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All systems go !
DRIVE UNITS BY MANUFACTURER:
S220-6-221
Categories: 8-10 inch Bass Speakers Accuton Drive Units - All
The Accuton S220-6-221 is an esoteric 8.5 inch (220mm) bass drive unit primarily intended for medium to large 3 way floor standing loudspeaker designs and studio monitors.
This high end driver features an ultra stiff ceramic sandwich cone, soft rubber long throw surround, large ferrite magnet and 38mm titanium former.
The spider, pole and voice coil former are fully ventilated for minimal compression. This driver has a substantial power rating of 150 watts and offers excellent immediacy with powerful, accurate transients.
Also available in 11 ohms impedance (for tube amps or parallel array) - select the impedance you require from the drop down menu.
Full datasheets can be downloaded from the bottom of this page.
Vented:
Vb: 66L, Port diameter: 70mm, Length: 300mm, Fres: 22Hz, F-3dB: 27Hz, Q: 0.58 (optimal)
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 Ripple @ 50Hz)
Infinite baffle:
Vb: 39L, -4dB @ 40Hz, -13dB @ 20Hz, F-3dB: 42Hz, Q: 0.71 (typical)
Vb: 101L, -4dB @ 40Hz, -10dB @ 20Hz, F-3dB: 44Hz, Q: 0.50 (extended bass)
Resonant frequency (fs) | 21Hz | DC resistance (Re) | 5.8Ω |
Mechanical Q factor (Qms) | 6.6 | Power handling | 150W |
Electrical Q factor (Qes) | 0.38 | Sensitivity (2.83V/1m) | 89dB |
Total Q factor (Qts) | 0.36 | Chassis diameter | 220mm |
Equivalent volume (Vas) | 116L | Cutout diameter | 191mm |
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Delivery usually 7-10 working days if not in stock.
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Swapped out the 30 yr old AlCap capacitors for the Audyn Q4 on Wills recommendation (along with a ferrofluid change). What a difference, added so much more definition and clarity. Very impressed. Audyns are a fair bit bigger size wise but fitted easily enough on the board and the access aperture on the TDL Studio 1's.
Good quality, fast postage, perfect! Thanks
Can fault the service and you always seem to have what others don’t, this can be critical when your hobby involves restoring vintage hifi .
Excellent driver and superb service and advice from Willy's hi-fi. Would certainly recommend and I will definitely be using again. Super fast delivery and great prices
They offer great advice genuinely helpful and knowledgeable.
Excellent service.
Very happy with this replacement part, especially once id fitted it correctly!! Sounds great so know where to go when the other one fails. 👍