I currently have a customer with an outdoor pool setup that consists of 8 Niles audio RS8 Pro rock speakers being run by a Sonance 1750 amp. It sounds great but unfortunately he plays it at rock concert volume and listens to a lot of hip hop and bass heavy music. I believe this system is way past what an inground sub could do and I'm looking for like a a 15 or 18 in cabinet woofer that I can place under the deck which would be sheltered from most but not all weather. I could probably do some modifications to the cabinet to make it more weatherproof but just looking for ideas or experience if anybody's done this before.