PowerBass 3XL-1202D

2x1Ω
2x2Ω

Subwoofer

Nominal diameter12″ / 305 mm
Resonance29.5 Hz
Q factor0.45
Sensitivity85.2 dB
Linear excursion± 24 mm
Program power1700 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 85.2dB
  • Frequency response 25 - 450Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 29.5Hz
  • Mechanical quality factor QMS 3.43
  • Electrical quality factor QES 0.52
  • Total quality factor QTS 0.45

Large signal parameters

  • Maximum linear excursion (one way) xmax 24mm
  • Air volume displaced at xmax VD 1274cm³
  • Power handling P 850W
  • Program power Pmax 1700W
  • Peak power Ppeak 1700W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 3.8Ω
  • Inductance (1kHz, in series, estimated) LE 3.66mH
  • VC Diameter 76mm

Magnet

  • Force factor (in series) Bl 20.4N/A
  • Motor constant Bl/√RE 10.5N/√W
  • Weight 13.32kg

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 531cm²
  • Moving mass (including air load) MMS 288g
  • Moving mass MMD 280g
  • Material Paper Kraft

Suspensions

  • Stiffness KMS 9.93N/mm
  • Compliance CMS 101µm/N
  • Equivalent volume to the compliance VAS 40.3L
  • Mechanical resistance RMS 15.6N·s/m
  • Surround material Foam Rubber

Dimensions

  • Nominal diameter 12
  • 305mm
  • Baffle cutout diameter 280mm
  • Mounting depth 189mm
  • Volume occupied by the driver (estimated) 2.4L
  • Frame material Aluminium

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