Powering a car audio amp at home... computer power supply?
#1
Powering a car audio amp at home... computer power supply?
i think thats how you do it, I just need to test and make sure a few amplifiers work properly , can I rig up an old computer power supply to test it? If so is there a link somewhere or any specific wire colors to use?
Thanks guys.
Thanks guys.
#2
yeah it could works, but u must have a very powerful PSU that can handle it, depending what amp u use, if you have a 400Wrms amp then you have to get a 600 or 700watt psu, or, check out the sticker on the 12V rail, what amperage is rated, my 500watt PSU have 28Amp on 12V so P=IV , 336watt max. For turning on the AMP you have to find it yourself.
#4
please dont use a power supply that you care about, or want to use in a computer.
ive burnt up about 4 power supplys doing this... they work for a while, but i was told that they dont operate properly if there isnt a load on the 3.3 and 5 volt lines. i guess they run hot or something... im no tech, i just know that its bad for them.
if you google for 12volt power supply you should be able to find lots of options, generally theyre cheaper than a decent quality computer psu.
ive burnt up about 4 power supplys doing this... they work for a while, but i was told that they dont operate properly if there isnt a load on the 3.3 and 5 volt lines. i guess they run hot or something... im no tech, i just know that its bad for them.
if you google for 12volt power supply you should be able to find lots of options, generally theyre cheaper than a decent quality computer psu.
#7
Originally Posted by belcom
use a car battery. that would be a much safer way both for your amp and power supply
I can get a hold of power supplys, what I need to confirm is that red is power and black is ground right? I can then use red again for the remote turn on.
I will only be powering them on for a few seconds, I am sure the pc power supplys should do the trick.
#8
Originally Posted by AAAAAAA
Yeah but I have no RCA output source near my truck.
I can get a hold of power supplys, what I need to confirm is that red is power and black is ground right? I can then use red again for the remote turn on.
I will only be powering them on for a few seconds, I am sure the pc power supplys should do the trick.
I can get a hold of power supplys, what I need to confirm is that red is power and black is ground right? I can then use red again for the remote turn on.
I will only be powering them on for a few seconds, I am sure the pc power supplys should do the trick.
computer power supply will simply fry as it doesn't provide enough current to run the amp. I tried that once with a deck and that's what happened. But an amp draws much more than a deck I think.
#10
I use a 12v supply out of a computer for all my amp testing....
if you are repairing amps it is a must to use a low current power source or you could end up burning up the new parts you just spent $100 on.....
for ghetto style car audio/home audio conversion... about a dozen power supplys in parallel and a small battery and you should be set.......
if you are repairing amps it is a must to use a low current power source or you could end up burning up the new parts you just spent $100 on.....
for ghetto style car audio/home audio conversion... about a dozen power supplys in parallel and a small battery and you should be set.......