Crossover Frequencies Variable 50 – 150Hz; Enclosure Type Bass-Reflex via RearFiring Port; Input Connections L/R Stereo RCA Input; Low Frequency Extension 35Hz, 32Hz, 29Hz (-3 dB, -6 dB, -10 dB); Low-frequency Driver Components 10” Coated Fiber-Composite Cone, Cast-Frame Woofer; Recommended Amplifier Power 800W Class D Amplifier; Dimensions 16.45" x 14.85"x 15.45" (41.8cm x 37.7cm x 39.2cm) —Including Feet; Weight 53 lbs