Morel MDT29-4 (4 ohm) Textile dome tweeter
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Morel MDT29 tweeter in 4 ohm
Spec sheet: Morel MDT29-4 Tweeter 4 ohm
We have this tweeter built as a replacement and/or upgrade choice for the Kef T33A 4 ohm tweeter.
In the Kef 107 speaker with the 95mm square flange T33A, this 94mm circular flange will fit the existing recess. For a cleaner look, consider purchasing Felt Diffraction Rings and cutting them to fill the corners of the recess once the new tweeter is mounted. Look at the Morel MDT29 1" Textile Dome Tweeter, 8ohm if you have an 8ohm Kef tweeter.
We have not done this ourselves, but the feedback from customers has offered two procedures for replacing the Kef 104/2 tweeter:
1. Remove the faceplate from the tweeter, the screw holding the flange on uses a T8 Torx bit. Trim the edge of the voice coil assembly a little, maybe with a box cutter having the blade retracked enough so you can't possible cut the tweeter dome. Here is the voice coil, you can see the raised rim around the outside edge. That's all we know of the process.
Or
2. Remove the faceplate and then countersink the nut that sits slightly proud on the sliding wooden block that holds the tweeter in place.
Please call or email us with feedback on these or other methods for mounting this tweeter in your 104/2 speakers.
One of our customers told us this is a good replacement for the Infinity Emit-R tweeter on the Crescendo. According to the customer, cut outs and screw holes align perfectly. Quick connects are different, use QC250R and QC110B if not soldering this tweeter. He suggests some Kappa speakers may also use this tweeter.
Specs:
Nominal impedance: 4 ohm
Sensitivity: 92dB
Resonance frequency: 1000Hz
Dcr: 3.6 ohm
Mms: 0.45g
Sd: 6 cm2
Power: 80W
Flange diameter: 94mm
Cut out diameter: 72mm
Depth from back of flange: 27mm
ces tweeters sont exellents
j'ai longtemps hésité avant de choisir les MDT 29-4,
après avoir changé tous les condensateurs des filtres mes KEF 104-4 et procéder au remplacement de tweeters, il faut le dire, il faut bien bien attendre un bon mois de rodage avant de ce prononcer!
Le rendu est super, l'image sonore des KEF est fantastique aucune acidité ou agressivité, j'ai enfin trouvé une paire de tweeters d'origine, je vais comparer et si les MDT 29-4 sont meilleurs je n'hésiterais pas cette fois !
bonne écoute
Christian
en Anglais (Google traduction)
in English (Google translation)
Hello,
I hesitated for a long time before choosing the MDT 29-4,
after changing all the capacitors of my KEF 104-4 filters and replacing the tweeters, it must be said, you have to wait a good month of running in before deciding!
The rendering is great, the sound image of the KEFs is fantastic, no acidity or aggressiveness, I finally found a pair of original tweeters, I'm going to compare and if the MDT 29-4 are better I wouldn't hesitate this time !
good listening
Christian
beauty of a tweeter for custom jobs
Boy let me tell you, I've never been happier with a tweeter. I don't really use these for A/V or surroundsound. I listen to music 5-6 hours a day while working from home, and it ranges from quiet piano to loud techno, depending on what type of work I'm doing (and how quickly my client needs blueprints), and this is the very first tweeter I've owned that can handle it all. The tones are crystal clear, the details are re-invigorating, bringing out little things that make it so much more life-like. For example, on one of my favorite jazz tracks, I can now hear when spit builds up on the saxaphonist's reed. This is a sound I recognize because I used to play sax myself, but never did I hear that on any speakers before. That really makes listening much more enjoyable for me. Also, the soundstage is outstanding, creating a nice listening space whether I'm at my seat at the computer, which is right in the sweet-spot, or assembling some stuff at my work-bench which is definitely off-axis.
But all these other things would be meaningless if I couldn't stand to listen for long periods (and why I've always avoided metal tweeters and not really liked planar or the one AMT I've heard), like I can with these tweets. They are not harsh at all. I've had them for a little over a month now and had some heavy workloads over the holidays, working 12+ hours a day, and never once did my ears feel fatigued, regardless of if I had the techno pumping or the metal screaming. Nor have I missed any details I thought I should hear in quiet moments of a symphony. I am one happy camper, and highly recommend this tweeter for music purposes.
Thank you, Madisound!!!
Incidentally, minimal modification to these tweeters was required to fit them into my 104's. After removing the aluminum front plate from each, all I had to do was take down the raised plastic lip and three fastener bosses behind it with a sanding drum attached to my Dremel. Five minutes for each tweeter, tops. No cabinet modification of any sort was necessary.
T-