Recent content by Bjorn
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Why Synergy horns?
A cumulative spectrum or waterfall is simply showing how the frequencies decay over time addional to the frequency response. And yes, that's valid for all rooms of for speaker measurements. But looking at the waterfall for midrange and treble in a room is generally not very helpful. The...- Bjorn
- Post #314
- Forum: Speaker Design
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Why Synergy horns?
Should we stick to physics and proof or what an individual thinks? Ethan Winer isn't an acoustician FIY. You might want to read the thread you linked to. Ethan Winer is being corrected by more knowledgeable people in the field.- Bjorn
- Post #307
- Forum: Speaker Design
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Why Synergy horns?
Critical distance. Critical Distance is the distance from the sound source where the direct and reverberant sound energies become equal. That's not possible in a small room. If someone treats a small according to reverberation time (RTx), they will end up with a very poor result and the...- Bjorn
- Post #304
- Forum: Speaker Design
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Why Synergy horns?
Waterfall and reverberation time have nothing to do with each other. RT60 is the measurement of the decay time of a well mixed reverberant sound field well beyond Dc, a real critical distance. RT60 is the time in seconds for the reverberant sound field to decay 60 dB after the sound source is...- Bjorn
- Post #299
- Forum: Speaker Design
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Why Synergy horns?
Is there a diffuse sound field in a small room? No, and that's the requirement for a RT60 to exist.- Bjorn
- Post #296
- Forum: Speaker Design
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Why Synergy horns?
Wood slats don't offer proper diffusion and will cause specular energy. If you room is sufficient wide, you could use the RPG Modffractal for the side walls reflections farthers away from each speaker and possibly at other later arrival reflections. These are the best diffusers in the market IMO...- Bjorn
- Post #294
- Forum: Speaker Design
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Introducing Vera Audio power amplifiers
The P150/600 RS should be back in stock within a few weeks. I will present the speaker below in a separate thread when the time is right, but just giving a teaser here. Picture here is shown without feet FIY. The name of the speaker is Coherence 12. It's an active speaker design with planar...- Bjorn
- Post #13
- Forum: Power Amplifiers and Preamplifiers Forum
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What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???
It means that part of the depth that we perceive can be an illusion of our mind. But it doesn't mean all is that. A speaker with very wide dispersion in the highs will also typically add more depth to the sound. A dipole might also because of its dispersion pattern. So it's all an illusion, it's... -
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What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???
I didn't say that. To sum up: There are not detrimental effect with a horn with the right dispersion pattern placed in a corner other than the visual depth loss. But almost no one has heard such horn speakers either. It requires a very large horn with a very uniform directivity. There's a... -
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What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???
First of all, it will depend on the directivity of the speaker. If it's sufficiently narrow and broadband uniform there are no audible reflections from nearby boundaries. Typical commerical horns don't meet these requirements though. However, even with a large horn with the right dispersion... -
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What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???
If the horn is large enough combined with narrow directivity, it can be placed up against a front wall or in a corner without a detrimental effect. But we're talking much larger horn then. -
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Introducing Vera Audio power amplifiers
That would be the case if they were not built to last. Without mentioning names, many class D amps being sold today have very poor cooling, and we're already seen some of these fail after only a few years. They basically cooked. Vera Audio's philosophy is however, to built products that will...- Bjorn
- Post #11
- Forum: Power Amplifiers and Preamplifiers Forum
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Introducing Vera Audio power amplifiers
It should be back in stock within some weeks. No update.- Bjorn
- Post #10
- Forum: Power Amplifiers and Preamplifiers Forum
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Introducing Vera Audio power amplifiers
Power and cooling in class D amplifiers Let's look at power and cooling requirements in class D amplifiers since there is a widespread attitude that this is not a problem. Chapter Audio was one of those who underestimated this and sold expensive amplifiers that failed after a relatively short...- Bjorn
- Post #9
- Forum: Power Amplifiers and Preamplifiers Forum
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Introducing Vera Audio power amplifiers
There are no reasons to believe parts will not be available for a long unforseen future. In absolutely worst case scenario, we would have to use a newer model of an amplifier module or a PSU. Also want to add that our class D amplifiers are built to last with high building quality and very...- Bjorn
- Post #7
- Forum: Power Amplifiers and Preamplifiers Forum
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