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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I gave another run to Vitavox S2 with electromagnet and while I was listening I come across to an interesting observation. I screw the S3 in 330Hz horn and was trying to run it with 500Hz crossover point. It is pretty standard configuration, the way ...
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There's no plasma tweeter on the Cessaro. The tweeter is the TAD ET-703. The HK owner has a gold-coloured horn for the tweeter, but there's no plasma driver. I'm pretty sure the horn on the Lansche plasma tweeter is a good bit larger than the horn on...
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Hard to comment on this one... Seems like most everyone I talked to there hears with their eyes, and thought they were beautiful sculpture, therefore sounded wonderful... Maybe I should just be honest and say I flat didn't like the s...
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Use a ladder tye end of string put other end threw the horn you use for 1000Hz take off driver, measure front of driver to poll piece, that is were the diaphragm mounts to. add that to your measurement and that is were you put the tape. Then with the...
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Thank, Manolis, it did address some concerns. I think I even know what you did with the MF driver. You were able to get 50Hz out of this looks like horn? This is impressive. The boundaries-loaded horns sometimes allow doing away with the horn siz...
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Skushino, Thanks for pointing it out. Unfortunately with all my desire to understand what CH Audio did turn to fiasco and I absolutely do not understand this LF section. Is it a duplex of 515 drivers with one loaded in this front shallow front horn a...
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Well, I was thinking that there might be something of a "shock wave" created if they run too low, and the pillows might soften that up, almost as though one were trying to get the horn to behave more like a direct radiator at LF, where there is not e...
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Audio Federation have publish some images from the Silbatone room at CES, even it is in their new idiotic format of the “magazine” but they still visible.
http://spintricity.com/445/public/Vol1-3/page182
What attracted me in the images is to see wh...
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[quote user="Dominic"]be careful here as mouth size is defined not by what you input, so much as the acoustic space and performance you want. The throat size can be fiddled with if you're careful but there's not much one can do to shrink the mouth. O...
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I did a lot of those experiments a few years back, stuffing the back chamber of S2 driver with all imaginable things. During that time I did not use a dedicated lower MF channels and was concerned only about the S2 top end. I did not detect any diffe...
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Romy wrote:"...a chassis designer told me. It is now possible to buy normal efficiency drivers with low mechanical loss..."Sure it might exist, but I question the application.First, a bit of the obvious:Consider only the driver; not the amps and rela...
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Thanks for your comments, Romy.Edgarhorns weren't an obvious choice. Many horns never worked for me. The Avantgardes left me cold. So did the single-driver crowd (I just don't get it....), Altec VOTs, PA systems, etc. But there were some systems ...
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A friend stopped by tonight when I was test-listening my midbass horn. He got freaked out from the size of the thing. I played for him some Gerhard Oppelt’s organ recordings. He told me that I am crazy, like I do not know it myself. Anyhow, he made a...
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I spent some time with my back chamber, trying to drive the driver resonance heighted. I built a sealed sarcophagus as a back chamber (if somebody are interested I can post a picture) approximately 1.5 gallons but it moved Fs for 700Hz. Then I began...
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[quote user="Jorge"]Andrew you got to read the site, get into it, there is a lot of useful information regarding excactly the project you are going into, is there any difference if the threads are addressed to you or someone else? Most of them are R...
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Pretend
a driver diaphragm, any driver. From front diaphragm "sees" the horn
throat and the mass of air in the horn that diaphragm needs to
"push". This creates let call front spring. If a driver has a front
chamber than let discard it for now. ...
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[quote user="HookEm"]The reproduction does not seem natural... too far away from what I would hear at a live event (e.g., female vocalist). Sort of bright and fatiguing at times. I may not be using the proper terminology to describe it, but I do...
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I recently completed some upper bass horns which I'm now enjoying very much. Sadly I lack the skills of someone like Jessie so my efforts are crude in comparison, but they are working well for me which is the main thing.I already had some old frontlo...
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Romy wrote:"... from the perspective of “reading the back side of the midbass speed bump” I would argue that it has nothing to do with horn loading. Look at the notion widely. I would propose the following...""...An abstract ultimate playback system ...
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jd, I cannot see any of PDF files, probably my current networks kills them.
I do not know the AK150 drivers. I know AK157, AK151 and K15/40. If they have significantly lower free-air resonance, at 30-35Hz then I am not sure that they would be ...
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[quote user="Romy the Cat"] Andy Simpson wrote:
You raise an interesting point regarding ribbons but are missing the bigger picture.
With Romy's permission, I would like to invite you (and any other members) to listen to some recordings on my...
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[quote user="drdna"]I appreciate the suggestions on the ceiling of the room; in my room the ceiling is about twelve feet tall and it opens on the side to another room with a taller skylight, so I do not know if this is a problem or not. It may ...
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[quote user="Romy the Cat"]The biggest problem that usually people face when they listen the middbas horn is that people tend to make the middbas horns too short. In the short horn the driver shot right through the horn and the LF go not “get loaded”...
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[quote user="JLH"] Other than being completely ridiculous in appearance, this guy didn’t even bother to time align any of the drivers. [/quote]
This exactly what is the most fun in that system! Sometime people do not do the time alignment because it...
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[quote user="Thorsten"] First, the Lowther has ze wizzer cut off and has an Equalisation circuit to flatten ze upper midrange bump. Otherwise it is run fullrange, that is WITHOUT HIGHPASS OR LOWPASS. [/quote]
Probably this is why the Lowther sounded...
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Quotes from Romy in blue: "...Anyhow, I do not know at which stage your project is what I think you are somewhere in a process of integrating the drivers..."I would like to stabilize the system, and listen to the existing horns, while ...
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Oops,
I'll send the images again once back at work on Monday.
The thraot size will be 7 inches.
Yes I have thought about paying someone else to do the work, but that sort of skilled labor is super expensive around here.
And... Yesterday ...
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[quote user="Dresden"]I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.
As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to ...
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[quote user="ayebee"] The horns that Stereo Lab make are very good, especially considering the relatively modest prices. I bought the "Ultra-Fi" version of the 140Hz horns and they are of course not completely free of resonance ….Present system consi...
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[quote user="jessie.dazzle"] If you've tried both, and decided to keep the 16R versions, you've answered a question I've had for quite a while; I too use the 16R version, but have always wanted to try a pair of 8Ms with 8 Ohm coils (should have o...
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