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Accuton S220-6-222 Woofer 6 Ohm 1 piece
The Accuton S220-6-222 is a high efficiency 8.5 inch sandwich cone bass driver for 2 or 3 way designs. It has a large voice coil with 55mm titanium voice coil former.
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Accuton S220-6-222 Woofer 6 Ohm 1 piece
The Accuton S220-6-222 is a high efficiency 8.5 inch sandwich cone bass driver for 2 or 3 way designs. It has a large voice coil with 55mm titanium voice coil former.
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Short Description:
22 cm woofer with sandwich cone. A magnet system with neodymium magnets drives the speaker. It has a rear vented voice coil.
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Mechanical data:
Overall diameter / front panel 220 mm
Hole cutout 191 mm
minimum front panel thickness 9 mm
Overall height 112.5 mm
Magnet height 49.5 mm
Magnet diameter 120 mm
Screw holes Screws Din 7984 / Ø 4.50 mm
Weight (pair) 9.5 Kg
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Thiele-Small Parameter:
Sensitivity Spl 91.5 dB
Resistance(DC) Re 6.52 Ohm
Free air resonance frequency Fs 25 Hz
Equivalent volume Vas 89.68 Ltr
Mechanical quality Qms 3.83
Electrical Q factor Qes 0.27
Overall quality Qts 0.26
Effective diaphragm area Sd 224 Cm2
Moving mass Mms 32.15 G
Membrane stress compliance Cms 1.26 Mm/N
Mechanical resistance Rms 1.32 Kg*S
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Voice coil parameters:
Power handling P 150 W
Impedance 6 Ohm
Linear excursion Xmax +/-5.25 mm
Voice coil diameter 55 mm
Voice coil carrier material Ti
Conductor material Cu
Voice coil inductance Le 0.36 mH
Force factor Bl 10.95 N/A
Drive type Underhung Ferrofluid In air gap No
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Enclosure Recommendation Closed:
Vb: 12L, -11dB @ 40Hz, F-3dB: 69Hz, Q: 0.71 (typical).
Vb: 25L, -8dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)
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Enclosure Recommendation Bass Reflex:
Vb: 30L, Fres: 23Hz with passive radiator, -12dB @ 25Hz, Q: 0.47 (optimum 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)
S220-6-222
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Since 1994 the Thiel & Partner GmbH is developing, designing, producing and distributing under the registred trademark accuton® high quality loudspeaker made of stiff membrane materials like ceramics, diamond and aluminium sandwich.
It is our declared aim to be the provider of the constractional and phonetical best dynamic speaker drivers on the market. We also provide our customers an extensive support and collaboration in areas like case construction, design of the crossover and implemantation of electronic components.
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