I can't comment specific to the Bennington (waiting on one) but I had a Wetsounds zone controller (WS-420SQ) in my wakeboard boat. With the zone controller, I was able to control the in-boat speakers, the sub and tower speakers all independent of each other. I had the stereo remote on the rear transom for adjusting the volume and changing songs (IPOD control). When underway just cruising I'd turn down the tower speakers to nearly nothing and just run the in-boats and sub. When I beached, I turned the towers up and the in-boats way down but typically left the sub as is. The controller was under the left dash. Once I did that, I could fine-tune the volume of the tower speakers from outside the rear of the boat. Worked very well. The controller even has a PA mic for the rear speakers so I could talk to someone that was wake boarding or tubing. It would cancel the music from those speakers when keyed up and then come back on when finished. Pretty slick little unit. I was very happy with it. Just my .02.