i have the skm10 sub in my boat as well. i took it to an audio place to have them hook up my tower speakers amps sub wetsounds eq so i knew everything was done right as i'm not an audio guy. they custom built a box for me and mounted it under the helm in front of the hump facing back to bounce the sound off the hump . i was pleasently surprised how well it sounded then last spring i installed a heater and needed that spot for my heater unit so moved my sub behind the hump of the helm still facing back and still sounds great. for my budget back then i was really happy with it and sounds pretty good...but i think brian has talked me into the exile sub and custom lsv enclosure but that will be next winter.