Car amp to be used as home audio amplifier

PGjunkie · Post by **PGjunkie** » Sun Jul 19, 2009 9:57 am

I don't know much about electronic, can anyone tell me how to calculate power use for car audio amplifier use as home audio amplifier?

AC is 110V
Watt rms of amplifier is 100 (50x2)
AC to 12VDC convertor

Thanks.

todd217 · Post by **todd217** » Sun Jul 19, 2009 10:07 am

what kind of amp and are you bridging it. with out knowing anything about the amp a would say a 40amp converter would be enough.

Post by **ttocs** » Sun Jul 19, 2009 11:20 am

look on the amp for the built in fuse. That is the maximum amperage that the fuse amp is rated for and you will need a power supply that will give that much current.

PGjunkie · Post by **PGjunkie** » Sun Jul 19, 2009 3:30 pm

todd217 wrote:what kind of amp and are you bridging it. with out knowing anything about the amp a would say a 40amp converter would be enough.

it is MS250. The fuse attach is 30A.

Post by **Eric D** » Sun Jul 19, 2009 3:56 pm

Regardless of what calculations you use, I would just like to say that I personally think a 15 Amp supply would work fine for that amp, unless you are really beating on the amp or driving some major subwoofers with it.

You might even be able to get by with a 10A supply, but the extra 5A would probably be worth it.

The only reason I say this is because I was just testing a MS250 least week and they don't seem to draw a whole lot of current.