REDCATT 41NFR

16Ω

Full-range

Nominal diameter4″ / 105 mm
Resonance98 Hz
Q factor0.37
Sensitivity88.8 dB
Linear excursion± 5.1 mm
Program Power80 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 88.8dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 98Hz
  • Mechanical quality factor QMS 5.05
  • Electrical quality factor QES 0.40
  • Total quality factor QTS 0.37

Large signal parameters

  • Maximum linear excursion (one way) xmax 5.1mm
  • Air volume displaced at xmax VD 29cm³
  • Power handling P 40W
  • Program power Pmax 80W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 12.2Ω
  • Inductance (1kHz) LE 0.58mH
  • VC Diameter 25.4mm
  • Winding height HVC 11.3mm
  • Winding material Copper
  • Former material kapton

Magnet

  • Force factor Bl 10N/A
  • Motor constant Bl/√RE 2.86N/√W
  • Air gap height HAG 5mm
  • Material Neodymium

Diaphragm

  • Effective diameter 85mm
  • Effective area SD 56.8cm²
  • Moving mass MMS 5.4g
  • Moving mass (without air load) MMD 5.1g
  • Material Paper

Suspensions

  • Stiffness KMS 2.02N/mm
  • Compliance CMS 495µm/N
  • Equivalent volume to the compliance VAS 2.1L
  • Mechanical resistance RMS 0.66N·s/m
  • Surround material Rubber
  • Spider material Nomex

Dimensions

  • Nominal diameter 4
  • 105mm
  • Overall diameter 105mm
  • Baffle cutout diameter 92mm
  • Mounting depth 51mm
  • Volume occupied by the driver (estimated) 0.21L
  • Net weight 0.54kg
REDCATT 41NFR SPL & Impedance
REDCATT 41NFR Dimensions

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