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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Ok, Andrew, this is allergy something. I would highly advise you in future before you post any discrete updates, questions, and ideas about what you to inform about the holistic objective of your project, sort of a view from 50.000 feet. That what I ...
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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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[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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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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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="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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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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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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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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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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[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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[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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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="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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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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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="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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Paul, Points well taken. The F120A is listed as a FR driver. In my humble view, it does quite well for it's size, albeit the last two octaves will not be in full force (okay, the last octave is mostly MIA). It's lower sensitivity does not ...
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[quote user="Kerry Brown"] A digital crossover with lower bit depth and sampling rate than the recordings it's processing won't deliver maximum sound quality; unfortunately my DEQX crossover is limited to 24/96 so it can't process hi-res digital ...
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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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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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[quote user="anthony"]My RAAL Lazy Ribbon has ended up needing a 1st order high pass filter to match the midrange S2 which is so much more convenient than third or fourth order as initially intended.[/quote]
In my case I found that RAAL ribbon wit...
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Was invited over to Romy's today for a listen. In the last two days, he made several small but critical changes in the time alignment, crossovers, and room damping, and the sum of them has brought his system up by several notches producing the best a...
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