Questionmark, i have a soundstorm vanquish 840 amp and 2 12" pyramid royal blues. i would like to hook these up in my dorm room for some late night thumping. how would i go about this? we would be going thru a computer. if you need more info, i can give you more.
Answerahh!! I love running car subs at home, in fact I wouldn't have it any other way!! I have 2 home theaters in my house with a total of 7 car audio subs between them!
Using the speakers is the easy part. powering a car stereo amp in a home/dorm room is the hard part.
This amp has a 25 amp fuse so your power supply that runs it should be able to put that much out. a 25 amp power supply isnt too terribly light duty but it's not huge so we may be able to run it.
there are basically 4 options here.
Option 1:
get a power supply that can run the amp by itself
Option 2:
get a power supply that may be a little small but with a capacitor can run the amp nicely
Option 3:
get a power supply that is very small that just keeps a charge on a car battery which runs the amp
Option 4:
dont use a car amp, get a PA amp that runs off regular outlet juice that will run those subs
Each option has pros and cons. here's a quick breakdown of them.
Option1 a power supply that can comfortably put out 25 amps may be expensive. radioshack sells one for 100 bucks and I doubt it would run 25 amps before overheating, it's probably made for about 15 continuous and 25 at a surge which might work.
Option2 is pretty much the same problem. the radioshack 25 amp model along with a capacitor would run your amp great but now you're spending 100 bucks on the power supply and another 50 to 80 on a capacitor.
Option3 is dangerous. and its not cheap either cuz car batteries are at least 50 bucks, plus if you thump until its dead you'll have to wait for it to charge back up before you can thump some more. car batteries dont like going dead either and will be quickly ruined by this. an easy fix for that is to use marine batteries which can be discharged and rechared without damage but now you're talking 80 bucks for a decent one and you still need at least a 50 buck power supply.
option 4 is definatly the best but you cant tough a good PA amp for under 300 bucks. I have 3 Behringer EP 2500 amps runining my home theaters. they are rated for 2500 watts peak and cost $325 each.
you may get away with a good computer power supply running the amp. I've had good success with this method. this one:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=71960...
is $43 bucks after rebate and is rated for 35 amps at 12 volts wich should be perfect. you need to exceed the amp rating since these power supplies will shut off when they see surges which your amp will make.
Think over the options and let me know what you want to do. I'll be happy to help you wire the computer supply if you want to go that route.
