Product Introduction: 8 Inch Pro Audio Coaxial Speaker Model No.: 8TZ5050 This 8 coaxial speaker with good bass uses 134×20mm ferrite magnet & 1.95 inch voice coil. The rated power is 150 watts, and the maximum power can reach 300 watts. This cheap 8" coaxial pro speaker combines a metal frame woofer with a 50mm tweeter, and price is also very attractive. General Specifications: Magnet Size: 134×20H Sensitivity: 90 dB