Technical Information RMS Output Power: 1000 W PMPO Output Power: 2000 W Driver Type: 21" Woofer Minimum Frequency Response: 22 Hz Maximum Frequency Response: 4 kHz Impedance: 8 Ohm Sensitivity: 107 dB Application/Usage: Indoor/Outdoor Physical Characteristics Speaker Diameter: 21.80" Mounting Depth: 10.20" Height: 10.8" Width: 21.5" Depth: 21.5" Diameter: 21.8" Weight (Approximate): 21.87 lb Miscellaneous Additional Information: 22 Hz Resonance Magnet Weight: 350 oz 4 Aluminum Voice Coil Mounting Depth: 10.2 Die-Cast Aluminum Frame LJD Warranty Limited Warranty: 1 Year

Technical Information RMS Output Power: 1000 W PMPO Output Power: 2000 W Driver Type: 21" Woofer Minimum Frequency Response: 22 Hz Maximum Frequency Response: 4 kHz Impedance: 8 Ohm Sensitivity: 107 dB Application/Usage: Indoor/Outdoor Physical Characteristics Speaker Diameter: 21.80" Mounting Depth: 10.20" Height: 10.8" Width: 21.5" Depth: 21.5" Diameter: 21.8