Water Tunes

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Whether you use water skis, tubes, kneeboards or wakeboards, the truest test of the powerboat that tows you is its sound system. The new wakeboard tower audio system from Infinity ($1,100; infinitysystems.com) features an amplifier and waterproof speakers designed to pump high-decibel music up to 50 ft. past the stern — even when you're knifing full throttle through the water. The system includes a microphone that enables people in the boat to talk to whomever they're towing. It may not improve your water skiing, but at least you can have a good sound track.