The JBL LSR6312SP powered subwoofer is based on a 12" woofer with JBL's patented Neodymium Differential Drive NDD and 250 watts of power. An integral bass-management system provides all the features you need for today's multi-format surround production including: LCR and Direct LFE inputs, summed output for chaining multiple subwoofers, -4 dB alignment setting, and JBL's new "RMC" Room Mode Correction system (RMC Calibration Kit included).

Features:
• Multi-format powered subwoofer for Dolby Prologic, AC-3, DTS and other surround formats
• Room Mode Correction provides electronic control of response peaks due to room modes
• 250 watt continuous output power amplifier
• Sophisticated LCR bass management system
• Direct LFE input with selectable 10 dB input sensitivity
• Summed output allows chaining of multiple LSR6312SP for multiple subwoofer systems
• Neodymium Differential Drive technology with dynamic braking for extended low frequency response and low power compression
• High-density baffle for low resonance and stable inertial ground
• Linear Dynamics Aperture port design eliminates port turbulence and reduces port compressio.
• Reinforced enclosure and convenient mounting points for mounted installation
• Weight: 50 lb.; dimensions (WxHxD): 25" x 15.5" x 11.5"