If you want to improvise the experience of your home theatre system with extraordinary sound effects, then the Proficient C650 in-ceiling speaker home is worth considering. With a frequency response range of 45-20000 Hz, this Proficient speaker enables you to listen to a variety of sounds. Thanks to its two 6.5-inch polypropylene woofers, this in-ceiling speaker offers you crystal-clear sound with delivering bass and lower midrange notes. Moreover, with a sensitivity rating of 91 dB, the Proficient C650 speaker effectively converts 100 watt power to a clear sound output. All in all, with its sweet-sounding silk dome tweeter, this Proficient speaker reproduces ultra-high-frequency sounds.