Heavy Duty MDF Construction w/ Reinforced Corners 6" x 17" Super Horn Midrange/ Tweeter 1.5" Titanium Compression Dreiver Loaded in Horn Five Piezo Tweeters 15" Subwooofer 2.5" Kapton VC Woofer Magnet Weight: 90 oz Compression Tweeter Magnet Weight: 20 oz Ported Enclousure for Added Bass Response Heavy Duty Handles for Easy Portability Dual Speakon Dual 1/4" Jacks Binding Post Terminals Built in Crossover Network Power Handling: 500Watts RMS/ 1000 Watts Peak Frequency Response: 35-20K Hz Sensitivity (1w/1m): 107dB Impedance: 8 Ohms Dimensions: 19.8" (W) x 16" (D) x 34.4" (H)