accuton C220-6-222

Mid Bass

Nominal diameter8.5″ / 220 mm
Resonance29.5 Hz
Q factor0.26
Sensitivity90.2 dB
Linear excursion± 6 mm
Program Power300 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 90.2dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 29.5Hz
  • Mechanical quality factor QMS 5.61
  • Electrical quality factor QES 0.27
  • Total quality factor QTS 0.26

Large signal parameters

  • Maximum linear excursion xmax 6mm
  • Air volume displaced at xmax VD 134cm³
  • Power handling P 150W
  • Program power Pmax 300W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.2Ω
  • Inductance (1kHz) LE 0.37mH
  • VC Diameter 55mm
  • Winding material Copper
  • Former material Titanium

Magnet

  • Force factor Bl 11.7N/A
  • Motor constant Bl/√RE 4.35N/√W
  • Diameter 120mm
  • Height 50mm

Diaphragm

  • Effective diameter 169mm
  • Effective area SD 224cm²
  • Moving mass MMS 28g
  • Moving mass (without air load) MMD 25.5g
  • Material Ceramic

Suspensions

  • Stiffness KMS 0.962N/mm
  • Compliance CMS 1040µm/N
  • Equivalent volume to the compliance VAS 74L
  • Mechanical resistance RMS 0.93N·s/m

Dimensions

  • Nominal diameter 8.5
  • 220mm
  • Overall diameter 220mm
  • Baffle cutout diameter 191mm
  • Overall depth 113mm
  • Flange thickness 9mm
  • Mounting depth 104mm
  • Volume occupied by the driver (estimated) 1.1L
accuton C220-6-222 Impedance
accuton C220-6-222 SPL
accuton C220-6-222 Distortion
accuton C220-6-222 Dimensions

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