8.5 inch 6 ohm Ceramic Sandwich Bass Unit.
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.
Here are some box alignment examples:
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)
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)
- Ultra rigid ceramic sandwich cone (Corundum / Sapphire)
- 220mm diameter chassis with protective grille
- High power 38mm voice coil assembly
- Overhung motor, titanium VC former
- 31 Hz - 1 KHz in vented box
- Long throw max. 10mm
- Large ferrite magnet
|Resonant frequency (fs)
||DC resistance (Re)
|Mechanical Q factor (Qms)
|Electrical Q factor (Qes)
|Total Q factor (Qts)
|Equivalent volume (Vas)
Click icons to download :
Data 3D View (large file)
Priced as singles, including VAT. Supplied as matched pairs only.
Free shipping to the UK mainland.
Delivery usually 7-10 working days if not in stock.