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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hi Roman et al!Allow me to introduce myself. I have followed with amusement Romy the Cat for many years. He is ascerbic and ultracritical, but he does know audio. We share many tastes, like the Koetsu Onyx Platinum foir instance, on...
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[quote user="stuck.wilson"] having seen the benefits of first orders in my own application tonally AND dynamically[/quote]
It's never was my experience. A never seen any tonal distinction between first and second order and I don't think that I exper...
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Today I had a promising experience. Bill is keep experimenting with his Dannoys and I was visiting him to see what's going on there, since I am still waiting for my panels and I can experience the Dannoy foreplay only valceruasly. We did a very usefu...
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How lucky was I that I bough that digital crossover! I am think now how can I search for my crossover slope and find that this digital toy would make it very so much easy. My major concern is to make sure that some frequency anomalies that I have fo...
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How lucky I am! The Melquiades bass channel at full throttle gives me just enough gain to power my Midbass horn to the reference level of my MF channels. That is truly a very lucky thing. The biggest dilemma I am thinking now is type of the filt...
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I had in my basement Marchand X26 crossover that I use over 10 years back. Since my B-2 power amp with passive filter is being fixed I setup the stock fixed B-2 with external Marchand active crossover. I spent some time to modify the Marchand X26 bi...
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Hi
I read about your very fine hornsystem on Romy´s homepage. I started now a own Hornproject and I see your crossover from “Hornfabrik”. You have so right that a good crossover is also a key for a very good hornsystem. I´m so interested on the valu...
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Romy, Radian 475be performs best over 2K. It has some distortion around 1700 Hz. I think in general that 1 inch drivers should not be used lower than 2K.I understand your point that the practical implementation is more important than a "best practice...
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[quote user="noviygera"] I want to listen to both 12db/octave and 6db/octave passive versions and see which one sounds better. And keep the one that sounds better. [/quote]Herman,
It depends what you would like to listen. If you would like to ...
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[quote user="Romy the Cat"] Make an experiment, and I will simplify the case quite assertively. Take a typical compression driver, cross it at 800Hz, second order and load it into a proper contemporary horn (Tratrix or JMLC) of 300Hz. Listen that hor...
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Hi Romy and all,
first of all, my name is Henry, with a "Y". due to an Irish grand-grand-grand father called "O'Henry". the O' was deleted when my grand-grand father was born, due to a silly servant of registry office. :-) all my horns uses the calc...
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Romy,That upper rolloff in the OPT comes from a number of distributed capacitances and leakage inductances in the transformer - it will not be a simple filter. Lots of transformers have weird resonances up at the top of their range. In fact, some mak...
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Dominic,
I have no idea. I never used them and hardly used anything similar. Generally there is no abstract intellectual value in the targeting any specific crossover point. People out there suggest “do not cross here” or “do not cross there” but it...
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Ok that was a long road to "stick with vertical alignment, and stay away from BMS." Back to compression drivers, and implementation...
If I were in your shoe I would take make as you wish but wish a slight correction:
65Hz Tractrix fro...
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[quote user="Kcct82"]On to other things... now that we've been using the GOTO SG505 for a while, the verdict is that it does not sound good below 290hz. [/quote]
As I understand you use the GOTO SG505 in 150Hz horn and report that it does not sound ...
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the croosover point of LF and HF looks located at about 6 KH where the wave length is a little more than 2". Then the impeded opening of the LF driver should be less of a problem theoretically....
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[quote user="Markus"]Very interesting discussion. I have taken a close look at Marco's horns and am thinking about using them in a horn installation. I plan to use the TAD 4003 from, say, 1 to 8 kHz, and a tweeter above that.
I would love to use ho...
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Hi Skushino,1) In your post above regarding certain(?) of Bruce's products, can you please identify *what* crossover parts you received or heard (in context of given system) which you feel are "low quality" ..?2) Which model & ...
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Hi Romy, Many thanks for replying. I do not want to modify the two drivers. I agree with about all the BS from people selling speakers with TAD drivers. What I want to do is replace the crossover with one of higher grade parts and thereby also elimin...
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The current suggestion from GOTO is to crossover at 200Hz with S150 horn. Of course, you can crossover higher but what are you going to use to cover 220Hz down? If you choose to use the bass horn, you do want to keep it crossover low.&nbs...
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GOTO always recommend to use 1st order active crossover and 2nd order passive crossover. The reason to use 2nd order for passive crossover is to protect the driver. Of course, the user can use whatever they like the best but the recommendation ...
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I have a pair of the english crossovers with russian caps i dopn't need willing tgo sell for half price if you are in the US and waNT THEM. They hAVE A CLEANER SDOUND THAN MY TWO SETS OF ORIGINAL CROSSOVERS but not as roman tic.am using my trinnov al...
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[quote user="Romy the Cat"]
Murat, I absolutely do not relate to your reason. In fact I think this is very artificially contrived rezoning. The true reason is that you like 555 driver that happens to go to 5K and you would like to sell to...
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While I am waiting for the attenuators I worked on the frame and changed it to a metal frame.It is sturdy and height of the channels can be adjusted in both axis.Romy, may I learn what your crossover points for your channels?My midrange channel is be...
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Yes, I do believe your exact crossover points would be irrelevant as well. I just wanted to know the span of your horns and drivers. I especially wondered about your fundamentals channel. You said it was narrow but what is narrow for you. Mine covers...
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That is a fancy one, with vacuum caps as I can see it. I do
not know about the practicality of vacuum caps – they have own pluses and minuses.
Still, that is nice crossover, a bit more complicated then I initially thought I
has to be. It would be ...
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[quote user="anthony"]Romy, I
appreciate that this is an old thread now and that you may not remember
everything from your time developing these amplifiers, but I have a (hopefully)
simple question about the upperbass crossover in the schematic ab...
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[quote user="i_should_coco"]I view of the fact I have two pairs of S2 drivers, I'm intrigued by the thought of running them a la Romy, i.e. high and low. So, in addition to procuring a pair of Big Mama horns, I'm discussing with Martin the prospect o...
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[quote user="stuck.wilson"]In this thread, you previously said--
12) If a filter requires a phase inversion then it is preferable to flood crossover point with amplitude and do not invert phase.
What exactly do you mean by this and how's it work?[/...
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[quote user="slowmotion"]Romy, there are more ways to the top of the mountain... <BR>And we already know that your way isn't my way... <BR><BR>You bring up many very valid points, but still I will continue to use my digital crossove...
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