D.A.S. Audio 12P

Low frequency

Nominal diameter12″ / 305 mm
Resonance42 Hz
Q factor0.33
Sensitivity94.9 dB
Linear excursion± 6 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 94.9dB
  • Frequency response 50 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 42Hz
  • Mechanical quality factor QMS 10.13
  • Electrical quality factor QES 0.34
  • Total quality factor QTS 0.33

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Maximum excursion before damage xlim 11mm
  • Air volume displaced at xmax VD 324cm³
  • Power handling P 400W
  • Program power Pmax 800W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.5Ω
  • Inductance (1kHz, estimated) LE 2.1mH
  • VC Diameter 77mm
  • Winding height HVC 15mm
  • Winding material Copper
  • Former material Glass Fibre Reinforced Polymer

Magnet

  • Force factor Bl 16.8N/A
  • Motor constant Bl/√RE 6.59N/√W
  • Air gap height HAG 7mm
  • Material Ferrite

Diaphragm

  • Effective diameter 262mm
  • Effective area SD 540cm²
  • Moving mass MMS 56g
  • Moving mass (without air load) MMD 47.3g

Suspensions

  • Stiffness KMS 3.94N/mm
  • Compliance CMS 254µm/N
  • Equivalent volume to the compliance VAS 105L
  • Mechanical resistance RMS 1.46N·s/m
  • Surround material Polycotton
  • Spider material Polycotton

Dimensions

  • Nominal diameter 12
  • 305mm
  • Baffle cutout diameter 289mm
  • Volume occupied by the driver (estimated) 2.4L
  • Net weight 5.5kg
  • Frame material Injected Aluminum
D.A.S. Audio 12P Impedance
D.A.S. Audio 12P SPL
D.A.S. Audio 12P Distortion


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