DESC: Acoustically-Matched Two-Way Design delivers dynamic sound on its own, or blends seamlessly with the Sub10 subwoofer, even in difficult, wide-open outdoor spaces. Dynamic Balance Driver Technology: 3 1/2" long-throw midrange driver with 1" voice coil, vented pole-piece, rugged butyl rubber surround and composite cone; 3/4" composite dome neodymium tweeter. Capable of handling up to 100 Watts of power to deliver superb clarity, detail and high efficiency with less distortion, at both moderate and higher volume levels, even in outdoor environments. Flying Bridge-Mounted Tweeter never gets in the way of the woofer, for smooth, realistic sound in a compact housing. Capacitive Coupling Technology enhances the bass performance of the Sat30. CCT is an advanced signal-blocking technology that determines exactly where a small speaker usually skimps on bass output. Special circuitry then compensates by boosting response in this critical frequency range.