Stereo Marine Audio 6.5" coaxial speakers (4) $100

[Majorsmackdown]

Take outs from a new yamaha boat. (2016 AR240). New condition, 2 pair. (4 speakers). They're $65 each on amazon. This is a Jensen brand. Snap off grilles and stainless screws. $100. + actual shipping

I replaced these with polk mm651um speakers, and yes the polks do sound better and make a a bit more bass - but these really aren't bad at all. They're actually pretty good - especially for 1/4 the price...

150 watts
Waterproof
Polyprolene cone
Santoprene surround
Gold plated terminals
Neodymium magnet
3/4" Titanium dome tweeter
Mounting depth: 2.5"
Cut out diameter: 5"

more info here:

http://www.asaelectronics.com/marine-audio-speaker.html#product_tabs_additional_tabbed