50- To 400-Watt Power Rating (175-Watt Maximum Recommended Amplifier Power) 8 Ohms Impedance Dual 3-Inch Cone Tweeters With High-Temperature Voice Coil 10-Inch Woofer With High-Temperature Voice Coil 1.7 KHz Crossover Frequency 40Hz-20 KHz (-3 dB) Frequency Response Protection Circuitry Prevents Blown Tweeters Straight-Line Signal Path™ (SSP™) With Left And Right High-Frequency Room-Adaptive Trim Controls Mounting Holes Low Diffraction, IsoPower™ Baffle Dual FreeFlow™ Flared Ports Gold-plated, 5-Way Binding Posts Metal Speaker Grilles 29.7 Lbs. 13.19"H x 20.88"W x 9.63"D