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Old 03-17-2004, 03:10 PM   #1
EL Vap133
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Default How to hook up system with no car? Stereo/amp gurus, help!

Ok, a friend of mine cannot sell his old amps/subs, speakers/stereo. So what he wants to do is hook all of it up in his garage. Now, other than the easyness of the wires to the amps/speakers and such, how can he go about getting power to the components other than using a car battery? Thanks in advance for your help guys. Click the image to open in full size.
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Old 03-17-2004, 03:11 PM   #2
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Default Re: How to hook up system with no car? Stereo/amp gurus, help! (EL Vap133)

My friend knows how, but he's at work right now. If nobody answers it for you by later tonight I'll ask him.
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Old 03-17-2004, 03:11 PM   #3
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AC/DC Converter
Similar to your computers power supply.
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Old 03-17-2004, 03:20 PM   #4
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Default Re: (psi420)

Quote:
Originally Posted by psi420
AC/DC Converter
Similar to your computers power supply.
Just an AC/DC convertor? No wiring needed?
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Old 03-17-2004, 03:24 PM   #5
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Default Re: (EL Vap133)

Quote:
Originally Posted by EL Vap133

Just an AC/DC convertor? No wiring needed?
Well you need to wire the AC/DC converter to the amp.

120vac convert to 12-14v DC plug into amp..if he is using his head unit he has to power that too
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Old 03-17-2004, 03:30 PM   #6
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Default Re: (UCBGSR)

Quote:
Originally Posted by UCBGSR

Well you need to wire the AC/DC converter to the amp.

120vac convert to 12-14v DC plug into amp..if he is using his head unit he has to power that too
Ok thanks, I will forward him this info to see if it makes sense to him, lol. Click the image to open in full size.
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Old 03-17-2004, 04:38 PM   #7
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it depends.. you can get a 120v ac -&gt; 12v dc converter.. and it may work for a headunit/speakers alone.. the hard part is getting a 12v output with the correct amps.. like typically a head unit can draw 5-15 amps.. if your converter doesnt output that much it can cause distortion. it is even worse if using an amplifier for subs.. i know that my rockford amp draws damn near 60 amps.. its gonna set you back several bills to get a converter with that kind of output
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Old 03-17-2004, 04:50 PM   #8
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Default Re: (green91)

If it's in his garage why not use a car battery? I can understand if you're setting this up in the house or something though
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Old 03-17-2004, 04:52 PM   #9
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Default Re: (green91)

Quote:
Originally Posted by green91
it depends.. you can get a 120v ac -&gt; 12v dc converter.. and it may work for a headunit/speakers alone.. the hard part is getting a 12v output with the correct amps.. like typically a head unit can draw 5-15 amps.. if your converter doesnt output that much it can cause distortion. it is even worse if using an amplifier for subs.. i know that my rockford amp draws damn near 60 amps.. its gonna set you back several bills to get a converter with that kind of output
Oh, I didn't know that. Damn I swear I want to take some electrician classes! Thanks for your help, I will let him know! Click the image to open in full size.

Quote:
Originally Posted by michaelOlson
If it's in his garage why not use a car battery? I can understand if you're setting this up in the house or something though
Wouldn't a car battery only last so long after a while?
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Old 03-17-2004, 04:52 PM   #10
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Try they audio section... they helped me with something similar in there.
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Old 03-17-2004, 04:53 PM   #11
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Default Re: (eL)

Quote:
Originally Posted by eL
Try they audio section... they helped me with something similar in there.
Oh ok, I will post a link to this in there, thanks! Click the image to open in full size.
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Old 03-17-2004, 05:15 PM   #12
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one possible solution would be to take an a/c motor and an alternator and run a belt between them.. using the correct size pulleys you could rig up a generator of sorts.. the motor wouldnt even need to be very strong.. and just run it to a battery. may be a good project if your bored lol, would still be cheaper than a converter
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Old 03-17-2004, 05:19 PM   #13
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Default Re: (green91)

Quote:
Originally Posted by green91
one possible solution would be to take an a/c motor and an alternator and run a belt between them.. using the correct size pulleys you could rig up a generator of sorts.. the motor wouldnt even need to be very strong.. and just run it to a battery. may be a good project if your bored lol, would still be cheaper than a converter
LOL!! That sounds like some straight MacGuyver ****! Click the image to open in full size.
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Old 03-17-2004, 05:48 PM   #14
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Default Re: (green91)

Quote:
Originally Posted by green91
it depends.. you can get a 120v ac -&gt; 12v dc converter.. and it may work for a headunit/speakers alone.. the hard part is getting a 12v output with the correct amps.. like typically a head unit can draw 5-15 amps.. if your converter doesnt output that much it can cause distortion. it is even worse if using an amplifier for subs.. i know that my rockford amp draws damn near 60 amps.. its gonna set you back several bills to get a converter with that kind of output
I looked into that before. An AC-DC converter big enough to crank out 30 amps is next tompossible to find. And even if you can find one it's probably gonna set the guy back an easy grand. Not worth it.
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Old 03-17-2004, 05:51 PM   #15
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Default Re: (EL Vap133)

Quote:
Originally Posted by EL Vap133
Wouldn't a car battery only last so long after a while?
oh yea I forgot I have a battery charger in my garage too...
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Old 03-17-2004, 06:42 PM   #16
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i doubt youre gonna want to leave a battery charger running that long! i thought the motor/alternator thing would be fun to make if i got really bored..
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Old 03-17-2004, 06:49 PM   #17
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Default Re: (michaelOlson)

My friend and I used to use a Car battery charger hooked up to a battery and then to the system. It worked awesome, with no problems.
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Old 03-19-2004, 02:57 PM   #18
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Default Re: (EastSideImports)

1. You could build yourself a power supply one large enough to supply 100A worth of current would probably set you back $200. This assumes you have the know how to build one. I built one for a friend so he could test amplifiers.

2. You could purchase one, it would probably set you back at least $1500 for one that could supply that current

3. You could go in a rewire the amplifiers to run on 120, which really isn't that hard. They usually have +/- 60V rails. This assumes you know what you are doing.

4. You could rig it like mentioned above which is probably your best option.
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Old 03-19-2004, 04:29 PM   #19
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you'd need a dc power supply and those are expensive. Just get a car battery and a trickle charger.
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Old 03-19-2004, 04:37 PM   #20
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Default Re: (darkvibe)

I'll pass over the info to him, thanks a lot guys! Click the image to open in full size.
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Old 03-19-2004, 05:22 PM   #21
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Default Re: (EL Vap133)

if you have a rv salvage yard near by check with them. i got a 50amp 120vac-13.4vdc converter out of an old rv. might be able to find something like that.
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