Camping Stereo

I brought it to RenFest last weekend. It poured down rain all weekend, I'm glad I tried to made this thing water-tight. The only issue I had was the waterproof speaker connectors. The plastic I used for the top is actually too thick for the panel mount part, I had tried counter-sinking the hole to make it fit, but one of them fell out of its hole. But because almost everything inside is water-resistant, it continued to work fine, even full of water.

I estimate we used it for about 20 - 30 hours before the batteries got down to about 10v. I planned on taking the top off and letting it dry out, but it was already dry inside the next day after getting back.

I bought way too much wire, and overkill waterproof connectors, but it all works.

I still need to drill a big 3 1/4 Inch hole for the control panel, and attach the voltage meter to something.

I tried adding another battery, but I think it was bad. I swear I checked the voltage(although it may have been months ago), and attached it correctly, but it is showing 0-1v now. It was most likely bad, I know its from an old, failed UPS.

I also tested out using my sub on the 3rd channel, and the two old 6.5 inch speakers on the 4th. It sounds good, but I think it could use more bass. I don't know if bridging the second two channels will make is sound better, or fry my amp, so I haven't tried it yet.

So after using the stereo, and running the battery down, way too far, I figured I may need to put in some sort of low voltage shut off. I was also planning on wiring up the voltage meter, but I cannot find it. So I bought another one, and while I was at it, I bought 2 of these waterproof plugs, for the speaker connections.

They are overkill, rated at 30A at 500v AC, but they should work.

So now I still have 2 audio channels available, I think it could use a little extra bass. I have an old Sub, and a low-pass filter. I was thinking about attaching 2 6.5 Inch speakers and the sub on the same two channels, but I’m not sure how that will work yet, I am not sure how this amp will handle being pseudo bridged, I am good with simple electronics but audio stuff sometimes baffles me.

So my thinking is, I will connect the second left and right channels to the two 61/2 inch speakers, and the low-pass filter then to the sub, making a weird 3-way(or 2-way) mono speaker from a stereo connection. I guess i will just have to try it and home it does not blow up.

Kinda like this:

This is an old Subwoofer from a 2.1 computer speaker system, the main board eventually fried, so I yanked it out, and wired straight to the speaker, and taped over the holes for input/speakers/stuff.

I have the main parts wired up, tested it last weekend. I had a few friends over and we were playing music all night, I hope we didn't piss off the neighbors too much. Battery lasted all night, and part of the next day, although I hadn't charged it for a few months before testing, but it still had a good charge.

The system sounds good.

[PICS OF CURRENT PROGRESS]

I cut the acrylic with a hack saw, so its not perfect. It was a piece of scrap i found in my dads garage, and it was late at night so I didn't want to use a power saw. I plan to sand it down and try to make it look better.