REDCATT 61FIND

16Ω

Mid Bass

Nominal diameter6.5″ / 165 mm
Resonance130 Hz
Q factor0.62
Sensitivity90.8 dB
Linear excursion± 3.6 mm
Program Power300 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 90.8dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 130Hz
  • Mechanical quality factor QMS 5.13
  • Electrical quality factor QES 0.71
  • Total quality factor QTS 0.62

Large signal parameters

  • Maximum linear excursion (one way) xmax 3.6mm
  • Air volume displaced at xmax VD 48cm³
  • Power handling P 150W
  • Program power Pmax 300W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 14.9Ω
  • Inductance (1kHz) LE 0.92mH
  • VC Diameter 50.8mm
  • Winding height HVC 12.6mm
  • Winding material Copper Clad Aluminium
  • Former material kapton

Magnet

  • Force factor Bl 15.6N/A
  • Motor constant Bl/√RE 4.05N/√W
  • Air gap height HAG 8mm
  • Material Ferrite

Diaphragm

  • Effective diameter 130mm
  • Effective area SD 133cm²
  • Moving mass MMS 14.3g
  • Moving mass (without air load) MMD 13.2g
  • Material Paper

Suspensions

  • Stiffness KMS 9.52N/mm
  • Compliance CMS 105µm/N
  • Equivalent volume to the compliance VAS 2.64L
  • Mechanical resistance RMS 2.28N·s/m
  • Surround material Fabric
  • Spider material Nomex

Dimensions

  • Nominal diameter 6.5
  • 165mm
  • Overall diameter 165mm
  • Baffle cutout diameter 145mm
  • Mounting depth 78mm
  • Volume occupied by the driver (estimated) 1.1L
  • Net weight 2.7kg
REDCATT 61FIND SPL & Impedance
REDCATT 61FIND Dimensions

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