03:10:38 am ---Do like these guys said. Get an additional computer power supply to provide juice to your amp. You need to test it though, some P.S. manufacturers build a "signal check" into the unit that requires a small draw to come from the green wire in a 20-pin mobo connector before electricity will flow to the rest of the connectors. If you end up testing yours and determining that it has this kind of circuit built in, you can short the green wire in the 20-pin connector to any black wire (like the one next to it) and force the unit to function as "always on". --- End quote --- I found that cutting a small paperclip to The Right SizeTM and then inserting it into the green and black "holes" on the power supply connector worked well. That way if you ever want to use that power supply for something else you still have a working connector on the power supply. |
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