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Boat radio circuit amperage

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Old 04-26-2011, 01:31 PM
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Default Boat radio circuit amperage

For those that know off the top of your head, how many amp circuit was your boat's radio on from the factory? TIA!
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Old 04-26-2011, 03:24 PM
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I think mine is on a 10A breaker.
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Old 04-26-2011, 03:50 PM
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I have a 20 amp breaker on my head unit and separate breakers and relays for everything else.
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Old 04-26-2011, 04:18 PM
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Have an JVC HU right in front of me. It has a 10A use on the back. Just reordered a different JVC HU, that one has a 15A fuse. No idea why the difference as they both are same specs.
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Old 04-27-2011, 09:34 AM
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Thanks. Was going to order something and it stated the head unit had to be on a 15A circuit. Can't get to the boat until this weekend so was curious what most are set up on.
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Old 04-28-2011, 12:34 PM
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I don't think I've ever seen a HU that would actually draw 15 amps but you should be good to go anyway since most builders use 15 or 20 amp circuits.
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Old 04-28-2011, 12:48 PM
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Quote:
Originally Posted by mlb75 View Post
I don't think I've ever seen a HU that would actually draw 15 amps but you should be good to go anyway since most builders use 15 or 20 amp circuits.
The head unit is not the draw I'm concerened with. I was going to try the Alpine Power Pack which raises the RMS rating from 18W X 4 to 45W X 4. Gets pretty good reviews for the most part but requires the stereo's existing circuit to be 15A or you have to run a separate power/ground wire. If you are going to do that you might as well run a "real" amp. This plugs and plays behind the head unit with no additional wiring needed as long as the existing circuit is 15A or greater.
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