*Sold as each not in pairs.Massive Audio's M6C 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 570Hz " 7KHz 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 & DownloadsM6C Manual FEATURES High Grade Ferrite Magnet 25mm Copper Voice Coil Kapton Coil Former Heavy Gauge Steel Basket Reinforced Paper Cone Custom Cloth Surround SPECIFICATIONS Nominal Basket Diameter 6.5", 166mm Nominal Impedance 8 Ohms RMS Watts 70w MAX Program 140w Usable Frequency Range 570Hz - 7KHz Sensitivity 98dB Voice Coil Diameter 1", 25mm Resonant Frequency (fs) 570Hz DC Resistance (Re) 7.2 Mechanical Q (Qms) 3.88 Depth 2.9", 71mm Basket Materials Stamped Steel Cone Composition Paper Cone Cone Edge Composition Dust Cap