Concrete Audio C4 12. 2 layer nomex spider with bolt down ring. Black finished stamped steel basket.
from www.concreteaudiousa.com
In 12” 15” and 18” In 12” 15” and 18”c315d4v3 c3 series version 3 15″ subwoofer.
C4 Series Archives Concrete Audio
Concrete Audio C4 12c315d4v3 c3 series version 3 15″ subwoofer.c4 series subs have landed. Stitched to cone wide foam surround. ( 1 customer review) $ 562.99.