Alu dome shape is quite different from the Be I think, so it would need a different waveguide I guess
Greetings!!
Dear friends, we need your help)
I decided to update the tweeters, I want to replace Morel et338 with Bliesma t34, but due to the lack of the opportunity to listen live, I have to focus on reviews .. And the reviews turned out to be contradictory .. They write about T34B that it is richer in timbre, but they build the stage worse, worse directionality and worse images than T34A .. They also write that beryllium is brighter and more bright than T34A ..
If anyone has experience comparing, it will be very interesting to hear your opinion.
2kHz/12db
Dear friends, we need your help)
I decided to update the tweeters, I want to replace Morel et338 with Bliesma t34, but due to the lack of the opportunity to listen live, I have to focus on reviews .. And the reviews turned out to be contradictory .. They write about T34B that it is richer in timbre, but they build the stage worse, worse directionality and worse images than T34A .. They also write that beryllium is brighter and more bright than T34A ..
If anyone has experience comparing, it will be very interesting to hear your opinion.
2kHz/12db
I have the T34A in some in-wall speakers that I built. They are very nice tweeters. The large dome size has an effortlessness that is reminiscent of AMT tweeters when playing cymbals. It also allows me to use first-order filter, which I prefer. I've been happy with them. I have not heard the T34B. I avoid Beryllium because the toxicity is a turn-off for me. But toxicity aside, I think the T34A is already beyond the point of diminishing returns and I doubt you'd do much better with the T34B.
The biggest downside to all of the Bliesma drivers is the cost. Lately I've been experimenting with using a MarkAudio Alpair 7ms as a tweeter, and find that it is nearly as good as the Bliesmas in that role and significantly less expensive. But if you have the budget, the Bliesmas are great.
Surely Beryllium or Aluminium or even Softyllium tweeters deserve flush mounting? Once you've spent those coins on those fancyllium drivers...
I'm far from claiming it's the best, but certainly a good starting point: https://cults3d.com/en/3d-model/various/ath-dome-t34b
BTW, it's amazing how such a shallow waveguide can do wonders with a suitable dome tweeter (the deeper the dome, the better - for this reason the T34A is even a bit more favourable).
BTW, it's amazing how such a shallow waveguide can do wonders with a suitable dome tweeter (the deeper the dome, the better - for this reason the T34A is even a bit more favourable).
Do you have any measurements or comparison of this WG with the T34B and A? With the deeper wavegudies the A version is pretty bad ...
This all stems from comparative simulations (which, for rigid domes, match the reality very well):
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7349881
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354950
Deeper waveguides can behave differently. Only beware that for such wide-radiating sources, the shape of the enclosure around the waveguide becomes as important.
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7349881
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354950
Deeper waveguides can behave differently. Only beware that for such wide-radiating sources, the shape of the enclosure around the waveguide becomes as important.
And this is what a good waveguide can do for you, which is just amazing -
1) in a waveguide:
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354055
2) the same dome tweeter in a flat baffle:
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354090
1) in a waveguide:
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354055
2) the same dome tweeter in a flat baffle:
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7354090
How would you know wich is the best?
Anyway, best for what?
Like someone wants the best tire for its car. There are many good choices and probably all is slightly different in some ways. So which is the best? It depends on many factors.
Somasonus WG's for the T34B looks really good from the published measurements, but someone maybe looks for a different behaving WG.
If you do a little searching you will find some info in this thread.
By the way, the treble has new midrange drivers to work with. Plays even better now.https://www.hifisentralen.no/forumet/threads/8x12_toms-anlegg.30677/page-296#post-3771951
That's the design we can buy at Cults3d? (For a very fair price!)
And you recommen it also for the T34A but it's not tested?
Do you know how many mm the B dome is curved and how much the A dome? I don't have any T34 here, T25 is enough for my uses.
https://www.diyaudio.com/community/...he-easy-way-ath4.338806/page-626#post-7354950
8mm already seems to be to much?
It has been some time since I played with this, but I wouldn't expect T34A to work optimally in that waveguide, which was really optimized for the T34B.
T34B has a 7mm deep dome, while T34A is 10.5 mm, allowing for even a wider coverage, so the waveguide should also be a bit different (shallower, basically).
- It's possbile to simulate this easily (including an enclosure) with the tools I've been working on: https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7353694 and either ABEC or AKABAK.
Interestingly, the smaller domes don't seem to have any advantage here.
T34B has a 7mm deep dome, while T34A is 10.5 mm, allowing for even a wider coverage, so the waveguide should also be a bit different (shallower, basically).
- It's possbile to simulate this easily (including an enclosure) with the tools I've been working on: https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7353694 and either ABEC or AKABAK.
Interestingly, the smaller domes don't seem to have any advantage here.
T34A prefers to be more like +/- 70 degrees in the waveguide, overall box size, shape and edge rounding changes thigs quite a lot with such a wide radiation. With a little bit of trial error in Ath it is possible to get something that looks like this.
