Nothing sounds quite like graphite. A graphite woofer has lightness for quick response, along with the strength needed to handle the full dynamic range of today's digital sources.
The IW525 in-wall LCR really delivers, with two 5-1/4" woofers, a 1" aluminum-dome pivoting tweeter, bass/treble contour switches and 100 watts of power handling.
Design:
5 1/4" 2-Way in-wall LCR speaker
Tweeter:
 Pivoting 1” aluminum dome
Woofer:
 Two 5 1/4" Graphite cone with rubber surrounds
Sensitivity:
 88dB
Frequency Response:
 45Hz-20kHz
Impedance:
 4Ω
Power Handling:
 5-100 Watts
Speaker Dimensions:
H8” X W15-15/16” X D3-7/16”
Cut-Out Dimensions:
H6-3/16” X W14-1/2”