Check the listing for details. 4x MB Acoustics 8" Midrange Pro Audio Speakers 4 ohms 2000 Watts. Condition: New. Listed at 137.50 USD. YOU ARE BUYING 4 MB ACOUSTICS 8” MIDRANGE SPEAKERS The MB Acoustics MB-8400 - 8" Loudspeaker was designed for Natural Sound during high SPL levels. It has a 25oz magnet with a bumped back plate coupled to a 1.5" voice coil with high temperature Kapton to achieve higher power handling and protect the voice coil on high power peaks. It reproduces smooth and natural Midrange frequencies with proper crossover levels. Type: Midrange LoudspeakerSize: 8"Voice Coil: 1.5" High Temp Kapton Former (Others use Aluminum Former)Magnet Weight: 25oz / 4.75" wide (Others use 20oz or 23oz)Bumped back plate Frame: Stamped SteelCone: Heavy Duty PressedSurround: Cloth EdgeTerminals: Gold SpringFrequency Response: 100Hz - 8kHzRecommended High Pass Crossover: 250Hz (500Hz for Max. Power)Sensitivity: 93dB (1W/1M)RMS Power: 1000W (250W each)Max Music Power: 2000W (500W each)Impedance: 4 ohmMounting Depth: 3.15" (80mm)Installation cut-out diameter: 7 1/4"Overall Height: 3.73" (95mm)Overall Diameter: 8 1/4"Weight: 4.8 LBS each speakerMake sure you have sufficient mounting depth before ordering! NO RETURNS!