GAS Audio Power MAD S1-124

Subwoofer

Nominal diameter12″ / 300 mm
Resonance32 Hz
Q factor0.59
Sensitivity85.9 dB
Linear excursion± 8.5 mm
Program Power600 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 85.9dB
  • Frequency response 27 - 200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 4.06
  • Electrical quality factor QES 0.72
  • Total quality factor QTS 0.59

Large signal parameters

  • Maximum linear excursion (one way) xmax 8.5mm
  • Air volume displaced at xmax VD 390cm³
  • Power handling P 300W
  • Program power Pmax 600W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.1Ω
  • Inductance (1kHz) LE 2.21mH
  • VC Diameter 51mm
  • Winding material Copper

Magnet

  • Force factor Bl 9.5N/A
  • Motor constant Bl/√RE 5.4N/√W
  • Diameter 130mm
  • Material Ferrite

Diaphragm

  • Effective diameter 242mm
  • Effective area SD 459cm²
  • Moving mass MMS 121g
  • Moving mass (without air load) MMD 114g
  • Material Polypropylene

Suspensions

  • Stiffness KMS 4N/mm
  • Compliance CMS 250µm/N
  • Equivalent volume to the compliance VAS 74.7L
  • Mechanical resistance RMS 6.01N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 312mm
  • Baffle cutout diameter 278mm
  • Overall depth 136mm
  • Flange thickness 9mm
  • Mounting depth 127mm
  • Volume occupied by the driver 1.4L
  • Net weight 3.46kg
  • Frame material Steel

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