Originally Posted by
MLA
Thats what I thought, just wanted to make sure. If you wire a single Type-R in parallel, you will net a 2 ohm load. This will get you 500W rms from the exile. This should be spot on for the Alpine. With this sub radiating directly out into the main area with 500W will be a very respectable setup. If you wanted to down the road, add another 500W amp (or swap the 500W exile for a 1000W @ 1 or 4 ohm) and add the 2nd Alpine. Although it would be in a locker, it will be a boat shaker and the primary sub will contribute the most musically.
The bow pair will each be on their own chnl (1 and 2), so each will receive the 120W @ 4 ohm. The port side main cabin pair will be wired in parallel on chnl 3 and will divide the 160W @ 2 ohm power, so each speaker receives 80W. Same for the starboard main cabin pair wired on chnl 4. Once both halves of the amp are setup correctly, you can then reduce the gain on the bow pair to balance them with the main cabin if needed.