Very high efficiency and good linearity are distinctive features of this mid-bass woofer. Kapton forme voice coil, polycotton suspensions and treated cone guarantee the very high power handling of this transducer.
Features 4-inch, fiberglass inside/outside copper voice coil 1200W continuous program power handling 99 dB Sensitivity 40 Hz – 2 kHz Frequency range M-roll damped surround Exponential damped cone Copper ring
General Specifications Nominal Diameter: 380 / 15 mm/inch Rated Impedance: 8 Ohm Program Power: 1200 W AES Power handling capacity: 600 W AES Sensitivity: 99 dB Frequency Range: 40 Hz ÷ 2000 Hz Effective Piston Diameter: 325 / 12.8 mm/inch Max Excursion Before Damage (peak to peak): 44 / 1.73 mm/inch Minimum Impedance: 7.9 Ohm Voice Coil Diameter: 100 / 4 mm/inch Voice Coil Material: Copper Voice Coil Winding Depth: 16 / 0.6 mm/inch Number of layers: 2 Kind of layer: inside / outside Top Plate Thickness: 9 / 0.35 mm/inch Cone Material: No pressed pulp Cone Design: Curved Surround Material: Polycotton Surround Design: M - roll
Thiele/Small Parameters Resonance frequency: 35 Hz DC resistance: 6.6 Ohm Mechanical factor: 8.6 Electrical factor: 0.25 Total factor: 0.24 BL Factor: 23 T · m Effective Moving Mass: 91 g Equivalent Cas air load: 227 liters Effettive piston area: 0.083 m² Max. linear excursion (mathematical): 5.8 mm Voice - coil inductance @ 1kHz: 1.7 mH Half-space efficiency: 3.75%
Mounting information Overall Diameter: 387 / 15.2 mm/inch Bolt Circle Diameter: 371 / 14.6 mm/inch Bolt Hole Diameter: 6.5 / 0.3 mm/inch Front Mount Baffle Cut-out: 358 / 14.1 mm/inch Rear Mount Baffle Cut-out: 362 / 14.2 mm/inch Depth: 138 / 5.4 mm/inch Volume occupied by the driver: 3.8 / 0.13 liters/ft³ Net Weight: 11.3 / 24.9 kg/lbs
Shipping information Shipping weight: 11.8 / 26.0 kg/lbs
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