All systems go ! miniDSP UMIK-1 in UK stock now !
All systems go ! miniDSP UMIK-1 in UK stock now !
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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