RCF 8" Speaker, 200W, 102dB, 300-3000Hz, X-max 3.5mm, weight 3.5kg The MR8N301 is a high-efficiency, high-power midrange speaker designed to deliver exceptional sound pressure levels in a compact form factor. Its neodymium magnet assembly significantly reduces weight compared to ceramic midranges of similar size. The sealed basket design eliminates the need for a back sealing chamber, simplifying cabinet design and enhancing heat dissipation. Every aspect of this speaker is optimized to provide precise control and excellent response in the midrange frequencies. Features: - 3-inch, inside/outside copper voice coil - 400W continuous program power handling - 107 dB Sensitivity in horn-loaded applications - 300 Hz – 3 kHz Frequency range - High BL neodymium design - Unique aluminum sealed basket with vented fin heat dissipation design - Calibrated back volume for accurate time domain transient reproduction General Specifications: - Nominal Diameter: 200 / 8 mm/inch - Rated Impedance: 8 ohm - Program Power: 400 W AES - Power Handling Capacity: 200 W AES - Sensitivity: 102 dB - Frequency Range: 300 Hz ÷ 3000 Hz - Effective Piston Diameter: 168 / 6.6 mm/inch - Max Excursion Before Damage (peak to peak): 15 / 0.6 mm/inch - Minimum Impedance: 9.8 ohm - Voice Coil Diameter: 76 / 3 mm/inch - Voice Coil Material: Aluminum - Voice Coil Winding Depth: 11 / 0.4 mm/inch - Number of Layers: 2 - Kind of Layer: inside / outside - Top Plate Thickness: 8 / 0.3 mm/inch - Cone Material: No pressed pulp - Cone Design: Curved - Surround Material: Polycotton - Surround Design: Triple roll Thiele/Small Parameters: - DC Resistance: 6.6 ohm - Mechanical Factor: 3.45 - Electrical Factor: 0.41 - Total Factor: 0.37 - BL Factor: 17.8 T · m - Effective Moving Mass: 10.1 g - Equivalent Cas Air Load: 1.65 liters - Effective Piston Area: 0.021 m2 - Max. Linear Excursion (Mathematical): 3.5 mm - Voice-Coil Inductance @ 1kHz: 1.16 mH - Half-Space Efficiency: 12.8% Mounting Information: - Overall Diameter: 238 / 9.4 mm/inch - Bolt Circle Diameter: 220 / 8.7 mm/inch - Bolt Hole Diameter: 6.5 / 0.3 mm/inch - Front Mount Baffle Cut-out: 202 / 8.0 mm/inch - Rear Mount Baffle Cut-out: 182 / 7.2 mm/inch - Depth: 101.5 / 4.0 mm/inch - Volume Occupied by the Driver: 2 / 0.07 liters/ft3 - Net Weight: 3.5 / 7.7 kg/lbs Shipping Information: - Shipping Weight: 4.0 / 8.8 kg/lbs