SUPRAVOX 215 EXC

Full-range

Nominal diameter8″ / 215 mm
Resonance50 Hz
Q factor0.31
Sensitivity102.9 dB
Linear excursion± 5 mm
Program Power40 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 102.9dB
  • Frequency response 50 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 50Hz
  • Mechanical quality factor QMS 9.23
  • Electrical quality factor QES 0.32
  • Total quality factor QTS 0.31

Large signal parameters

  • Maximum linear excursion xmax 5mm
  • Air volume displaced at xmax VD 130cm³
  • Power handling P 20W
  • Program power Pmax 40W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 4.0Ω
  • Inductance (1kHz, estimated) LE 0.32mH

Magnet

  • Force factor Bl 6.23N/A
  • Motor constant Bl/√RE 3.12N/√W
  • Material Electromagnet

Diaphragm

  • Effective diameter 182mm
  • Effective area SD 261cm²
  • Moving mass MMS 7g
  • Moving mass (without air load) MMD 3.9g

Suspensions

  • Stiffness KMS 1N/mm
  • Compliance CMS 1000µm/N
  • Equivalent volume to the compliance VAS 96.5L
  • Mechanical resistance RMS 0.24N·s/m
  • Surround material Paper

Dimensions

  • Nominal diameter 8
  • 215mm
  • Overall diameter 227mm
  • Baffle cutout diameter 212mm
  • Overall depth 147mm
  • Flange thickness 10mm
  • Mounting depth 137mm
  • Volume occupied by the driver (estimated) 1.6L
  • Frame material Aluminium
SUPRAVOX 215 EXC Impedance
SUPRAVOX 215 EXC SPL 30°
SUPRAVOX 215 EXC SPL 60°
SUPRAVOX 215 EXC Impulse response
SUPRAVOX 215 EXC Waterfall


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