GLADEN SIGMA SSW08

2x2Ω

Subwoofer

Nominal diameter8″ / 214 mm
Resonance57 Hz
Q factor0.50
Sensitivity83.7 dB
Linear excursion± 8.5 mm
Program power700 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 83.7dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 57Hz
  • Mechanical quality factor QMS 7.00
  • Electrical quality factor QES 0.54
  • Total quality factor QTS 0.50

Large signal parameters

  • Maximum linear excursion (one way) xmax 8.5mm
  • Air volume displaced at xmax VD 171cm³
  • Power handling P 350W
  • Program power Pmax 700W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 3.6Ω
  • Inductance (1kHz, in series, estimated) LE 1.82mH
  • VC Diameter 50.8mm

Magnet

  • Force factor (in series) Bl 15.8N/A
  • Motor constant Bl/√RE 8.33N/√W
  • Diameter 134mm

Diaphragm

  • Effective diameter 160mm
  • Effective area SD 201cm²
  • Moving mass (including air load) MMS 109g
  • Moving mass MMD 107g

Suspensions

  • Stiffness KMS 14.3N/mm
  • Compliance CMS 70µm/N
  • Equivalent volume to the compliance VAS 3.99L
  • Mechanical resistance RMS 5.59N·s/m

Dimensions

  • Nominal diameter 8
  • 214mm
  • Overall diameter 214mm
  • Baffle cutout diameter 183mm
  • Mounting depth 120mm
  • Volume occupied by the driver (estimated) 0.98L

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