C220-6-221

Ceramic Bass-Midrange

Dome material	CerAMIC
Application	Bass-Midrange
Overall diameter	220 MM
Cutout Diameter	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
3D Model
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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

Mechanical Data

Specification	Value	Unit
Overall diameter	220	mm
Cutout diameter	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]

Impedance [OHM]