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78nautique78 
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Joined: November-10-2007 Location: United States Status: Offline Points: 51 |
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 Topic: stereo installPosted: December-29-2007 at 1:03pm |
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Hi guys.I have a 78 nautique. I'm going to install a sound system in it this winter. I've bought two amps, one which is 90 watts x 4 channels RMS. and the other one is 5oo watts x 1 channel RMS. my question is , what impact is this going to have on my electrical system? I've read on this site of people installing an extra battery, don't know if that will solve any problems. i've also read an upgrade on the alternator may help.any advice would be appreciated. Thanks, Mike
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Randy_in_Ohio
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Joined: September-13-2006 Location: N. Canton, OH. Status: Offline Points: 1891 |
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Posted: January-01-2008 at 9:10pm |
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Mike,
a lot of guys add an extra battery and put it on a switch so that they can isolate the starting battery while the engine is off and prevent getting stuck on the water with a dead battery. sometimes, if you have a lot of amps pulling a lot of power, you may want even more batteries, like two banks of two (four batteries total). IMO, it sounds like you would probably be fine with just a good battery and maybe one of those jump start boxes on board (just in case...) but if you want the luxury of not having to worry about a dead battery look into some of the battery management devices out there. they automatically isolate the battery when the engine is off, and switch over to the starting battery to start and then switch to both so that they are both charging while under way. Or, you can install a Perko switch and switch the battery manually. |
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behindpropeller
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Joined: July-31-2006 Status: Offline Points: 1810 |
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Posted: January-01-2008 at 9:39pm |
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I used to have 3 amps in my 86 pulling 10-20 amps. I could run it for 3 hours no problem without the boat on. I did take the battery back to wal mart every spring saying it was dead though.
Spending thousands of dollars on a high end system in a boat is a waste in my oppionion. Your biggest drawback is that you are working in an open air enviroment, unlike a car where your sound is "locked" inside of the car. Also plan on d*cking around with your stereo every 2-3 years because the moisture eventually makes everything act up from corrosion. Tim |
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