Coaxial Speaker 15"/1", 300/50W, 101/110dB, 40-20000Hz, X-max 5.5mm, Radiation angle 60°, Weight 7.3kg The CX15N251 is a lightweight coaxial driver known for its exceptional linearity and high efficiency. It emits a coherent single spherical wave front with precise dispersion control. Powered by a large neodymium ring magnet, it boasts an incredibly high flux density and BL factor. The innovative hyper-vented aluminum basket and magnetic assembly design enhance heat dissipation and reduce power compression. Special air-forced ventilations are incorporated for the voice coil, magnet assembly, and basket. The 2.5” voice coil, featuring a robust fiberglass former and aluminum wire, drives the mid-bass cone with efficiency and extension. The 1.7” dome compression driver, paired with a 60° conical waveguide, delivers clear vocal output and excellent high-frequency extension. Features: - 600 Watt continuous program power handling for Mid-Bass - 2.5-inch fiberglass outside aluminum voice coil - 101 dB Sensitivity - 50 Hz - 3.0 kHz Frequency range - Dual-forced air ventilation for minimal power compression - Triple-roll surround and exponential cone geometry - Demodulation ring - 100 Watt Continuous program power handling for HF - 1.75-inch Diaphragm, 1.0-inch Exit Throat - Frequency range: 1200Hz – 20kHz - 2-slot, optimized geometry phase plug - Polyester diaphragm - Aluminum rear cover CX15N251 Driver: - Nominal Diameter: 25.4 / 1.0 mm/inch - Rated Impedance: 8 ohm - Program Power: 100 W - Power Handling Capacity: 50 W - Sensitivity 1 W, 1 m: 109 dB - Frequency Range: 1200 - 20000 Hz - Minimum Impedance: 6.5 ohm - Voice Coil Diameter: 44.4 / 1.75 mm/inch - Voice Coil Material: Edgewound Aluminum - Number of layers: 1 - Outside - Diaphragm Material: Polyimide - Diaphragm Design: Dome - Suspension Material: Polyimide - Suspension design: Flat - BL factor: 7.5 T · m - Flux density: 1.9 T - Phase plug design: 2 slot - Phase plug material: Composite - Magnetics: Neodymium - Voice Coil Demodulation: Copper ring CX15N251 Horn: - Throat Diameter: 25.4 / 1.0 - Nominal coverage (-6dB): 60° - Cut-off Frequency: 1800 - Material: Structural Polyurethane CX15N251 Woofer: - Nominal Diameter: 380 / 15 mm/inch - Rated Impedance: 8 ohm - Program Power: 600 W - Power Handling Capacity: 300 W - Sensitivity: 101 dB - Frequency Range: 50 - 3000 Hz - Effective Piston Diameter: 330 / 13 mm/inch - Max Excursion Before Damage (peak to peak): 30 / 1.18 mm/inch - Minimum Impedance: 6.4 ohm - Voice Coil Diameter: 64 / 2.52 mm/inch - Voice Coil Material: Aluminum - Voice Coil Winding Depth: 14 / 0.55 mm/inch - Number of layers: 1 - Kind of layer: inside / outside - Top Plate Thickness: 8 / 0.31 mm/inch - Cone Material: No pressed pulp - Cone Design: Curved - Surround Material: Polycotton - Surround Design: Triple-roll Thiele/Small Parameters: - Resonance frequency: Fs - 55 Hz - DC resistance: Re - 5.2 ohm - Mechanical Factor: Qms - 8 - Electrical Factor: Qes - 0.37 - Total Factor: Qts - 0.35 - BL Factor: Bl - 18.1 T · m - Effective Moving Mass: Mms - 71 g - Equivalent Cas air load: Vas - 136 liters - Effective piston area: Sd - 0.086 m2 - Max. linear excursion (mathematical): Xmax - 4.8 mm - Voice-coil inductance @ 1 kHz: Le1K - 1.2 mH - Half-space efficiency: Eff - 5.0% Mounting Information: - Overall Diameter: 388 / 15.3 mm/inch - Bolt Circle Diameter: 369 - 373 / 14.5 - 14.7 mm/inch - Bolt Hole Diameter: 5.5 / 0.21 mm/inch - Front Mount Baffle Cut-out: 357 / 14.60 mm/inch - Rear Mount Baffle Cut-out: 358 / 14.09 mm/inch - Depth: 161 / 6.34 mm/inch - Volume occupied by the driver: 2.9 / 0.10 liters/ft3 Shipping Information: - Net Weight: 3.8 / 8.38 kg/lbs - Shipping Weight: 4.8 / 10.58 kg/lbs