SHIPPING TO USA TEMPORARILY SUSPENDED
SHIPPING TO USA TEMPORARILY SUSPENDED
DRIVE UNITS BY MANUFACTURER:
P220
Categories: 8-10 inch Bass Speakers Accuton Drive Units - All
The Accuton P220 is an adjustable high end passive radiator and is an ideal partner for the C220 range of drive units. Features include an aluminium cone, rigid multi branch chassis and large maximum excursion of ± 5.5mm.
Adjustable mass tuning is accomplished by adding / removing stainless steel weight discs giving a possible resonance range of between 20Hz - 60Hz.
The stated nominal resonance frequency of the passive radiator is taken at 3mm excursion to give a realistic value.
Here's a formula to calculate the resonant frequency :
Fres= sqrt[1/(Cms corr.) x Mms x 4 pi^2)] with Cms corr.= 1/[(1/Cms) + 1/((Vb/Vas) x Cms)] ... phew! :0)
Resonant frequency (fs) | 41Hz | DC resistance (Re) | - |
Mechanical Q factor (Qms) | - | Power handling | - |
Electrical Q factor (Qes) | - | Sensitivity (2.83V/1m) | - |
Total Q factor (Qts) | - | Chassis diameter | 220mm |
Equivalent volume (Vas) | 26.5L | Cutout diameter | 191mm |
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Delivery usually 7-10 working days if not in stock.
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I always knew that Linn should never have stopped using Hiquphon tweeters. What I don't know is why it's taken me thirty years to fit a pair in my old Kabers. It's often hard to describe sonic character ....but to pinch Linn's old line from back in the day ...they're Simply Better.(even straight out the box with soldering iron still warm)
As my Kabers are passive,I had been a little concerned that the the 8 ohm nominal impedence of the OW1 would mess with the crossover slope. I needn't have worried....if its shifted the crossover point its much for the better.
Warm thanks also to Will and Caroline for a service in keeping with the outstanding quality of the Hiquphon product.
Alan
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.