SHIPPING TO USA TEMPORARILY SUSPENDED
SHIPPING TO USA TEMPORARILY SUSPENDED
DRIVE UNITS BY MANUFACTURER:
C220-6-222
Categories: 8-10 inch Bass Speakers Accuton Drive Units - All
The Accuton C220-6-222 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 and long throw soft rubber surround. The large Neodymium magnet and 55mm titanium voice coil former yield a high efficiency of 93dB with very low distortion levels whilst maintaining excellent midrange resolution. A high peak maximum excursion of 12mm ensures high sound levels without stress or loss of accuracy.
The spider, pole and voice coil former are fully ventilated for minimal compression and the low reflection diecast chassis has excellent strength. This driver has a substantial power rating of 150 watts.
Full datasheets can be downloaded from the bottom of this page.
Vented:
Vb: 29L, Fres: 23Hz with passive radiator, -12dB @ 25Hz, Q: 0.47 (optimal A/V alignment)
Vb: 24L, Port diameter: 70mm, Length: 200mm, Fres: 43.5Hz, F-3dB: 47Hz, Q: 0.50
Vb: 36L, Port diameter: 70mm, Length: 145mm, Fres: 40Hz, F-3dB: 39Hz, Q: 0.43 (extended bass)
Infinite baffle:
Vb: 11.5L, -12dB @ 40Hz, F-3dB: 74Hz, Q: 0.71 (typical)
Vb: 24L, -9dB @ 40Hz, F-3dB: 75Hz, Q: 0.50 (extended bass)
A matching passive radiator is available : Accuton P220
Resonant frequency (fs) | 24Hz | DC resistance (Re) | 6.7Ω |
Mechanical Q factor (Qms) | 4.4 | Power handling | 150W |
Electrical Q factor (Qes) | 0.20 | Sensitivity (2.83V/1m) | 93dB |
Total Q factor (Qts) | 0.19 | Chassis diameter | 220mm |
Equivalent volume (Vas) | 115L | Cutout diameter | 191mm |
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Been looking for a supplier of replacement drivers for some years.
Willy's HiFi had just the parts at a good price and they arrived in a couple of days.
Excellent service. Even a personal thank you hand written on the invoice.
A quick delivery and the tweeters are perfect on my mission 753 freedom speakers. Easy to fit . Highly recommend.
I’m no expert when it comes to speakers, but after some research (and a strong recommendation from ChatGPT), I went with the SB Acoustics SB65WBAC25-4 as a reference full-range speaker in this size range.
Having now tested them, I can confidently say they’re probably the best speakers I’ve ever owned. The clarity is outstanding—every detail comes through with incredible precision. The bass is surprisingly full and punchy for a speaker this size, and they handle power impressively well. For anyone looking for a high-performance compact full-range driver, these are hard to beat.
Item as described and arrived quickly - and did the job. However, I suggested that anyone replacing speaker foam makes sure they have a very large pair of sharp dressmaking scissors as it was not easy cutting to size without producing a ragged edge (which I managed to hide short of a close inspection)!