C625TT Ceiling Speaker The C625TT is the most affordable way to get Proficient-quality stereo sound. With a dual-voice-coil woofer and dual tweeters, the C625TT reproduces both left and right stereo channels in a single, easy-to-install in-ceiling speaker. Super-high sensitivity makes the C625TT compatible even with inexpensive, low-powered amplifiers. Stereo doesn't get any simpler. The C625TT gives you stereo sound where mounting two speakers is impractical, such as in a hallway or bathroom. Its 6 1/2-inch polypropylene woofer has dual voice coils so it can reproduce left and right stereo channels. Dual 1/2" hard dome tweeters handle the high frequencies. Careful tuning from Proficient's team of devoted audio enthusiast/engineers makes the C625TT a sweet-sounding little speaker. You can use the C625TT with any amplifier, thanks to its high 92 dB sensitivity. A typical speaker requires three times as much power! It's easy to install, too, thanks to a sturdy dogleg mounting system. All of Proficient's 6 1/2-inch ceiling speakers use the same mounting template so you never have to worry about cutting the wrong size hole. Includes Thin-Bezel Grilles held by Neo Magnets.