P.Audio 15BM-500B v3

Low frequency

Nominal diameter15″ / 381 mm
Resonance41 Hz
Q factor0.37
Sensitivity97.4 dB
Linear excursion± 4.8 mm
Program Power1000 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 97.4dB
  • Frequency response 45 - 3500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 41Hz
  • Mechanical quality factor QMS 4.21
  • Electrical quality factor QES 0.41
  • Total quality factor QTS 0.37

Large signal parameters

  • Maximum linear excursion xmax 4.8mm
  • Air volume displaced at xmax VD 411cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.5Ω
  • Inductance (1kHz) LE 0.43mH
  • VC Diameter 82.5mm
  • Winding height HVC 19.6mm
  • Winding material CCA-W
  • Former material Glass fiber

Magnet

  • Flux density B 1.1T
  • Force factor Bl 17.8N/A
  • Motor constant Bl/√RE 7.57N/√W
  • Air gap height HAG 10mm
  • Material Ferrite

Diaphragm

  • Effective diameter 332mm
  • Effective area SD 855cm²
  • Moving mass MMS 90g
  • Moving mass (without air load) MMD 72.4g
  • Material Paper

Suspensions

  • Stiffness KMS 5.65N/mm
  • Compliance CMS 177µm/N
  • Equivalent volume to the compliance VAS 183L
  • Mechanical resistance RMS 5.51N·s/m
  • Surround material Cloth
  • Spider material Cotton (Single)

Dimensions

  • Nominal diameter 15
  • 381mm
  • Overall diameter 392mm
  • Baffle cutout diameter 353mm
  • Overall depth 174mm
  • Flange thickness 16mm
  • Mounting depth 158mm
  • Volume occupied by the driver (estimated) 4.9L
  • Net weight 10.2kg
  • Frame material Aluminium
P.Audio 15BM-500B v3 SPL & Impedance
P.Audio 15BM-500B v3 Dimensions

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