DRIVE UNITS BY MANUFACTURER:
SPH-165CP
Categories: 6-8 inch Bass / Midrange Speakers Monacor Drive Units
DISCONTINUED BY MANUFACTURER.
This 6.5 inch unit features include a damped woven carbon fibre cone, a soft butyl rubber surround, a powerful 120mm ferrite magnet system, a rigid diecast chassis and a vented pole piece. This long throw design has a smooth frequency response with very good bass extension - 30Hz is achievable from cabinets of around 18 litres.
Resonant frequency (fs) | 30 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 4.85 |
DC resistance (Re) | 6.3 Ω |
Electrical Q factor (Qes) | 0.33 | Max power handling | 120W |
Total Q factor (Qts) | 0.31 | Sensitivity (2.83V/1m) | 89 dB |
Equivalent volume (Vas) | 38L | Chassis diameter (pincushion style) |
165 mm |
SPH165CP
I purchased a pair of these last year to repair my Castle Avon speakers than had a failed driver. These drop straight in to the original mounting holes and don’t require any fettling. There is a slight gap as they don’t quite fill the original space but with the grilles on you wouldn’t know. I expect you could 3D print some surrounding trim if you wanted to. They sound great, a bit more punch than the originals. I’ve got them paired with some Sony separates and a Rega Turntable. They really sing with a decent CD player. Fantastic service from Willys Hifi. Great price, well packaged and quick dispatch. Even included a handwritten note! Thanks!
Thanks for the review Jonathan - enjoy the music !
Will & Caroline
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.