SB Acoustics SB17MFC35-8

Mid Bass

Nominal diameter6″ / 152 mm
Resonance33 Hz
Q factor0.37
Sensitivity87.3 dB
Linear excursion± 5.5 mm
Program Power120 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 87.3dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 33Hz
  • Mechanical quality factor QMS 4.90
  • Electrical quality factor QES 0.40
  • Total quality factor QTS 0.37

Large signal parameters

  • Maximum linear excursion xmax 5.5mm
  • Air volume displaced at xmax VD 65cm³
  • Power handling P 60W
  • Program power Pmax 120W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.7Ω
  • Inductance (1kHz) LE 0.15mH
  • VC Diameter 35.5mm
  • Winding height HVC 16mm
  • Winding material Copper Clad Aluminium
  • Former material Glass Fiber

Magnet

  • Flux density B 1T
  • Force factor Bl 5.9N/A
  • Motor constant Bl/√RE 2.47N/√W
  • Air gap height HAG 5mm
  • Weight 0.54kg

Diaphragm

  • Effective diameter 123mm
  • Effective area SD 118cm²
  • Moving mass MMS 11.8g
  • Moving mass (without air load) MMD 10.9g
  • Material Polypropylene

Suspensions

  • Stiffness KMS 0.508N/mm
  • Compliance CMS 1970µm/N
  • Equivalent volume to the compliance VAS 39L
  • Mechanical resistance RMS 0.5N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 6
  • 152mm
  • Volume occupied by the driver (estimated) 0.63L
  • Net weight 1.56kg
  • Frame material Cast aluminium
SB Acoustics SB17MFC35-8 SPL & Impedance
SB Acoustics SB17MFC35-8 Dimensions

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