he means face the sub at floor ,to reflect the sound ,it works great that way ,if you wanna have for looks to could always do this have 1 or 2 subs facing up wards ,and make a floating armrest over top of it to work like a partial
Because they wouldn't see the sub and would think there was nothing in there. Sorry I didn't get a chance today to figure up the measurements for you. As soon as I do I will pm you. You can get the cupholders from just about any boating supply store.