Pride M45.12 D1

2x1Ω
2x2Ω

Subwoofer

Nominal diameter12″ / 325 mm
Resonance27.1 Hz
Q factor0.21
Sensitivity87 dB
Linear excursion± 36 mm
Program Power9000 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 87dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 27.1Hz
  • Mechanical quality factor QMS 3.77
  • Electrical quality factor QES 0.23
  • Total quality factor QTS 0.21

Large signal parameters

  • Maximum linear excursion xmax 36mm
  • Air volume displaced at xmax VD 1908cm³
  • Power handling P 4500W
  • Program power Pmax 9000W

Voice Coil

  • Nominal impedance Z 2 x 1Ω
  • DC resistance (in series) RE 1.4Ω
  • Inductance (1kHz, in series, estimated) LE 1.56mH
  • VC Diameter 101.6mm
  • Winding material Flat aluminum

Magnet

  • Force factor (in series) Bl 19.7N/A
  • Motor constant Bl/√RE 16.6N/√W
  • Diameter 256mm
  • Height 78mm

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 530cm²
  • Moving mass MMS 360g
  • Moving mass (without air load) MMD 351g
  • Material Carbon (real)

Suspensions

  • Stiffness KMS 10.8N/mm
  • Compliance CMS 93µm/N
  • Equivalent volume to the compliance VAS 37.2L
  • Mechanical resistance RMS 16.3N·s/m

Dimensions

  • Nominal diameter 12
  • 325mm
  • Overall diameter 325mm
  • Baffle cutout diameter 307mm
  • Mounting depth 260mm
  • Volume occupied by the driver 6L
  • Net weight 42.0kg
  • Frame material Aluminium
Pride M45.12 D1 Dimensions

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