MP694 – 6 X 9” PRO Full-Range Co-Ax Horn Speaker 150W RMS/300W MAX Power Handling Ferrite Strontium High Temp Magnet structure Heavy Duty Die-cast Aluminum Basket 1.5” 4 Ohm – Single Layer High Temp Voice Coil with Black Coated Voice Coil former for Woofer 1.0” 8 Ohm – Single Layer High Temp Voice Coil for Tweeter Advanced Voice Coil Heat Sink Design for Better Heat Dissipation Frequency Response: 80Hz -18Khz High Sensitivity 101dB 1W/1M 12dB Crossover Mounting Depth: 3.99” / 101.3mm Mounting Diameter: 8.86” x 5.98” / 225 x 152mm