*Sold as each not in pairs. Massive Audio's M8C Closed Back Mid-Range Speakers are designed for high SPL without needing an enclosure of any kind. These are your best "bang for your buck" in a mid-range speaker that excels in excellent vocal reproduction. Engineered to cover frequency ranges from 550Hz " 6KHz the M6C Closed Back or Sealed Back Speakers offer clear transparency for systems that need that boost in Mid Range tone and clarity. "On a Stage or in a Car Massive Drives it Home!" Manuals & DownloadsM8C Manual FEATURES High Grade Ferrite Magnet 38mm Copper Voice Coil Kapton Coil Former Heavy Gauge Steel Basket Reinforced Paper Cone Custom Cloth Surround SPECIFICATIONS Nominal Basket Diameter 8.2", 210mm Nominal Impedance 8 Ohms RMS Watts 80w MAX Program 160w Usable Frequency Range 550Hz - 6KHz Sensitivity 98dB Voice Coil Diameter 1.5", 38mm Resonant Frequency (fs) 550 Hz DC Resistance (Re) 7.2 Mechanical Q (Qms) 6.3 Overall Diameter 8.2", 209mm Baffle Hole Diameter 5.8", 149mm Mounting Holes B.C.D. 7.9" Depth 2.8", 71mm Basket Materials Stamped Steel Cone Composition Paper Cone Cone Edge Composition Dust Cap