Dual-Ported Cabinet Design Two Hartke XL 15″ Aluminum-Cone Bass Drivers Power Handling: 400 Watts @ 4 Ohms Frequency Response: 30 Hz To 1 kHz Sensitivity: 99 dB @ 1 W/1 M Voice Coil: 3″ Magnet Weight: 100 Oz. Recessed 1/4″ jack Dimensions: 34″(H) X 24″(W) X 18.5″(D) Weight: 110 lb.