15.0 in (380 mm) Professional Neodymium Woofer — 3400 W Continuous, 8 Ω

Overview: A high-power 15.0 in (380 mm) professional woofer built for demanding applications. Neodymium magnet motor, T-Pole with inside slug, and an aluminium demodulating ring deliver low distortion and reliable long-term performance. The driver is TWP treated (waterproof both sides). Power & impedance: - Nominal impedance: 8 Ohms - Minimum impedance: 6.5 Ohms - Nominal power handling 1: 1700 W - Continuous power handling 2: 3400 W - Sensitivity (1W/1m)3: 96.0 dB - Frequency range: 35 - 1500 Hz Voice coil & motor details: - Voice coil diameter: 116 mm (4.5 in) split winding copper voice coil - Winding material: Copper - Former material: Glass Fibre - Winding depth: 34 mm (1.33 in) - Magnetic gap depth: 14 mm (0.55 in) - Flux density: 1.15 T - Ventilated voice coil gap for reduced power compression Cone, suspension & excursion: - Cone shape: Radial - Surround shape: Triple Roll - Spider: Double Silicone spider with optimized compliance - Peak-to-peak excursion before damage: 60 mm - Xmax: 13.5 mm - Xvar: 13.0 mm Mechanical & thermal: - Pole design: T-Pole - Magnet material: Neodymium - Inside slug - Aluminium demodulating ring for very low distortion - Woofer cone treatment: TWP Waterproof Both Sides Recommended enclosure & tuning: - Recommended enclosure: 90.0 dm3 (3.2 ft cubed) - Recommended tuning: 40 Hz Thiele-Small parameters: - Fs: 35 Hz - Re: 5 Ohms - Qes: 0.25 - Qms: 4.4 - Qts: 0.24 - Vas: 110.0 dm3 (3.9 ft cubed) - Sd: 855.0 cm2 (132.5 in 2) - Mms: 200 g - Bl: 30.0 Txm - Le: 1.8 mH - EBP: 140 Hz Mounting & dimensions: - Nominal diameter: 380 mm (15.0 in) - Overall diameter: 393 mm (15.5 in) - Bolt circle diameter: 374 mm (16.7 in) - Baffle cutout diameter: 353.0 mm (13.9 in) - Depth: 193 mm (7.6 in) - Flange and gasket thickness: 16 mm (0.63 in) - Air volume occupied by driver: 7.0 dm3 (0.25 ft3) Weights & shipping: - Net weight: 12.0 kg (26.4 lb) - Shipping units: 1 - Shipping weight: 13.9 kg (30.6 lb) - Shipping box: 420x420x200 mm (16.5x16.5x7.9 in) Service parts: - Replacement diaphragm: RCK15SW1158