Scan-Speak Discovery 15M/4624G00

Mid-range

Nominal diameter6″ / 150 mm
Resonance100 Hz
Q factor0.43
Sensitivity90.3 dB
Linear excursion± 1.5 mm
Program Power180 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 90.3dB
  • Frequency response 150 - 10000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 100Hz
  • Mechanical quality factor QMS 5.62
  • Electrical quality factor QES 0.47
  • Total quality factor QTS 0.43

Large signal parameters

  • Maximum linear excursion xmax 1.5mm
  • Maximum excursion before damage xlim 8mm
  • Air volume displaced at xmax VD 11cm³
  • Power handling P 75W
  • Program power Pmax 180W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.2Ω
  • Inductance (1kHz, estimated) LE 0.13mH
  • VC Diameter 25mm
  • Winding height HVC 8mm

Magnet

  • Force factor Bl 5.3N/A
  • Motor constant Bl/√RE 2.96N/√W
  • Air gap height HAG 5mm

Diaphragm

  • Effective diameter 101mm
  • Effective area SD 75cm²
  • Moving mass MMS 6.2g
  • Moving mass (without air load) MMD 5.7g
  • Material Coated Fibre Glass

Suspensions

  • Stiffness KMS 2.44N/mm
  • Compliance CMS 410µm/N
  • Equivalent volume to the compliance VAS 3.7L
  • Mechanical resistance RMS 0.69N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 6
  • 150mm
  • Volume occupied by the driver 0.21L
  • Net weight 1.0kg
  • Frame material Die cast Aluminium
Scan-Speak 15M/4624G00 SPL & Impedance
Scan-Speak 15M/4624G00 Dimensions

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