Running wires through existing construction sucks, whether those wires are needed for telephones, PCs, cameras, or speakers. Clambering around the attic, basement, or crawlspace; drilling holes; fishing wire; installing junction boxes—it all adds up to misery.Sometimes you just don’t have a choice. But if you’re looking to install speakers in your home’s ceiling, and your ceiling has existing recessed-lighting fixtures, Klipsch’s LightSpeaker is an ingenious solution: The speaker half of the equation features a 20-watt digital amplifier, a 2.5-inch micro-cellulose polymer speaker cone, a wireless 2.4GHz receiver, and an LED light source that fits inside most any five- or six-inch ceiling can.The amp and the receiver draw power from the existing Edison-style light-bulb socket inside the can, so there’s no need to run additional wiring to the device (Klipsch has a version that will work in pendant and torch-style lamps, too). If your  lighting fixtures use fluorescent or halogen light sources, this solution won’t work for you.