i did all JL Audio in mine. see below. very clean sound, no distortion. I still need to upgrade my head unit though to give a lil more versitility with adjusting everything.
SC_LSV
2006 Moomba Mobius LSV Black/Grey
Board - 08 Ronix Covin / 08 Ronix Cells
Surf - CWB Tsunami
Audio - 6 - JL M650-CCX 6.5" in boat
2 - JL M770-ETX 7.7" on Tower
2 - JL 10" W1 Subs
JL M6600W & JL M1700W Amps