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C220-6-221 Ceramic Bass-Midrange 

Vented box design parameters

Vb: 51L, Port diameter: 70mm, Length: 265mm, Fres: 26.5Hz, F-3dB: 34Hz, Q: 0.58 (optimal)
Vb: 83L, Port diameter: 70mm, Length: 110mm, Fres: 29Hz, F-3dB: 28Hz, Q: 0.50 (extended bass)
Vb: 43L, Port diameter: 70mm, Length: 220mm, Fres: 31Hz, F-3dB: 35Hz, Q: 0.61 (0.7dB Ripple @ 50Hz)

Closed Box design parameters

Vb: 29L, -6dB @ 40Hz, -19dB @ 20Hz, F-3dB: 50Hz, Q: 0.71 (typical)
Vb: 83L, -4.5dB @ 40Hz, -13dB @ 20Hz, F-3dB: 60Hz, Q: 0.50 (extended bass)

Highlights

8.5 inch bass-midrange for2 or 3-way floorstanders.
Medium sized voice coil with 38mm titanium voice coil former for high midrange resolution.
Version with 6 OHM impedanz

C220-06-221_DimWeb-Draht.png

Dome material Ceramic
Application Bass‑Midrange
Overall diameter 220 MM
Cutout Diameter/Square 191 MM
Overall depth  105 MM
Motor assembly depth 42 mm
Motor assembly diameter 120 mm
   

Main Features

Overhung Motor Design
38 mm Titanium VC Former
Soft Rubber Surround
Vented VC, Pole Piece & Spider
32 HZ - 2 KHZ in vented Box

TECHNOLOGY
Material
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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   105 mm
Motor assembly depth   42 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)   6.6 Kg
Shipping box size (pair)   250/290/250 mm
   

Thiele/Small Parameters

Specification   value Unit
Sensitivity (2.83V / 1m) Spl 88 dB
DC-resistance) Re 6.3 Ohm
Resonance frequency Fs 26.3 Hz
Equivalent volume of air Vas 86.2 ltr
Mechanical Q Qms 7.1  
Electrical Q Qes 0.42  
Total Q Qts 0.40  
Effective piston area Sd 224 Cm2
Moving mass Mms 30.4 g
Suspension compliance CMs 1.20 mm/n
Mechanical resistance Rms 0.71 Kg*s
   

voice coil parameters

Specification   value Unit
Power handling P 150 W
Linear excursion Xmax +/-5 mm
Voice coil diameter   38 mm
Voice coil former material   Ti  
Voice coil material   Cu  
Voice coil inductance Le 0.83 mH
Force factor Bl 8.7 N/A
Motor type   Overhung  
Ferrofluid filling   No  
   

Frequency Response [DB]

FRQ_C220-6-221_prog.png

Impedance [Ohm]

IMP_C220-6-221_prog.png

Harmonic Distortion [%]

Klirr_C220-6-221_prog.png

 

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