Constructed from lightweight Luaun core plywood, each Tandem Drive loudspeaker enclosure is sealed with Tuf-Coat™, a virtually indestructible finish with a high resistance to abuse. Inside each box, proprietary low frequency drivers feature Community's new, patented Cool-Coil™ technology. And to keep you up-and-running no matter how loud it gets, every model is internally safeguarded with IntelliSense™, a protective circuit which guarantees maximum output minus the risk of speaker damage.