Well technically it is a Mobile audio system
I am going to build a portable jukebox.
It will consist of 2 Vifa P17WJ00 6.5's, 4 old school Lanzar DCT 1 inch silk tweeters "already had them", and a simple 6th order crossover. I will power it with an automotive car amp and feed the signal with a standard MP3 player. I may use a line driver to beef up the signal from the MP3 player.
The 6.5's will be in a ported box. Around .6 per driver looks good and flat and will play down to 50hz
The tweeters 4 may be a little much, but I am going to angle them for a wider coverage area.
Crossover point will be around 3700 hz
The amp will be an Autotek Mean Machine 40 or 44, maybe a Rockford DSM 40 or 60 i
Something old and cheap but still has a nice solid sound. The inputs on these amps can be low also.
Will use a RCA lyra or something like that for music source.
Everything will be ran at 8 ohms and should run on a standard 12 volt battery for some time at a moderate volume. Although this will cut my amp power in half I still think 15 watts per channel of clean power will be enough.
The enclosure will be made out of birch or treated plywood and covered in a heavy-duty bed liner coating. I will also liquid glass the outside of the enclosure before coating it with bed liner.
The goal is to make it light enough to carry it around with out a lot of problem.
I will post pictures once I get the speakers in and start the project. I figure total cost on the unit minus parts I already have will be $200. I think it will sound nice and full and will spruce up a day at the river or lake.