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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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1) Horn loaded drivers are narrow-bandwidth transducing system. The wider range a horn channel covers the more it conflicts with restrictions of own topology.
2) All channels shell have strictly parallel axis
3) All channels shell be time-a...
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[quote user="mats"]I have found the T90A to be reasonably in-offensive with JBL 2435 Neo/Be compression drivers. I use them with relatively small caps, currently 0,3uF. The effect is a welcoming of a higher frequency palette that to my ears does not ...
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Dear Romy, thank you for your opinion. Did you see and hear them if you are talkig about the quality? In Munchen High End Exhibition 2016 Evolution speakers celebrates big success in demo with KRaudio Kronzilla amp.http://positive-feedback.com/show-r...
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I have the original Dannoy's. While i still have not gotten the sdound that Romy did in his room, it is still very good. Using biamped Yamaha B2 amplifiers driven by a Trinnov 16 pre-pro, recently updated by sdoftware to 20 channels. The speakers are...
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[quote user="scooter"] However, I had one very interesting observation living the "Class D;" plugged directly into the wall socket, they always sounded the same, regardless of day or time of day. That is the only audio gear I have ever encountered th...
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hm..lots of interesting information to chew on, and by and large, i've had similar experiences with first order crossovers on bass drivers .. this being my experience with a full range amp, and a two way system-- which is a far different critter than...
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[quote user="zanon"]Romy:I was not aware that manufacturers of multidriver system let you attenuate individual drivers. I guess if you multi-amp, then you have control at that level. I have never encountered such a system so I cannot say, but if it i...
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[quote user="Romy the Cat"]And it is not that you can do it but it is a very common practice. Some manufacturers offer actuators of sometime tapping pads. I think even the largest Wilsons offer a set of series resistors for crossovers to attenuate HF...
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Romy, it is of course "yes and no" situation. I thought it will be understood by presumption and it doesn’t need to be mentioned at all (but since it is Audio for Dummies section – it seems it needs to be mentioned :-) ). So - Yes - if it is done rig...
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It's my system that Romy discussed above. I've been fighting electricity problems for 25 years using everything from home generators to multiple 3 KV isolation transformers in series with banks of caps, to multi mega-buck high end audio products to l...
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This is sort of a "preliminary" post, to air some of the thoughts that will lead to my next disaster, which I will tell about once I begin to get some actual results. My thinking is still about the same as it was when I made the 11-01-09 post; but so...
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TH,Avoiding mistakes is something that we would like to do. It saves time and money BUT unfortunately the science of building loudspeakers is based on specs, not „Tone“ or „Sound“. Being an engineer can help make beautiful drawings but we all learn t...
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Romy,I am in agreement with your observations. I am not certain I will end up using specific crossover slope, like 6db or whatever. It's what I prefer in my current setup. I will try to have make a design that will work with this type of crossover --...
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[quote user="serenechaos"]Having just returned from this show, I have a few comments on your comments...
1) Yes, it was the amp you posted the link to. 2) Yes, the tweeter and two MF channel drivers were GOTO 3) Your estimates on flare rates ...
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[quote user="skushino"]Romy, please elaborate on your experience using a 2nd order crossover. What do you mean "rules of the game change completely?" Why did you try the 2nd order? Are you concerned with damage to the driv...
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I still thinking about this ides of ultra sharp digital filtrations and for whatever reasons it fascinates me. It is not the I am consider to do anything with it – it is absolutely not needed for me – still I might like the idea as a topological solu...
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then the idea of amp bypassing is relevant to the "clean signal" discussion. But regardless of the measured voltage out vs. driver sensitivity I suspect that there is too little of something in the way of drive and control between a&n...
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VERY interesting observation, Romy.I fought with but was unable to overcome both dynamic "tromboning" and also a closely-related sort of "shaping" effect, and now I wonder if this relates to the "proximity effect".I did limited experiments ...
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[quote user="skushino"]"The top response of the upperbass channel is challenged. I do not know why it is – a wrong driver, a wrong curve in J-horn or wrong made filter… " That sweep mirrors what I hear - specifically tepid and weak upper bass in the ...
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[quote user="Romy the Cat"]tuga wrote:Our milage varies and in my case it's still quite short.In any case, I would place glare on top of my list of appalling qualities of modern high-end loudspeakers.This glare (unlike clarity) results from an ex...
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[quote user="Romy the Cat"] 1) Horn loaded drivers are narrow-bandwidth transducing system. The wider range a horn channel covers the more it conflicts with restrictions of own topology.
2) All channels shell have strictly parallel axis
3) ...
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From Alex's thoughts it seems like one approach might be related to/interfaced with the program itself, such as RIAA or FFRR, etc., etc., even though I think those "recommended guidelines" have been only loosely observed by recording e...
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[quote user="Bill"] I have set up a 16 channel system with 7 floor Edgar horns, six inexpensive height, and one overhead speaker (all under $150 each) and one subwoofer channel, all controlled by a Trinnov Altitude 16 pre-pro, which is a computer...
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As late as the 1960s every self-respecting hi-fi nut had a "secret recipe" for "speaker dope". My own guru would not give me his exact recipe for speaker dope but insisted that developing the stuff was a rite of passage I had to go th...
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The 10" "woofer" is well known to "high-end" designers, who love the "fast" bass, and I have to admit that Wilson and Dunlavy (among others) have also managed to get some impressive (at least for a while...) "dynamics" from the little woofers. To lo...
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Higher sensitivity of loudspeaker leads to higher dynamic range but most of audio people mistakably feel that it should lead to ability of loudspeaker to play loud. Tom Brennan, from the AA sewers, mentioning the advantaged of Klipsch La Scala stated...
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[quote user="JLH"]Foolishness is too soft a word to describe the unspeakable garbage the Magico Ultimate is. They have mis-matched impedance drivers, improperly sized horns for the drivers, and made everything from metal. Then they go on an attempt t...
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[quote user="jessie.dazzle"]Even if you don't agree with the design, there's some clever DIY going on here.[/quote] Sorry, I did not now see any “clever DIY going on” in there. For sure he is a skilful, perhaps wonderful machinist and perhaps good ca...
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This is our first offering; we are indeed working on another two higher priced models. One will have an additional channel on top, the other one will be front horn loaded down to 40 hz. Optional finish and colors, both for horns and supports, a...
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Thanks, Roman... I strangely (?!?) feel me like a schoolboy at his first primary schoolday... virtually ALL my (limited) audio knowledge, vanished... and I'm dealing with brand-new problems, like a crossover with fixed slopes and cut-off frequencies ...
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