Dusty's 2020 came to us with an aftermarket 10" Kicker Comp VX woofer in front of the helm. Great woofer, but it was in an MDF sealed automotive box, which will not last long in the marine environment. It was also bridged on 2 chnls of a Wet Sounds HTX-4 amp, so under powered by half. The other half of the HTX-4 was powering a pair of Wet Sounds Rev-8. So again, about half of where we would like them.
We pulled the HTX-4 and installed an HTX-2 and an SDX-6. The SDX-6 is driving the Kicker Comp-VX at 585W rms bridged on 2 chnls. We added a 2nd pair of Rev-8 to the tower, with each now wired to the remaining 4 chnls for 185W to each.
To improve the low end, we removed the MDF box and put the Kicker Comp VX in a Roswell marine grade ported enclosure. So we doubled the wattage and effectively increased the effective surface area going from a sealed to ported. We also installed an HTX-2 to power a new Wet Sounds Revo-12HP in a Roswell 12" ported enclosure in the port side mid-ship locker.
To bring it all together, we installed a Wet Sound WS220BT in their billet under-dash mount.
The 6 cabin speakers stayed on the OEM installed HTX-4, but retuned.