The ND850 1.4 is a high frequency performance 3-inch diaphragm compression driver with a 1.4-inch exit throat featuring several state of the art technologies. The diaphragm is precision formed from 0.05mm thick pure titanium. The suspension is based on a vented and damped design in order to provide low distortion. Voice coil assembly is designed using high temperature kapton former.
FeaturesRCF ND850 1.4
RCF ND850 1.4
Overview3-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 Specifications
General specifications
Exit Throat Diameter : 1.4 inch / 36 mm
Related Impedance : 8 ohm
Program Power (watt) : 220 W
Power handling capacity : 110 W
Sensitivity : 109 dB
Frequency range : 500 - 20000 Hz
Diaphragm Material : Pure Titanium
Suspension Material : Polyester
Suspension Design : Flat
Minimum Impedance (ohm) : 8.50 ohm
Voice Coil Diameter : 3.0 inch / 76 mm
Voice Coil Winding Material : Edgewound Aluminum
Voice Coil Former Design : Straight - Kapton
Number of layers : 1
Kind of layers : outside
Flux Density : 2.0 T
Phase Plug Design : 3 slot
Phase Plug Material : Aluminum
Magnetics : Neodymium
Voice Coil Demodulation Ring : Copper
Thiele - small parameters
Bl factor (Bl) (T x m) : 13.00 T x m
Mounting information
Overall diameter : 131 mm / 5.16 inches
Overall height : 54 mm / 2.13 inches
Mounting : 4 x 6 mm threaded holes at 90°
Standard compliance
Safety agency : CE compliant
Size / Weight
Weight : 2.5 kg / 5.51 lbs
Shipping information
Package Height : 68 mm / 2.68 inches
Package Width : 153 mm / 6.02 inches
Package Depth : 155 mm / 6.1 inches
Package Weight : 2.66 kg / 5.86 lbs