YOU ARE BUYING 2 SPEAKERS The MB Acoustics MB-8900/AMB 8" Aluminum Bullet Loudspeaker was designed for Natural Sound during high SPL levels. With a large motor structure, high temperature 2" Kapton voice coil, Heavy Duty Cone and Spider it will handle large power with proper crossover levels. In order to support the large 42oz magnet, it is mounted on a Strong Alumimun Frame. The 2" Polished Aluminum Bullet was designed to recreate crisp Mid-high frequencies and it also helps to dissipate heat from the voice coil. Type: Midrange Aluminum Bullet LoudspeakerSize: 8"2" Polished Aluminum Bullet (others have a 1.5" bullet) Voice Coil: 2" High Temp Kapton (others have a 1.5" voice coil) Magnet Structure: 42oz (others use 30oz and don't specify their weight)Frame: Aluminum Basket (others use stamped steel)Cone: Semi non-press (Extra Heavy Duty will not tear, others use weak press cones)Surround: Cloth EdgeFrequency Response: 85 Hz - 12kHzSensitivity: 104dB (1W/1M)RMS Power: 900W (450W each)Max Music Power: 1800W (900W each)Impedance: 4 ohmMounting Depth: 3.6"Cut-out Diameter: 7.2"Net Weight: 13.2 LBS (6.6 LBS each)Make sure you have sufficient mounting depth before ordering!!! NO RETURNS!