ساب ووفر پسیو جی بی ال JBL STX828S

Features:

• Passive, dual 18" subwoofer with 4,000-watt RMS power rating at 4 ohms
• Exceptional low-frequency response, 32Hz-250Hz
• Maximum SPL of 138dB, sensitivity is 99dB (1W/1M)
• DuraFlex enclosure finish protects the cabinet
• 14-gauge steel grill protects the woofer
• Multi-ply birch/poplar construction for incredible strength
• 180 lbs.