Dayton Audio DMA45-8

Full-range

Nominal diameter1.5″ / 38 mm
Resonance151 Hz
Q factor0.59
Sensitivity77.3 dB
Linear excursion± 2 mm
Program Power20 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 77.3dB
  • Frequency response 150 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 151Hz
  • Mechanical quality factor QMS 4.59
  • Electrical quality factor QES 0.68
  • Total quality factor QTS 0.59

Large signal parameters

  • Maximum linear excursion xmax 2mm
  • Air volume displaced at xmax VD 1.7cm³
  • Power handling P 10W
  • Program power Pmax 20W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.0Ω
  • Inductance (1kHz) LE 0.4mH
  • VC Diameter 19mm

Magnet

  • Force factor Bl 4.26N/A
  • Motor constant Bl/√RE 1.61N/√W

Diaphragm

  • Effective diameter 33mm
  • Effective area SD 8.6cm²
  • Moving mass MMS 1.8g
  • Moving mass (without air load) MMD 1.8g

Suspensions

  • Stiffness KMS 1.67N/mm
  • Compliance CMS 600µm/N
  • Equivalent volume to the compliance VAS 0.057L
  • Mechanical resistance RMS 0.37N·s/m

Dimensions

  • Nominal diameter 1.5
  • 38mm
Dayton Audio DMA45-8 Impedance
Dayton Audio DMA45-8 SPL
Dayton Audio DMA45-8 Dimensions

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