SHIPPING TO USA TEMPORARILY SUSPENDED
SHIPPING TO USA TEMPORARILY SUSPENDED
DRIVE UNITS BY MANUFACTURER:
SPH-8M
UK STOCK ITEM
Excellent value replacement for a huge number of 8" woofers including: Mission, Castle, Acoustic Research, Mordaunt Short, Spendor, Wharfedale, B&W and many others.
Dampened low-resonance polypropylene cone.
Robust smooth cast alloy chassis with 6 mounting holes.
Drilled pole core and large high efficiency magnet.
Very Linear frequency response.
Suitable for both reflex & infinite baffle designs.
We also stock a 5 inch version of this driver (SPH-5M) and a 6 inch version (SPH-6M).
Resonant frequency (fs) | 35 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 2.26 | DC resistance (Re) | 6.5 Ω |
Electrical Q factor (Qes) | 0.50 | Max power handling | 150W |
Total Q factor (Qts) | 0.41 | Sensitivity (2.83V/1m) | 89 dB |
Equivalent volume (Vas) | 44L | Chassis diameter | 222 mm |
SPH8M
I bought a pair of Acoustic Research AR28LS speakers back in 1985 for £129 ! After about 15 years the foam suspension had started to perish and completely failed in 2006 following a rather loud teenage party. I was never happy with the Eminence Beta-8A replacements bought from a local shop at the time, as the bass resonance was far too high. Finally decided to replace them with Monacor SPH-8M and the speakers now sound as good as new. Arrived quickly and no problems fitting. Many thanks.
Thanks for the review Pete. I remember selling the AR28LS when working for 'Hifi Markets' many moons ago - like the smaller AR18S but with some bass !
Will
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
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.