FYI - Alot of us have invested alot of money in our boat's stereo system so it makes sense to protect the expensive tower speakers. I just scored two pair of Speaker Sox for my Bullet HLCD speakers on ebay for $24.99 a pair with only $2 shipping. Sorry, I did the "buy it now" on the only two auctions but I'm sure there will be more. $24.99 is half price of the Speaker Sox compared to retail on their official website. Tower Socks makes a tower speaker and rack kit as well for a great price...$55 I think.