Gumby- The 12" woofers on the stern is a great idea. If you have room, have you considered some old 15" Altecs? (With the cavernous hull, bass response would be as God intended.) Just remember to use some good sealant as you may catch a stern wave coming back to you as the boat comes down from the 'foils. You may also have to do some research to determine who makes a woofer that can take an oncoming stern wave. Maybe those scintific journals cam help you come up with a calculation for determining the forces involved. In any event, don't use paper coned elements......
With regards to sub matching, the key was an active x-over set at a point as low as possible. In my case, it turned out to be around 50 HZ. Both the x-over and powered sub have a volume control and the x-over had a couple of slope selections, so a smooth transition was relatively easy. This particular speaker model seemed to benefit greatly from this set up- MUCH cleaner sounding as it had previously struggled with the low end even at moderate volumes. (Don't know if you were aware that an active x-over eliminates low frequencies from going to the mains while a passive does not.)
Well, got done with the chores this morning and headed out to the lake for some sailing. Have yourself a great Memorial Day holiday!
Regards
Jim
With regards to sub matching, the key was an active x-over set at a point as low as possible. In my case, it turned out to be around 50 HZ. Both the x-over and powered sub have a volume control and the x-over had a couple of slope selections, so a smooth transition was relatively easy. This particular speaker model seemed to benefit greatly from this set up- MUCH cleaner sounding as it had previously struggled with the low end even at moderate volumes. (Don't know if you were aware that an active x-over eliminates low frequencies from going to the mains while a passive does not.)
Well, got done with the chores this morning and headed out to the lake for some sailing. Have yourself a great Memorial Day holiday!
Regards
Jim