Proficient Protege C656The C656 brings our great sounding graphite cone woofer down to a very affordable price. We mount the C656s graphite woofer and silk dome tweeter at a 15 degree angle, so you can mount the speaker in the ceiling above a TV and still point it straight at the listeners for better sound Great sounding graphite made affordable. Graphite makes the C656s woofer cone extremely stiff and light, which gives the speaker a clearer sound with lower distortion.