Audes 40W65-8

Woofer

Nominal diameter6.5″ / 165 mm
Resonance43 Hz
Q factor0.50
Sensitivity85.5 dB
Linear excursion± 4 mm
Program Power120 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 85.5dB
  • Frequency response 40 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 43Hz
  • Mechanical quality factor QMS 2.84
  • Electrical quality factor QES 0.61
  • Total quality factor QTS 0.50

Large signal parameters

  • Maximum linear excursion xmax 4mm
  • Air volume displaced at xmax VD 53cm³
  • Power handling P 75W
  • Program power Pmax 120W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.4Ω
  • Inductance (1kHz) LE 0.8mH
  • VC Diameter 40mm
  • Winding height HVC 14mm

Magnet

  • Force factor Bl 8N/A
  • Motor constant Bl/√RE 3.16N/√W
  • Air gap height HAG 6mm
  • Weight 0.58kg

Diaphragm

  • Effective diameter 130mm
  • Effective area SD 133cm²
  • Moving mass MMS 20.4g
  • Moving mass (without air load) MMD 19.3g

Suspensions

  • Stiffness KMS 1.49N/mm
  • Compliance CMS 670µm/N
  • Equivalent volume to the compliance VAS 16.7L
  • Mechanical resistance RMS 1.95N·s/m

Dimensions

  • Nominal diameter 6.5
  • 165mm
  • Volume occupied by the driver (estimated) 0.74L
  • Net weight 1.8kg
Audes 40W65-8 SPL & Impedance
Audes 40W65-8 Dimensions

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