GLADEN SIGMA SSW065

2x2Ω

Subwoofer

Nominal diameter6.5″ / 173 mm
Resonance56 Hz
Q factor0.53
Sensitivity81.6 dB
Linear excursion± 8.5 mm
Program power400 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 81.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 56Hz
  • Mechanical quality factor QMS 7.27
  • Electrical quality factor QES 0.57
  • Total quality factor QTS 0.53

Large signal parameters

  • Maximum linear excursion (one way) xmax 8.5mm
  • Air volume displaced at xmax VD 109cm³
  • Power handling P 200W
  • Program power Pmax 400W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 3.6Ω
  • Inductance (1kHz, in series, estimated) LE 1.36mH
  • VC Diameter 38.1mm

Magnet

  • Force factor (in series) Bl 12.7N/A
  • Motor constant Bl/√RE 6.69N/√W
  • Diameter 126mm

Diaphragm

  • Effective diameter 128mm
  • Effective area SD 129cm²
  • Moving mass (including air load) MMS 70.6g
  • Moving mass MMD 69.5g

Suspensions

  • Stiffness KMS 9.09N/mm
  • Compliance CMS 110µm/N
  • Equivalent volume to the compliance VAS 2.66L
  • Mechanical resistance RMS 3.42N·s/m

Dimensions

  • Nominal diameter 6.5
  • 173mm
  • Overall diameter 173mm
  • Baffle cutout diameter 144mm
  • Mounting depth 93mm
  • Volume occupied by the driver (estimated) 0.56L

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