DRIVE UNITS BY MANUFACTURER:
Morel CAT 298-94 Tweeter
Great upgrade for the TDL RTL series, Heybrook HB1, Mission 737R and many others requiring a 20/25mm dome tweeter with 94mm faceplate, such as the Vifa D20/D25 series.
The Morel CAT 298 is a modern updated version of the legendary MDT-29. Featuring a field replaceable 28mm Acuflex textile dome, a large ferrofluid cooled copper voice coil, a ferrite magnet system and an aluminium faceplate, this tweeter can sound very sweet and is a excellent value. Recommended frequency use: 2000-20,000 Hz. High power rating of 80w nominal, 1000w peak.
A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 900 Hz | Nominal impedance (Zn) | 8 Ω |
Effective diaphragm diameter | 28mm | DC resistance (Re) | 5.2 Ω |
Ferrofluid ? Y/N | Yes | RMS power handling | 80W |
Recommended crossover | 2khz | Faceplate diameter | 94mm |
Sensitivity (2.83V/1m) | 89 dB | Cutout hole diameter | 72 mm |
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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)!