DRIVE UNITS BY MANUFACTURER:
22W/8851T00
Categories: 8-10 inch Bass Speakers Scanspeak Woofers
This premium quality bass drive unit has a rigid paper cone offering an excellent transient response with impressive bass extension and very low distortion.
Scanspeak state of the art design and rugged construction result in an extended pistonic action, ensuring a smooth and well controlled response curve. Substantial power handling 170W RMS.
Available in 4 and 8 Ohms. Downloadable datasheet can be found at the bottom of this page.
This woofer is 8 Ohms ; the 4 Ohm version is here : 22W/4851T00
Resonant frequency (fs) | 21 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 5.10 | DC resistance (Re) | 6.2 Ω |
Electrical Q factor (Qes) | 0.26 | RMS power handling | 170 W |
Total Q factor (Qts) | 0.25 | Sensitivity (2.83V/1m) | 88 dB |
Equivalent volume (Vas) | 126 L | Chassis diameter | 222 mm |
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
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)!