ND640
DRIVER
  • 2.5-inch Diaphragm, 1.4-inch Exit Throat / Pure Titanium Compression Driver
  • 180W continuous program power handling
  • Frequency range: 700Hz - 20kHz
  • 3-slot optimized geometry phase plug
  • 2.5-inch Diaphragm, 1.4-inch Exit Throat / Pure Titanium Compression Driver
  • 180W continuous program power handling
  • Frequency range: 700Hz - 20kHz
  • 3-slot optimized geometry phase plug
  • Titanium diaphragm
  • Copper inductance ring for extended response
  • Vented, damped, low distortion suspension system
  • Neodymium magnet assembly
The ND640 is a high performance 2.5-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.

Part Number:

  • 15129051
    ND640
    8ohm
Specifications
General specifications
Exit Throat Diameter:
1.4 inch / 36 mm
Related Impedance:
8 ohm
Program Power:
180 W
Power handling capacity:
90 W
Sensitivity:
110 dB
Frequency range:
700 - 20000 Hz
Diaphragm Material:
Pure Titanium
Suspension Material:
Pure Titanium
Suspension Design:
Double Roll
Minimum Impedance:
7.50 ohm
Voice Coil Diameter:
2.5 inch / 63 mm
Voice Coil Material:
Edgewound Aluminium
Voice Coil Former Design:
Direct Drive Kapton
Number of layers:
1
Kind of layers:
outside
Flux Density:
1 T
Phase Plug Design:
3 slot
Phase Plug Material:
Aluminium
Magnetics:
Neodymium
Voice Coil Demodulation Ring:
Copper
Thiele - small parameters
BL factor (BL):
9.80 T x m
Mounting Information
Overall diameter:
102 mm / 4.02 inches
Overall height:
40 mm / 1.57 inches
Mounting:
4 x 6 mm threaded holes at 90°
Standard compliance
CE marking:
Yes
Size
Weight:
1.06 kg / 2.34 lbs
Shipping informations
Package Depth:
155 mm / 6.1 inches
Package Height:
85 mm / 3.35 inches
Package Weight:
1.06 kg / 2.34 lbs
Package Width:
160 mm / 6.3 inches
.