I have. Done them many times and read all of the good objective tests out there, but am happy to be shown any well done objective tests on poly caps that show audibly significant distortion. Got links?
If you kill troels work without know how work/misure a stupid caps well...you don't need that info
I actuallly helped build some of his designs (SBA10 and SBA741) for people and altough i agree on the way too expensive parts in the crossover, his designs are very good. And i'm rather sure he measures off axis (but don't post that info) as his speakers that i heared have a good off axis response.
If i would build one of his designs, i would probally just take the box design and driver choice and redo the crossover on own measurements with cheaper, but as good components. You could do it also active (but i don't like dsp sound). The plans are all online so it's not to dificult to do that if you know how to measure speakers and can design crossovers. I think he makes them too complex also, you could do the same with much less components. But it's his bussiness to sell components (or at least he got a comission on the sales) so...
If i would build one of his designs, i would probally just take the box design and driver choice and redo the crossover on own measurements with cheaper, but as good components. You could do it also active (but i don't like dsp sound). The plans are all online so it's not to dificult to do that if you know how to measure speakers and can design crossovers. I think he makes them too complex also, you could do the same with much less components. But it's his bussiness to sell components (or at least he got a comission on the sales) so...
In other words, you can't provide it. If it's there and you know where it is, why not back up your claims with actual data?
Your claim, YOU back it up. That's the way life works.
that note only your ignorance about caps ...ps resistor too
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Link to the full article please as I want to see the test conditions. As for resistors, you've provided zero data there.
cabinet designs surely, but the crossover would be mine. But i rather do full own designs on speakers than use someone elses. I only did (help) build those for others on thier demand, just like i did with some kits.
you can use his Xo to start ,I have tested one on my old build and I like a lot .....
???
That it is a different speaker is absolutely irrelevant. In this Proac the back wave is trapped, almost totally canceled and reverberating in that small space between the magnet and the housing without chamfering.
The loss of bass is absolutely notorious. What is cushioning material for if there is nothing to deal with? Obviously you have responded without even reading the article I attached.
Moving on, I built Troels's DQTWII.
I could not be more satisfied, for the money invested, I would not have achieved a sound of that quality in a commercial brand.
The time invested? I am very skilled in carpentry and electronics, it was pure fun and entertainment.
The resale value? Many of those who have listened to them in my house will gladly pay a realistic figure to keep them if I decide to sell them!
The off-axis measurements? And what trademarks provide that data?
Also, my build responded very well off-axis listening in the adjoining open environment, it's exactly like stepping away from the stage and standing to the side. What do they want? that it sounds exactly the same as if we were heard in the "sweet" spot? That's what the Line Array are for! Forget it, they are illusions, neither DSP nor REW nor any electronic means (complex to operate from the start, not for beginners) will do the miracle. Do not dream it or waste your time! You do not believe me? Look, this Christmas I went back to doing what I usually do, taking my little "auxiliary" system - but which is not Wall Mart quality - outdoors, no physical limits around, then I connected my smartphone / Tidal and gave everyone freedom to choose the topic that you like the most.
Several told me: I have never heard my favorite song like this! It sounds wonderful! And yes, reverbs are bad for good sound. And in small environments, it is as if Covid 19 is there. Very dangerous for health and very dangerous for SQ ....
So you want to hear "clean"? Open the windows and get ready for a good discussion with your neighbor!
Have a very good New Year everyone !
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the youtube boyz is wrong not you , Seas excel is not irrelevant now you are wrong ..btw???
That it is a different speaker is absolutely irrelevant.
Have a very good New Year everyone !
chamfering is needed and well know ...
relax
Most of Troels designs do not pay any attention to diffraction other than spreading it through off centre placement, the stepped baffles get lost in the rest.
He did perform a study of that
http://www.troelsgravesen.dk/stepped-baffle.htm
Me too but that isn't an option with Troels. My point was with smooth drivers the size and position of those in the Disco 3W MkII it would be quite hard to get a bad off axis response using Troels usual methods.
About the stepped baffle study, it is flawed because it contains (again) only on-axis FR. Going off-axis vertically can be a real mess.
Ralf
What do you mean with bad off axis response? Without knowing the crossover point I don't even have an idea of the directivity. With his usual too high point of crossover between mid and tweeter, there could easily be a hole in the power response, and you won't know it until built. See here what I mean for data: https://heissmann-acoustics.de/en/dxt-mon-rly/
Ralf
It looks cute, I always liked the little two-way cabinets for the boys' room.
Will they be concerned about diffraction or the crossover point? I think not. And I think OP is going for something better.
My advice to him is this: Small cabinets, small sound, big cabinets, big sound!
Pick as big a three-way as you can afford.
Will they be concerned about diffraction or the crossover point? I think not. And I think OP is going for something better.
My advice to him is this: Small cabinets, small sound, big cabinets, big sound!
Pick as big a three-way as you can afford.
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