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S220-6-222 Sandwich  Bass 

Vented box design parameters:

Vb: 30L, Fres: 23Hz with passive radiator, -12dB @ 25Hz, Q: 0.47 (optimal A/V alignment)
Vb: 25L, Port diameter: 70mm, Length: 230mm, Fres: 40Hz, F-3dB: 43Hz, Q: 0.50
Vb: 40L, Port diameter: 70mm, Length: 155mm, Fres: 37Hz, F-3dB: 37Hz, Q: 0.43 (extended bass)

Closed Box design parameters:

Vb: 12L, -11dB @ 40Hz, F-3dB: 69Hz, Q: 0.71 (typical)
Vb: 25L, -8dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)

Highlights

8.5 inch sandwich cone bass with high efficiency for 2 or 3-way designs.
Large sized voice coil with 55mm titanium voice coil former.
Big, underhung 120mm Neodymium magnet system for very low distortion.

 

S220-06-222_DimWeb-Draht.png

Dome material  Sandwich
Application      Bass
Overall diameter  220 MM
Cutout Diameter/Square      191 MM
Overall depth  112.5 MM
Motor assembly depth  49.5
Motor assembly diameter  120
   

Main Features

underhung motor design
55mm Titanium VC Former
Soft Rubber Surround
Vented VC, Pole Piece & Spider
31 HZ - 1 KHZ in ventilierter Box

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Mechanical Data

Specification        Value Unit
Overall diameter        220 mm
Cutout Diameter/Square          191 mm
Min. frontplate thickness    9 mm
Overall depth              112.5 mm
Motor assembly depth          49.5 mm
Motor assembly diameter    120 mm
Screwfitting              DIN 7984 / Ø 4.50 mm
Terminal        +: 6.3 x 0.8 / -: 4.8 x 0.8 mm
Shipping weight (pair)          9.5 Kg
Shipping box size (pair)   250/290/250 mm
   

Thiele/Small Parameters

Specification        Value  Unit
Sensitivity (2.83V / 1m) Spl 91.5 dB
DC-resistance  Re 6.52 Ohm
Resonance frequency  Fs 25 Hz
Equivalent volume of air  Vas 89.68 ltr
Mechanical Q      Qms 3.83  
Electrical Q  Qes 0.27  
Total Q      Qts 0.26  
Effective piston area  Sd 224 Cm2
Moving mass      Mms 32.15 g
Suspension compliance CMs 1.26 mm/n
Mechanical resistance      Rms 1.32 Kg*s
   

voice coil parameters

Specification        Value  Unit
Power handling  P 150 W
Linear excursion  Xmax +/-5.25 mm
Voice coil diameter    55 mm
Voice coil former material         Ti  
Voice coil material    Cu  
Voice coil inductance  Le 0.36 mH
Force factor      Bl 10.95 N/A
Motor type      Underhung    
Ferrofluid filling        No  
   

Frequency Response [DB]

FRQ_S220-6-222_prog.png

Impedance [Ohm]

IMP_S220-6-222_prog.png

Harmonic Distortion [%]

S220-6-222-DIST.png

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