*Sold as each not in pairs. Massive Audio’s M57C Closed Back Mid-Range Speakers are designed for high SPL without needing an enclosure of any kind. These 98dB efficient mid-range speakers excel in excellent vocal reproduction. Engineered to cover frequency ranges from 60Hz – 6KHz the M57C 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!" FEATURES High Grade Ferrite Magnet 25mm Copper Voice Coil Kapton Coil Former Heavy Gauge Steel Basket Reinforced Paper Cone Custom Cloth Surround SPECIFICATIONS Nominal Impedance 8 Ohms RMS Watts 70w MAX Power 140w Usable Frequency Range 600Hz - 6KHz Sensitivity 98dB Mechanical Q (Qms) 6.1 Electromagnetic Q (Qes) 8.2 Total Q (Qts) 3.5 Compliance Equivalent Volume (Vas) 0.326 liters Mechanical Compliance of Suspension (Cms) 11.7 uM/N BL Product (BL) 4.4 TM Surface Area of Cone (Sd) 0.023 Sqm Mounting Holes Diameter 170 x 117 Mounting Depth 2.56", 65mm Shipping Weight 2.5 Lbs, 1.13 Kgs Basket Materials Stamped Steel Cone Composition Paper Cone Cone Edge Composition Dust Cap Dust Cap Composition Paper Dustcap
