Frequency Response 100Hz – 20kHz @-3dB; Crossover Frequencies 5.5kHz; Finishes Earthen Brown; Highfrequency Driver Components 0.75” Micro Ceramic Composite Aluminum Dome Tweeter; Low-frequency Driver Components 4” Micro Ceramic Composite Aluminum Cone Woofer; Mounting Sliding Collar, Deck Mounting Bracket, Ground Spike; Recommended Amplifier Power 60W RMS; 100W RMS with High Pass Filter @100Hz; Sensitivity 83dB (2.83V @1M) in Bypass mode; Voltage Gain 70V; Weight 9.9 lbs / 4.5kg; Dimensions (H x W x D) 11.3”/6.5”/9.2” (29.5cm/16.4cm/23.3cm); Transformer Taps 7.5W, 15W, 30W, 60W; Impedance 4 Ohm in