Having listened extensively to several of Diesis Audio speakers i have to admit they play very well if you agree to listen only to the music they like.
Would rather grab an equivalently priced Magico, Wilson or Sonus Faber without thinking twice.
Would rather grab an equivalently priced Magico, Wilson or Sonus Faber without thinking twice.
For any competitive industry, there are, essentially, three market forces pulling on a company:
1) How large is a market, and what drives customer buying decisions there.
2) What is their business' 'core-competency' (what is it that they know how to do (presumably, well).
3) What is their competitive position (what do their competitors do well).
For a company to make a move in to a new segment of their market is, of course, fundamentally driven by the desire to expand profits. Market success, however, is determined largely by the three basic forces above.
Before deciding to enter a new market segment, companies must assess; 1) are customers spending enough in that segment to make it financially interesting, 2) how strong is the existing competition there and 3) do we have the competency to successfully compete? Should a market segment be deemed too small, or the competition there too strong, or that they are lacking in the core competency to successfully compete, entering just the same highly risks failure. I suspect that this is why we often don't see a rush for companies which are successful in one market segment, to to enter some other. A failed entry could do great damage to the financial health of a small company, such as are most in high-end audio.
1) How large is a market, and what drives customer buying decisions there.
2) What is their business' 'core-competency' (what is it that they know how to do (presumably, well).
3) What is their competitive position (what do their competitors do well).
For a company to make a move in to a new segment of their market is, of course, fundamentally driven by the desire to expand profits. Market success, however, is determined largely by the three basic forces above.
Before deciding to enter a new market segment, companies must assess; 1) are customers spending enough in that segment to make it financially interesting, 2) how strong is the existing competition there and 3) do we have the competency to successfully compete? Should a market segment be deemed too small, or the competition there too strong, or that they are lacking in the core competency to successfully compete, entering just the same highly risks failure. I suspect that this is why we often don't see a rush for companies which are successful in one market segment, to to enter some other. A failed entry could do great damage to the financial health of a small company, such as are most in high-end audio.
Yes, this ^^^
Peterbilt make good profits selling trucks. Ferrari makes good profits selling sports cars. But neither tries to compete in the others arena. They do not have the expertise in the new market, and the existing competition in that new market is intense.
Peterbilt make good profits selling trucks. Ferrari makes good profits selling sports cars. But neither tries to compete in the others arena. They do not have the expertise in the new market, and the existing competition in that new market is intense.
Except for all the time delayed stuff coming from the back of the driver. This drives me to distraction. Vert few OBs are fully dipole so the amount and nature changes from OB to OB.
But i do agree that a simple baffle has some attractions. They just wear off quickly.
These started out OB. But i made them better. https://www.t-linespeakers.org/FALL/2buck.html (over 20 years ago)
No internal airspace resonances (now just free in the room), but a big floppy baffle only that is very hard to make as non-resonate structure wise than a box.
dave
I've never found KEF speakers all that good. Even their LS3/5As were well short of the design's potential.
Could you expand on that Brett? Googling it suggests these guys make horns, these particualrily ugly (but interesting given that the XO is going to be near the qaurte-wave spacing criteria.
dave
Once tweaked & mirror imaged they sounded quite good for the day. They would not hold up against good present day speakers.
dave
Historically i have had the same experiences, but the company is fascinating, and many good loudspeakers came of them making their drivers avaiable.
The LS3/5A is for a specific purpose. I always had a love/hate relationship. And the last time i restored a pair, and compared to something of simialr size on hand, and finding the LS3 kinda boxy in comparisonm so now they are just history to me.
dave
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Hmm… i did get to have unlimited reign to do what i wanted to a set of Decca factory prototypes with London and an 8” midbass, XO at 1kHz. They provided some very memorable nights of listening (in the Naim/NAIM160/Linn days)
dave
dave
Marchisotto was the designer for some of those Dahlquists.
Before Marchisotto's Nola, there was Alòn, but the Alòns I liked had only one bass driver in a sealed cabinet, and only the midrange was open baffle.
I'm sitting on parts for an homage to those....
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I can verify that it works well if you get the crossover right.
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That sounds awesome. I will be doing some research on the Zellaton
I own a pair. They are decent. Good for an old speaker
Do you have any tips for the crossover design? I am currently working on a project that includes an open baffle bass with a low frequency crossover to monopole
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@Bryguy Like any OB woofer, you need to set your electrical LP filter very low, much lower than your acoustical crossover point. It's getting the woofer right that is difficult. I tried a lot of DSP EQ, but found that just getting the low pass right to flatten the OB woofer worked much better. Figure out how you can flatten the woofer response, then you'll know what to do with the monopole above it. Count on losing about 10dB of sensitivity on the woofer. You'll need to listen a lot to get the balance right, as the bass will have a lot more room sound than the monopole. It can be tricky to measure, but not too hard to hear.
From there I didn't have too much trouble with the horn. I tried some back firing tweeters, but found they had to be surprisingly loud to make a difference.
From there I didn't have too much trouble with the horn. I tried some back firing tweeters, but found they had to be surprisingly loud to make a difference.
All of your advice here is very relevant to me. Thank you. When you say set my electrical LP low, I assume you mean to have an electrical filter at a low frequency? If so, that is my plan 🙂 I will be crossing over somewhere between 400 and 500Hz most likely.
That said, the monopole I am pairing with is very capable of extension even down to 200Hz. What ballpark are we talking here when you say low?
That said, the monopole I am pairing with is very capable of extension even down to 200Hz. What ballpark are we talking here when you say low?
It's a little outside the scope of this thread. But if you look at this project:
https://www.diyaudio.com/community/threads/fast-fun-inexpensive-ob-project.110583/post-6507949
You will see that for an acoustic crossover circa 700hz, the woofer has an electrical low pass under 100Hz! It needs that to flatten the response on OB.
Feel free to ask questions over there, so that we don't hijack this thread.
https://www.diyaudio.com/community/threads/fast-fun-inexpensive-ob-project.110583/post-6507949
You will see that for an acoustic crossover circa 700hz, the woofer has an electrical low pass under 100Hz! It needs that to flatten the response on OB.
Feel free to ask questions over there, so that we don't hijack this thread.