Uhh, a good discount place at least for JL is right in your back yard. Ask Ryan at Winnisquam Marine he got mine for me at an awesome discount and it is pretty heavy duty for what I use it for, and yes it was a 5 channel amp. You can probably do it cheaper with other brands that are arguably just as good I expect. But hey if this kit is good enough for the high end mastercraft & malibu's then who am I to judge.
Here was my install in a 210.
viewtopic.php?f=3&t=2125Jim_R made up a tres-cool underseat sub box you can see here:
viewtopic.php?f=3&t=2069 And his stereo here:
viewtopic.php?f=7&t=1956&hilit=+stereoCougarCruiser did a awesome install in a 240 and he has a great discount contact too:
viewtopic.php?t=1477And Impulse did a trick setup here:
viewtopic.php?f=3&t=1708&hilit=+stereoAll sweet installs - and there are more that I have forgotton. Excellent guides when you jump in to do yours. Hit any roadblocks don't be shy just ask someone here has likely solved it.