JBL: VPX728S by Millionhead (18 -inch high power subwoofer speaker, used with full range -range sapphire speakers)

Dual 18 "High-Power Subwoofer, a 18-inch pair of powerful power subwoofers designed for live music, words and applications recorded. And for use with the Full Renaine Speaker VPX728S is a Dual 18 "High Power Subwoofer System Designed for Live Music, Speech and Pre-Recordated Applications and For USE WITH FULL-RANGE SPEAKERS. Two 18 "(457mm) JBL 2044H Woofers in a Front Vented Enclosure To Reproduce Low Bands Extended Frequence Response and Low Distortion, and to Stand Continate Power Up to 1000Watts. Er Can Be Stack on Its Top Without The Need for An Additional Pole. The Subwoofer System Offers Compatible with a variety of cabling schemes. Fer. To Meet Different Cabling Requirements, The Woofer Canal Be Re-CONFICED TO WOROUGH PINS +2/--2. VPX728s Provides Two Handles For Easy Transit and Set-Up. Its Enclos is Made From Prywood, FINGWOD In FOY. GED Duraflex ™ Coating And Braced to Maximize Low Frequency Performance. The CNC-MACHINED 16-Gauge Steel Grille is Backed with Acoustically Transparent Fabrics to Provideral Driver Protection and Give A VERESIONAL. L 2044H Woofer For Extended Low Frequency Outputlarge Vent Port for Reduced DistortionENCLOSURUTRUATRUATRUATED OF PRYWOOD and Finished in Black Duraflex ™ CoatingHeavy-Duty 16-Gauge Protective Steel Grillertical Orientation for Convention Ve Music and Spech or Pre-RECODED ApplicationSfor Use with Full-Range Speakers