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Old 11-26-2007, 04:40 PM
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car amp at home

I wanted to connect a car amp to my home speakers not permanently but just to test it and to learn something at the same time.
I have a 12 volt dc transformer which should work like a car battery and 4 speakers. The source will be coming from my computer. Please help me figure out how to wire it.
Here a picture of the back of the amp i have:
http://img407.imageshack.us/my.php?image=amppg5.jpg
Thanks in advance for any help.
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Old 11-26-2007, 05:39 PM
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I dont see a problem with it, keep in mind that most home speakers are 8ohm so you'll be sending them roughly half the power you'd expect.
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Old 11-26-2007, 08:33 PM
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Originally Posted by MTT
I dont see a problem with it, keep in mind that most home speakers are 8ohm so you'll be sending them roughly half the power you'd expect.
there's no problem i just need some help wiring it, for example the power is confusing cause if you have a dc transformer you have + and - and i'm not sure where to conect them, I dont want to fry them amp so i am asking for help.
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Old 11-26-2007, 10:54 PM
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Do you mean that your DC transformer has + and -, and you're not sure how to connect them to the + and - of your amp?

Do not connect anything!!! return all your equipment in it's original packaging to your retailer ASAP, and get a refund.
If they ask why, just tell them you're too $%^&**& stupid to own this type of equipment!!! JK, but I couldn't resist...I've been waiting for 8 years to use that line.

Seriously...How many amps or watts output does your transformer have?
You are going to need whatever the total of the fuses on your amp have, plus 10 amps, to be safe.
For example if your amp has 2x30 amp fuses, you should have a 70 amp power supply.
Connect the positives of the amp to the positive of the supply, connect the negative of the amp to the negative of the supply, and to the chassis of the computer.
All 120 volt equpiment should also be properly grounded with a 3 prong plug.
Turn it on and check for escaping smoke BEFORE connecting any RCAs.
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Old 11-26-2007, 11:16 PM
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A wall wart will work fine to power the amp up and test it out....... and the striped line should be +'ve......


just don't expect to get more then 10 watts of power from the amp.......
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Old 11-27-2007, 02:56 PM
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if your testing for fun i dont see why it wont work just try it out i would say.
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Old 11-27-2007, 04:29 PM
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I don't agree with the guy who posted 'the total of all fuses, plus 10 amps.

My amps have two 30 amp fuses. And reading the manual, the max power they can draw is 25 amps, average with music is 19 amps. (Music can never use rated power without clipping)
Pioneer puts a fuse on the ground side to protect stupid people who hook them up backwards.
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Old 11-27-2007, 04:54 PM
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my main question waht that the in the power section of the amp there is GND, Remote on and 12v+ I wanted to know how to power it. Should i conect the positive to 12v+, the negative to remote on and leave gnd empty?

And is the amperage very important? my source is 0.5 amps which i doubt is strong enough but once again i'm just trying to learn a bit so dont tell me forget about cause i wont get much power out of it.

Last edited by A_A_68; 11-27-2007 at 04:57 PM.
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Old 11-27-2007, 05:33 PM
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Originally Posted by A_A_68
my main question waht that the in the power section of the amp there is GND, Remote on and 12v+ I wanted to know how to power it. Should i conect the positive to 12v+, the negative to remote on and leave gnd empty?

And is the amperage very important? my source is 0.5 amps which i doubt is strong enough but once again i'm just trying to learn a bit so dont tell me forget about cause i wont get much power out of it.
If you're serious about the above, you really shouldn't be trying this at all, and im not trying to be an ***.

if you're trying to learn go to Basic Car Audio Electronics before you even touch a wire, spend two weeks reading there then go back to what you want to try.
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Old 11-28-2007, 11:12 PM
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yup, I gotta agree with the guy said, put it back in the box, take it back to the store you bought it from.
Buy an Ipod.
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