DS18 PRO 8" Neodymium Magnet Full Range Loudspeaker 500 Watts

DS18 Pro 8" Midrange Speaker, 250W RMS/500W Max, 4 Ohm (Sold Each) Sold each 8" Neo midrange loudspeaker 250 watts RMS 500 watts max Cloth edge surround Non-pressed paper cone Heavy duty aluminum basket High strength neodymium magnet 1.5" KCCAW 2 layer voice coil 4 Ohms Impedance Sensitivity: 99dB Frequency Response: 160 Hz - 12.5 KHz Mounting Depth: 3 ?