Parts Express - WOW! 30% OFF?! With a large roll surround, high excursion, and low Fs for its size, the Peerless SLS-P380945 5-1/4" subwoofer is ideal for use in extremely compact subwoofer
Atlantic Technology Declares Wireless Subwoofer Freedom with New FS-Series | audioXpress
L 35 FS - SE AUDIOTECHNIK
GRS 6LPSW-4 6-1/2" Low Profile Subwoofer 4 Ohm
FS: 12" Acoustic Elegance Lambda Woofer Driver PB12 w Copper Faraday Rings Single Woofer 150$ OBO | Home Theater Forum and Systems