Eminence PF-400

Guitar Speaker

Nominal diameter15″ / 381 mm
Resonance58 Hz
Q factor0.50
Sensitivity100.2 dB
Linear excursion± 0.8 mm
Program Power800 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 100.2dB
  • Frequency response 60 - 3600Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 58Hz
  • Mechanical quality factor QMS 6.37
  • Electrical quality factor QES 0.55
  • Total quality factor QTS 0.50

Large signal parameters

  • Maximum linear excursion xmax 0.8mm
  • Air volume displaced at xmax VD 70cm³
  • Power handling P 400W
  • Program power Pmax 800W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.5Ω
  • Inductance (1kHz) LE 0.46mH
  • VC Diameter 101.6mm
  • Winding material Edge Wound Aluminum
  • Former material Polyimide

Magnet

  • Force factor Bl 18.3N/A
  • Motor constant Bl/√RE 6.72N/√W
  • Air gap height HAG 7.2mm
  • Weight 3.09kg
  • Material Ferrite

Diaphragm

  • Effective diameter 337mm
  • Effective area SD 890cm²
  • Moving mass MMS 67g
  • Moving mass (without air load) MMD 48.8g
  • Material Paper

Suspensions

  • Stiffness KMS 9.09N/mm
  • Compliance CMS 110µm/N
  • Equivalent volume to the compliance VAS 121L
  • Mechanical resistance RMS 3.83N·s/m
  • Surround material Coth

Dimensions

  • Nominal diameter 15
  • 381mm
  • Overall diameter 388mm
  • Baffle cutout diameter 357mm
  • Overall depth 152mm
  • Volume occupied by the driver 4.3L
  • Net weight 10.251kg
  • Frame material Die-cast Aluminium
Eminence PF-400 SPL & Impedance


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