Wakeboard tower was designed by Hydrocide (Boss Towers). Speaker and stereo system was installed by Roy Baker, Mike Amedei and James White. There is 18 (6 x 9's), 14 (6 1/2), 2 (5 1/4 w/2 ea. tweeters) and 4 (12" 7500 series sub woofers. All speakers is MTX Audio. There is 4 ea. TE-1004 Amplifiers (1000 watt amps ea.) and 1 TA-7804 Amp for the Sub Woofers. Pioneer 6900MU w/IPod, Pioneer EQ7600, Pioneer 12 Disc CD Changer and XM Receiver. 1986 Sanger 19' w/200 Mercury XRI.