Peerless STW-325F75AL00-06

Subwoofer

Nominal diameter12″ / 325 mm
Resonance30 Hz
Q factor0.59
Sensitivity87.9 dB
Linear excursion± 9 mm
Program Power1600 W
Discontinued
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 87.9dB
  • Frequency response 20 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 30Hz
  • Mechanical quality factor QMS 16.09
  • Electrical quality factor QES 0.61
  • Total quality factor QTS 0.59

Large signal parameters

  • Maximum linear excursion xmax 9mm
  • Air volume displaced at xmax VD 562cm³
  • Power handling P 800W
  • Program power Pmax 1600W

Voice Coil

  • Nominal impedance Z 6Ω
  • DC resistance RE 4.7Ω
  • Inductance (1kHz) LE 1.47mH
  • VC Diameter 51.7mm
  • Former material GF

Magnet

  • Force factor Bl 16.6N/A
  • Motor constant Bl/√RE 7.67N/√W
  • Air gap height HAG 20mm

Diaphragm

  • Effective diameter 282mm
  • Effective area SD 625cm²
  • Moving mass MMS 181g
  • Moving mass (without air load) MMD 170g

Suspensions

  • Stiffness KMS 7.19N/mm
  • Compliance CMS 139µm/N
  • Equivalent volume to the compliance VAS 80.2L
  • Mechanical resistance RMS 2.12N·s/m

Dimensions

  • Nominal diameter 12
  • 325mm
  • Volume occupied by the driver (estimated) 4.7L
  • Net weight 10.38kg

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