The Revolution Series of speakers is our newest innovation In Wakeboard Tower Speakers. Combining great overall smooth sound reproduction at any listening level due to the enhanced crossover design, while still performing incredibly up to and over 80+ feet away! The REV Series Tower Speakers are the NEW benchmark in the marine audio world! They are simply the highest performing wakeboard tower speaker system ever produced. Available in Swivel Stainless Steel Clamp, Fixed Stainless Steel Clamp and Direct X Mounting options.