Accuton S220-6-221 Woofer 6 Ohm 1 piece

Short Description:

21 cm woofer with sandwich cone. It has a rear vented voice coil.

Mechanical data:

Overall diameter / front panel 220 mm

cut-out 191 mm minimum

front panel thickness 9 mm

overall height 105 mm

Magnet height 42 mm

Magnet diameter 120 mm

Screw holes For screws According to Din 7984 / Ø 4.50 Mm

Weight 3.15 Kg

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Thiele-Small Parameter:

Sensitivity Spl 88 dB

Resistance(DC) Re 5.9 Ohm

Free air resonance frequency Fs 22.1 Hz

Equivalent volume Vas 112.9 Ltr

Mechanical Q factor Qms 5.73

Electrical quality Qes 0.39

Overall quality Qts 0.37

Effective diaphragm area Sd 224 Cm2

Moving mass Mms 32.8 G

Membrane stress compliance Cms 1.58 Mm/N

Mechanical resistance Rms 0.79 Kg*S

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Voice coil parameters:

Power handling P 150 W RMS

Impedance 6 Ohm

Linear excursion Xmax +/-5 Mm

Voice coil diameter 38 Mm

Voice coil carrier material Ti

Conductor material Cu

Voice coil inductance Le 0.81 Mh

Force factor Bl 8.28 N/A

Drive type Overhanging

Ferrofluid In air gap No

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Enclosure Recommendation Closed:

Vb: 39L, -4dB @ 40Hz, -13dB @ 20Hz, F-3dB: 42Hz, Q: 0.71 (Balanced).

Vb: 101L, -4dB @ 40Hz, -10dB @ 20Hz, F-3dB: 44Hz, Q: 0.50 (Bass boost)

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Enclosure Recommendation Bass Reflex:

Vb: 66L, port diameter: 70mm, length: 300mm, Fres: 22Hz, F-3dB: 27Hz, Q: 0.58 (optimum).

Vb: 101L, port diameter: 70mm, length: 150mm, Fres: 23,5Hz, F-3dB: 24Hz, Q: 0,50 (extended bass)

Vb: 56L, port diameter: 70mm, length: 300mm, Fres: 24Hz, F-3dB: 29Hz, Q: 0.61 (0.7dB boost @ 50Hz)