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Old 07-01-2012, 15:07   #31
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Location: Juneau, Alaska
Boat: Prout Snowgoose 37
Posts: 105
Re: Sailboat Ipod Stereo

hellosailor-

I sealed up the box and all openings completely with a bit of silicone. It is completely watertight, so no worries about corrosion. I do plan on adding some dielectric grease to the external connectors when I hook up the wires on the boat to prevent corrosion.

I hooked it up at home, and it was plenty loud with a pair of sony home theater speakers, but did begin to distort when pushed really hard, as expected (but it was louder than a comfortable volume in our living room anyway - you had to shout to be heard.). This was with an 18V source, drawing .2 amps according to my multimeter. With the more efficient speakers I have on the boat, it should do very well (enough to blast you out of the cabin).

It also produced next to no heat (amp chip didn't even get warm playing for 15 minutes). The amp doesn't even require a heat sink as it is so efficient and fairly low power.

I'm happy with the little project!
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Old 23-03-2015, 12:55   #32
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Boat: Finnsailer 38
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Re: Sailboat Ipod Stereo

Are there any new suggestions for this three years later ?

Thanks,
JM.
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Old 23-03-2015, 13:04   #33
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Re: Sailboat Ipod Stereo

I'm still using my setup listed above, and it works great in the boat as is. One modification I did over this winter is to add a switch to switch between cockpit and interior speakers. I then added a pair of sound transducers for the cockpit. You can see the ones I used here:

https://www.parts-express.com/dayton...8-ohm--295-232

They are installed behind the fiberglass seat backs (they just stick on with 3M VHB tape) so are invisible, completely waterproof as there is no penetration whatsoever, and frankly sound pretty darn good. Not as good as a full set of speakers would, but about 85% as good. They aren't terribly efficient, but still get plenty loud to enjoy while sailing or sitting at anchor. It was a fun experiment, and I'd recommend it.
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Old 23-03-2015, 13:08   #34
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Re: Sailboat Ipod Stereo

I have a Bose Soundlink mini speaker and am happy with it
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