The RCF ND940 is a high-performance 4-inch diaphragm compression driver with a 1.4-inch exit throat, designed for precise sound reproduction and high-power handling. It features a neodymium magnet assembly for superior control, ensuring high efficiency and reduced high-frequency distortion. The Kapton voice coil former and edge-wound aluminum wire enhance durability and thermal resistance, while the copper demodulation ring optimizes inductance for extended frequency response. A 4-slot phase plug design minimizes air distortion, ensuring smooth and accurate sound output, making it ideal for professional audio applications.

Product Specifications:

Exit throat diameter: 1.4 inch (36 mm)

Impedance: 8

Program power: 280W

Power handling: 140W

Sensitivity: 110 dB

Frequency range: 500 Hz – 20 kHz

Diaphragm material: Pure titanium

Suspension material: Polyimide

Suspension design: Flat

Voice coil diameter: 4.0 inch (102 mm)

Winding material: Edgewound aluminum

Former material: Kapton (Direct Drive)

Layers: Outside, single layer

Flux density: 2.0 T

Phase plug: 4-slot aluminum

Magnet type: Neodymium

Demodulation ring: Copper

Overall diameter: 140 mm (5.51 inches)

Overall height: 60 mm (2.36 inches)

Mounting: 4 6 mm threaded holes at 90

Certifications: CE compliant

Weight: 2.72 kg (6 lbs)