Eighteen Sound 12W750 16Ω

4Ω8Ω
16Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance55 Hz
Q factor0.33
Sensitivity96.1 dB
Linear excursion± 8 mm
Program power1200 W
Eighteen Sound 12W750 16Ω SubwooferEighteen Sound 12W750 16Ω Subwoofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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 96.1dB
  • Frequency response 50 - 4600Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 55Hz
  • Mechanical quality factor QMS 5.80
  • Electrical quality factor QES 0.35
  • Total quality factor QTS 0.33

Large signal parameters

  • Maximum linear excursion (one way) xmax 8mm
  • Air volume displaced at xmax VD 425cm³
  • Power handling P 600W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 10.4Ω
  • Inductance (1kHz) LE 1.2mH
  • VC Diameter 75mm
  • Winding height HVC 21mm
  • Winding material Aluminum

Magnet

  • Force factor Bl 23.5N/A
  • Motor constant Bl/√RE 7.29N/√W
  • Air gap height HAG 10mm
  • Material Ferrite

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 531cm²
  • Moving mass (including air load) MMS 55g
  • Moving mass MMD 46.4g
  • Material Weather protected

Suspensions

  • Stiffness KMS 6.58N/mm
  • Compliance CMS 152µm/N
  • Equivalent volume to the compliance VAS 61L
  • Mechanical resistance RMS 3.28N·s/m

Dimensions

  • Nominal diameter 12″
  • 300mm
  • Overall diameter 310mm
  • Baffle cutout diameter 280mm
  • Overall depth 148mm
  • Flange thickness 11mm
  • Mounting depth 137mm
  • Volume occupied by the driver (estimated) 3.1L
  • Net weight 7.5kg
Impedance
SPL
Eighteen Sound 12W750 16Ω Impedance
Eighteen Sound 12W750 16Ω SPL
Eighteen Sound 12W750 16Ω Dimensions
PDF fileDatasheet

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