RCF DRIVER. ND840
223,30 Add to cart

RCF DRIVER. ND840

223,30

Brand: RCF
Article number: ND840

  • 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

Description

  • 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
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.

  • General specifications
    • 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 Material: Edgewound Aluminium
    • Voice Coil Former Design: Direct Drive Kapton
    • Number of layers: 1
    • Kind of layers: inside/outside
    • Flux Density: 2.0 T
    • Phase Plug Design: 3 slot
    • Phase Plug Material: Aluminium
    • Magnetics: Neodymium
    • Voice Coil Demodulation Ring: Copper

  • Thiele – small parameters
    • BL factor (BL): 12.30 T x m

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

  • Standard compliance
    • CE marking: Yes

  • Size
    • Weight: 1.4 kg / 3.09 lbs

  • Shipping informations
    • Package Depth: 155 mm / 6.1 inches
    • Package Height: 85 mm / 3.35 inches
    • Package Weight: 1.7 kg / 3.75 lbs
    • Package Width: 160 mm / 6.3 inches

Additional information

Weight 0107.21 kg
Dimensions 155 × 160 × 85 cm
Brand

Exit Throat Diameter

Program Power

220 W

Power handling capacity

110 W

Sensitivity

109 dB

Frequency Range

500 – 20000 Hz

Diaphragm Material

Suspension Material

Suspension Design

Minimum Impedance

7.00 ohm

Voice coil diameter

Voice Coil Material

Edgewound Aluminium

Voice Coil Former Design

Number of layers

Kind of layers

Flux Density

Phase Plug Design

Phase Plug Material

Magnetics

Voice Coil Demodulation Ring

BL factor (BL)

Overall diameter

Overall height

Mounting

CE marking

Weight

Package Depth

Package Height

Package Weight

Package Width