i have an 8" sub and a 200 watt 2 channel amp. For now, i just wanted to put this in my room. I have everything hooked up, but i need a power source for the amp. I've tried the ac-dc converters at radio shack but theya re only 1500 mA and the subs keep cutting on and off. What can i use that has ample power and will change 120v to 12 v to power the amp?

 

Partsexpress.com has power supplies 12vdc up to 40 amps (50 amp peak):

http://www.partsexpress.com/webpage....ctGroup_ID=427

 

is 50 amps enough to power the amp???

 

look at the fuse rating and you tell us

 

i just hacked a cpu power supply, worked fine

 

DITTO!!!!!!!!!!!!!!!!!!!

 

So what does one use for the remote wire in this type of setup?

 

Lightswitch

No need for a remote turn on, just use the same power feed you have from your ac-dc converter, or computer power supply.

 

Can someone post a link to a "how to" for the hacked cpu power supply if such a link exists?

 

ill post one if u want ur house to burn down in the process

 

This posts brings back memories for me . I did this when I was in high school (maybe 10th grade). We had a laundry room in the back yard (attached to another small house/garage thing back there). My friend's brother had a "burned out" Alpine he was going to throw out. I then ended up fixing it by using strands of speaker wire and solder on the burned part of the circuit board. I used that, a small amp and two 6x9's in there. Was not very loud but worked . Oh I also used my dad's power converter .

 

so basically take the plug from a cpu and wire it to the amp?

 

How is it that other are using the cpu power supply without a problem?

 

oh man, i'm just seeing a lot of fire accidents waiting to happen...

 

Not that easy. Gotta know which wires are hot, gound, etc.

 

haha i think the others did it alright, i dunno i would rather not risk burning my house down just to power a sub in my room lol.

 

Since my car is out of commission, I've hooked up my whole active setup (except sub) in my house. It's running off of an IOTA 90 amp power supply and an optima red top.

 

yes...i know this. i have a voltmeter for that. But am i thinking about the right thing?? Its the black plug which plugs from my cpu to the outlet?

 

You'll probably blow your houses fuse box if you plug that black plug into the amp. Don't be crazy.

 

OK...i'll wait for a write-up or sumthin cuz i'm not sure what cpu power supply is being talked about.

 

Could we use a battery charger hooked up to like an optima deep cycle to run a system? Or will the charger have a tough time maintaining the battery?

 

lmaoooooooo me 2

 

just buy a friggin house sub from best buy for 150 bux

 

I have also hacked PC power supply for similar projects. However, if you use a PC power supply, make sure you check the supply's power ratings carefully, don't just look at the total wattage. An PC power supply has a 3.3V, a 5V and a 12V rail...yellow wires being the +12V. The rating for the 12 volt rail of a 300W power supply may be as little as 12amps (or less). Also, computer power supplies often require a minimum load of an amp or two on the 5V rail in order to operate.

 

couldnt you just wire it to a home reciever?

 

a lot of home recievers aren't stable below 8 ohms (which is the nominal for a lot of home speakers)

 

the black wires are ground and the yellow wires are 12volt(in general)

 

yeah my Acoustic Reference massive studio speakers are only 8 ohms...but you would think they would be less considering the power...

 

My Monitor Audio towers are 6-ohms (yeah, that sux, but the speakers are absolutely amazing). Finding a receiver that will run them without frying is a little more difficult.

 

Well its more about the amp's output as far as home audio goes anyways.

 

It shouldn't be that hard to find an amp that will go down to 4 ohms and run off of 110v. Just look for a high current pro audio amp....