Peerless FCP-1840R03-08

Subwoofer

Nominal diameter18″ / 457 mm
Resonance41 Hz
Q factor0.47
Sensitivity94 dB
Linear excursion± 12.3 mm
Program power1600 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 94dB
  • Frequency response 30 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 41Hz
  • Mechanical quality factor QMS 17.60
  • Electrical quality factor QES 0.49
  • Total quality factor QTS 0.47

Large signal parameters

  • Maximum linear excursion (one way) xmax 12.3mm
  • Air volume displaced at xmax VD 1501cm³
  • Power handling P 800W
  • Program power Pmax 1600W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.5Ω
  • Inductance (1kHz) LE 0.991mH
  • VC Diameter 100mm

Magnet

  • Force factor Bl 26.8N/A
  • Motor constant Bl/√RE 11.4N/√W
  • Air gap height HAG 10mm
  • Material Ferrite

Diaphragm

  • Effective diameter 394mm
  • Effective area SD 1220cm²
  • Moving mass (including air load) MMS 252g
  • Moving mass MMD 223g
  • Material Fabric

Suspensions

  • Stiffness KMS 16.4N/mm
  • Compliance CMS 61µm/N
  • Equivalent volume to the compliance VAS 128L
  • Mechanical resistance RMS 3.69N·s/m
  • Surround material Fabric

Dimensions

  • Nominal diameter 18
  • 457mm
  • Volume occupied by the driver (estimated) 4.8L
  • Net weight 10.6kg
  • Frame material Cast Aluminium
Peerless FCP-1840R03-08 SPL & Impedance

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