Poly cone woofer with rubber surround and 1" titanium dome tweeter * Binding post connections with heavy duty ABS case and mount * Power handling: 100W/200W (RMS/max) @ 4ohm - Frequency response: 40Hz~20KHz - Sensitivity: 90dB * Minimum/Maximum mounting diameter: 1 1/8" / 1 1/2" * Overall diameter: 8 1/2" - Overall Length: 8 3/4"