8.5 inch 6 ohm Ceramic Bass / Midrange.
The Accuton C220-6-221 Bass / Midrange is an esoteric 8.5 inch drive unit primarily intended for 2 and 3 way floor standing loudspeaker designs.
This high end driver features a ceramic (Sapphire) cone, soft rubber 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 very good midrange resolution / extension for a unit of this size.
This drive unit is also available in 11 ohms impedance (for tube amps or parallel array) here : C220-11-221
Full datasheets can be downloaded from the bottom of this page.
Here are some box alignment examples:
Vb: 51L, Port diameter: 70mm, Length: 265mm, Fres: 26.5Hz, F-3dB: 34Hz, Q: 0.58 (optimal)
Vb: 83L, Port diameter: 70mm, Length: 110mm, Fres: 29Hz, F-3dB: 28Hz, Q: 0.50 (extended bass)
Vb: 43L, Port diameter: 70mm, Length: 220mm, Fres: 31Hz, F-3dB: 35Hz, Q: 0.61 (0.7dB Ripple @ 50Hz)
Vb: 29L, -6dB @ 40Hz, -19dB @ 20Hz, F-3dB: 50Hz, Q: 0.71 (typical)
Vb: 83L, -4.5dB @ 40Hz, -13dB @ 20Hz, F-3dB: 60Hz, Q: 0.50 (extended bass)
A matching passive radiator is available : Accuton P220
- Ultra hard ceramic cone (Corundum / Sapphire)
- 220mm diameter chassis with protective grille
- High power 38mm voice coil assembly
- Overhung motor, titanium VC former
- 32 Hz - 2 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)
Built to order - contact us for a lead time.