DRIVE UNITS BY MANUFACTURER:
Morel EM 1308 Midrange
The Morel EM 1308 is a high-end 54mm (2") soft dome midrange drive unit from the Elite series with a 130mm IDR aluminium faceplate. This hand assembled unit has a low resonance of just 320 Hz and a wide linear bandwidth 700Hz-5kHz, making it an good choice for a broad spectrum of designs such as high quality 3 way systems with 8-10" woofers & 1" tweeters. The response between 2-5 kHz is very linear ± 2dB or better.
Features include an Acuflex treated soft textile dome, 54mm Hexatech aluminium voice coil, a vented Neodymium magnet assembly and a critically tuned and damped aluminium rear chamber.
Power handling is excellent at 200w nominal, 1000w peak. As usual with Morel products, design and build quality are top notch.
A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 320Hz | Nominal impedance (Zn) | 8 Ω |
Effective diaphragm diameter | 54mm | DC resistance (Re) | 6.2 Ω |
Ferrofluid ? Y/N | Yes | RMS power handling | 200W |
Recommended crossover | 700Hz / 18dB | Faceplate diameter | 130 mm |
Sensitivity (2.83V/1m) | 88dB | Cutout hole diameter | 76 mm |
EM1308
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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.