Acoustic Elegance TD15M-8

Subwoofer

Nominal diameter15″ / 381 mm
Resonance34.7 Hz
Q factor0.33
Sensitivity99.5 dB
Linear excursion± 6 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 99.5dB
  • Frequency response 30 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 34.7Hz
  • Mechanical quality factor QMS 5.09
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.33

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Maximum excursion before damage xlim 10mm
  • Air volume displaced at xmax VD 513cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.6Ω
  • Inductance (1kHz) LE 0.2mH

Magnet

  • Force factor Bl 17N/A
  • Motor constant Bl/√RE 6.62N/√W

Diaphragm

  • Effective diameter 330mm
  • Effective area SD 855cm²
  • Moving mass MMS 70g
  • Moving mass (without air load) MMD 52.9g

Suspensions

  • Stiffness KMS 3.33N/mm
  • Compliance CMS 300µm/N
  • Equivalent volume to the compliance VAS 312L
  • Mechanical resistance RMS 3N·s/m

Dimensions

  • Nominal diameter 15
  • 381mm
  • Volume occupied by the driver (estimated) 4.3L


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