A little enhancement goes a long way. Enter the C640. Designed for rooms and home-theater systems of moderate size, this 125-watt unit--with its 6-1/2" graphite woofer, 1" aluminum-dome pivoting tweeter and bass/treble contour switches--has all the highs, bass projection and peak response you could want. In a word, incredible.
   
Design:
2-Way coaxial in-ceiling
Tweeter:
Pivoting 1” aluminum dome
Contour Switches:
+3dB Bass and +3dB Treble
Woofer:
6.5” Injection molded graphite (IMG) cone with rubber surround
Sensitivity:
92dB
Frequency Response:
32Hz-22kHz
Impedance:
Power Handling:
5-125 Watts
Speaker Dimensions:
Diameter 9-1/4” X Depth 3-5/8”
Cut-Out Diameter:
8-1/4”