Speaker City sells speakers, drivers, audiophile loud SD Series 18 in. Woofer
Pair 18" 3500W PA Speaker Sub woofers Replacement Home Audio Woofer Bass Driver 738956339980 | eBay
P Audio SD18-1700N 18" Subwoofer Speaker
P Audio SD18 / P.Audio SD18 18" Lautsprecher | 150 EUR - Gebrauchte-Veranstaltungstechnik.de - Der Marktplatz für gebrauchte Veranstaltungstechnik
P-Audio A- A-B Box (SD186800CA)
Paudio Full Range Super Pa Subwoofer 18 Inch Woofer Sd18 Big Dj Bass Speakers - Buy Big Bass Speakers,Dj Bass Speaker,Speakers Subwoofer Product on Alibaba.com
Four 'X1' 18" subwoofers. P-Audio SD18 loaded. | #514631478