JBL 4641 Pro Cinema 18" Sub woofer Speaker Photo #2303066 - US Audio Mart
18 INCH CINEMA SUBWOOFER 4641 - YouTube
JBL 4642A Dual 460 mm (18 in.) Subwoofer System
Jbl 4641 Cinema 18" Subs | Reverb
JBL Professional - Powerful performance and flexibility meets superior sound reinforcement. JBL Pro 7 Series studio monitors and 4641 subwoofers deliver exceptional sound quality and impressive detail to all of your recording