RCF ND480 Compression Driver 1.4" 110W rms

Description

The ND840 is a high performance 3-inch diaphragm compression driver with a 1.4 inch exit throat featuring the smallest size of the art technology. The diaphragm are precision completely formed from pure titanium. Voice coil assembly is designed using high temperature kapton former and it is joined to the diaphragm by RCF proprietary Direct Drive kapton technology. Diaphragm suspension is designed by extensive FEM study for low distortion and low frequency range extension.

3-inch Diaphragm, 1.4-inch Exit Throat / Pure Titanium Compression Driver

220W continuous program power handling

Frequency range: 500Hz - 20kHz

3-slot optimized geometry phase plug

Titanium diaphragm

Copper inductance ring for extended response

Vented, damped, low distortion suspension system

Nedymium magnet assembly

Exit throat diameter: 1.4 inch / 36 mm
Related impedance: 8 ohm
Program power: 220 W
Power handling capacity: 110 W
Sensitivity: 109 dB
Frequency range: 500 – 20000 Hz
Diaphragm material: Pure Titanium
Suspension material: Pure Titanium
Suspension design: Double Roll
Minimum impedance: 7.00 ohm

Voice coil diameter: 3.0 inch / 76 mm
Voice coil winding material: Edgewound Aluminum
Voice coil former design: Direct Drive Kapton
Number of layers: 1
Layer configuration: inside / outside
Flux density: 2.0 T

Phase plug design: 3 slot
Phase plug material: Aluminum
Magnet type: Neodymium
Voice coil demodulation ring: Copper

Bl factor (Bl): 12.30 T·m

Overall diameter: 115 mm / 4.53 inches
Overall height: 46 mm / 1.81 inches
Mounting: 4 x 6 mm threaded holes at 90°

Safety compliance: CE
Weight: 1.4 kg / 3.09 lbs