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Process of Making High End Stereo Speaker. Wonderful Sound Engineer of Korea
- Thread starter kongwee
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Typical "high end", expensive materials and processing but doubtful engineering like for example a waveguide which with this shape most probably won't measure well. Also the rubber surround of the woofer seems to be not cut cleanly, not really matching the high material quality of the rest.
Looks like Markaudio CHR-120 woofers, just a bit cut up and a Dayton Air Motion Transformer with some funny stuff at the back. That's about € 140 worth of drivers, sold for about € 2000 a pair.
The cabinet must cost a little fortune and the assembly process is everything but optimized (to be polite).
$ 2k sales price doesn't seem excessive for the cost of manufacturing. Is it worth 2k fir the consumer is another story.
$ 2k sales price doesn't seem excessive for the cost of manufacturing. Is it worth 2k fir the consumer is another story.
BrokenEnglishGuy
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The front is aluminum thats hiend
Going by the socket head screws and how it looks, the cabinet seems to be aluminum extrusion.
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The whole cabinet is aluminum just like 8361 .
Why compare to the 8361? For the same money as these boxes you can also get a pair of 8040B. Also full aluminum, and also include amps and an active crossover.
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And sensible engineering.
For the material input, the price is for so called "high-end" still reasonable - IMO.
I find the use of the almost forgotten compound principle (isobaric) interesting. By using two drivers in push-pull or push-push arrangement, a lower resonant frequency can be achieved with the same cabinet volume, since the moving mass is (approximately) doubled.
Source: Schwamkrug - Lautsprecher - Dichtung und Wahrheit
With push-pull arrangement (only there) of two identical woofer second order harmonic distortion of driver suspension is suppressed (as long as both driver play together the same frequency range). Third order HD is not suppressed.
The crossover frequency to the AMT tweeter is extremely high at 6.8kHz. It may be that due to the high crossover frequency the steep and simple waveguide is still sufficient for a uniform radiation.
The vertically asymmetrical placement of the AMT could be a problem. Whether the tweeter radiation matches the woofer depends on its break-up behavior.
Due to the mounting of the woofer on the rear of the baffle and the high crossover frequency, interference is likely to occur due to edge diffraction at the baffle cutout.
I find the use of the almost forgotten compound principle (isobaric) interesting. By using two drivers in push-pull or push-push arrangement, a lower resonant frequency can be achieved with the same cabinet volume, since the moving mass is (approximately) doubled.
Source: Schwamkrug - Lautsprecher - Dichtung und Wahrheit
With push-pull arrangement (only there) of two identical woofer second order harmonic distortion of driver suspension is suppressed (as long as both driver play together the same frequency range). Third order HD is not suppressed.
The crossover frequency to the AMT tweeter is extremely high at 6.8kHz. It may be that due to the high crossover frequency the steep and simple waveguide is still sufficient for a uniform radiation.
The vertically asymmetrical placement of the AMT could be a problem. Whether the tweeter radiation matches the woofer depends on its break-up behavior.
Due to the mounting of the woofer on the rear of the baffle and the high crossover frequency, interference is likely to occur due to edge diffraction at the baffle cutout.
It's a solution to a problem that should not exist. If your box is too small for your driver, get another driver, not a second one
The extra extension is most certainly lost because you started out with a box that is too small in the first place.And support, repair and resale value.
Some people will like the look (and maybe the sound) of these speakers. And that might be what it is meant for, a pretty niche market
Well, things are not that simple.It's a solution to a problem that should not exist. If your box is too small for your driver, get another driver, not a second one
If you don't develop your own drivers or have them produced, it will be difficult to find a driver that meets the requirements for the discussed speaker (SuperMon mini).
A driver that has a low resonant frequency in a small volume needs a high membrane mass, maybe you can find a 4'' subwoofer driver that fulfills this.
With this concept, however, one needs a wide-band driver with subwoofer characteristics because of the high crossover frequency.
The SuperMon mini speaker uses an "expensive" full-range driver with a probably cheaper woofer, which ensures that there is no bass hump despite the small cabinet volume (if done correctly). A new virtual driver is created in the low bass range, and the full-range driver will probably play alone from the midrange onwards.
It is, if you don’t make other stupid design choices
Yeah, the design is just broken. There will be a lot of lobing from the tweeter/woofer interaction. Wavelength at crossover is only 5 cm, and the center to center distance is way more than that. A normal 2-way would yield far more options with regards to the woofer.
But obviously then it would not be something “special”. It would be much harder to sell. Now the marketing department will have a field day coming up with reasons why this new approach is better…
The overall concept of the speaker is certainly very "special" and I have already listed a few possible problems.
But our hobby would be boring if everyone would stick to established concepts, then there would be nothing left to complain about
BrokenEnglishGuy
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I dont aggre...The overall concept of the speaker is certainly very "special" and I have already listed a few possible problems.
But our hobby would be boring if everyone would stick to established concepts, then there would be nothing left to complain about
The best escenario is plenty of good edtablished concepts and cheap prices. I Dont know why it would be "fun".
