The 4-inch pure titanium dome NDT995 compression driver focuses on maximizing linearity, precision and long-term reliability. It is mainly suitable for professional line arrays and point source applications. Its motor structure features a high-flux density neodymium magnet assembly with a copper demodulation ring to reduce harmonic and intermodulation distortion. The 4" class-leading design utilizes a Kapton former, inside-outside ultralight edge wound aluminum wire and a 4-slot phase plug to deliver minimum distortion across its operating bandwidth. The high sensitivity at 110 dB, 280 Watts continuous power handling at 8 ohms, and very low recommended crossover point from 650 Hz make it ideal for integration with waveguides in two-way high-powered systems.
FeaturesRCF NDT995
RCF NDT995
Overview4.0 inch, Titanium dome, polyimide surround 280W continuous program power handling @ 8O Frequency range: 500Hz - 20kHz Kapton former, inside/outside edge wound aluminum voice coil 4-slot optimized geometry phase plug Copper inductance ring for extended response Low recommended crossover point Specifications
General specifications
Exit Throat Diameter : 1.4 inch / 36 mm
Related Impedance : 8 ohm
Program Power (watt) : 280 W
Power handling capacity : 140 W
Sensitivity : 110 dB
Frequency range : 500 - 20000 Hz
Diaphragm Material : Pure Titanium
Suspension Material : Polyimide
Suspension Design : Flat
Minimum Impedance (ohm) : 8.50 ohm
Voice Coil Diameter : 4.0 inch / 102 mm
Voice Coil Winding Material : Edgewound Aluminum
Voice Coil Former Design : Direct Drive Kapton
Number of layers : 1
Kind of layers : inside/outside
Flux Density : 2.0 T
Phase Plug Design : 4 slot
Phase Plug Material : Aluminum
Magnetics : Neodymium
Voice Coil Demodulation Ring : Copper
Thiele - small parameters
Bl factor (Bl) (T x m) : 17.60 T x m
Mounting information
Overall diameter : 146 mm / 5.75 inches
Overall height : 55 mm / 2.17 inches
Mounting : 4 x 6 mm threaded holes at 90°
Standard compliance
Safety agency : CE compliant
Shipping information
Package Height : 79 mm / 3.11 inches
Package Width : 169 mm / 6.65 inches
Package Depth : 171 mm / 6.73 inches
Package Weight : 2.92 kg / 6.44 lbs