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Morel CAT 328-104 Tweeter
Categories: 0.75 - 2" (19-50mm) Dome Tweeters Morel Tweeters
104mm faceplate version

UK STOCK ITEM
The Morel CAT 328-104 is a modern updated version of the legendary MDT-32S with a 104mm faceplate. Featuring a field replaceable 28mm Acuflex textile dome, a large ferrofluid cooled Hexatech aluminium voice coil, a vented ferrite magnet system and a critically tuned / damped rear chamber, this tweeter is remarkably transparent and is a very good performer at this price point. Recommended frequency use: 2000-20,000 Hz. Substantial power rating of 200w nominal, 1000w peak.
A full datasheet can be downloaded from the bottom of this page.
| Resonant frequency (fs) | 650 Hz | Nominal impedance (Zn) | 8 Ω |
| Effective diaphragm diameter | 28mm | DC resistance (Re) | 5.2 Ω |
| Ferrofluid ? Y/N | Yes | RMS power handling | 200W |
| Recommended crossover | 2khz | Faceplate diameter | 104mm |
| Sensitivity (2.83V/1m) | 90 dB | Cutout hole diameter | 72 mm |
CAT328
The MOREL CAT-328 is the recessed plate version of the CAT-308. The primary advantage of the recessed plate is that it minimizes the mild horn loading coloration that the CAT-308 faceplate creates.
There are two versions however: A 110 mm diameter version and a 104 mm version. The 104mm version takes up less front baffle space.
The MOREL CAT-328 is a very rugged, high quality tweeter. It can be crossed over at 4KHz, 6dB per octave without burning out. It also has excellent dynamic response without compression and it sounds very detailed and airy.
Thanks for the review - we agree, this is a great tweeter !
Will & Caroline
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Product as described, easy to cut & fit.
On reflection having now fitted the foam, I wish it was 15mm to 18mm or even 20mm thick. This is not a complaint. For a small speaker under 30cm high it’s perfect. For a larger speaker I feel a thicker sponge would hold its structure more pleasingly, its aesthetics, but important for the finished look.
I’ve been building my own home cinema as a complete DIY project and reached the stage where I needed some decent acoustic foam for my speaker panels (also DIY!) so I picked up 3 large sheets from here. They were sent quickly, packed well and moreover, are of excellent quality. With them being folded into the shipping box they were slightly creased but after leaving them out overnight on a flat surface, the creases fell out completely. They’re now in place and doing their job brilliantly. Cheers Willys Hifi!
The crossover was constructed well, I just need to figure out the best way to attach it to my Kef Concertos as they are bigger than the ones supplied by Kef that are mounted on the front of the baffle board.
Very nice deep bass look amazing with my custom made speaker
Great speedy delivery and very easy to fit. The plastic in my drivers had perished and they had suffered one too many parties! No need to make any adjustments (someone above did suggest that). I just screwed them in and the foam compressed into place. Before and after below (before I changed speaker number 2). Thank you!
