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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="angeloitacare"]romyif a "wrong" approach does make a consumer happy, so (...) be it !![/quote]I wouldn't expect anyone to argue against consumer happiness even with a "flawed" system. However, I'd say that this consumer happine...
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I am not a DIYer and have no skills nor knowledge to build the Melquiades, so I contacted a technician here to have one built. He said he could make it and stated the cost at around 3000USD including his working time. He suggested some changes in the...
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[quote user="Paul S"]HE, from what you've said so far, much of what puzzles and interests you now has been thoroughly discussed here for years, and IMO you owe it to yourself to read extensively at this site. As you begin to "get the idea" you will ...
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Thanks paul for well thought reply. Two things need clarifiication, i am not new to the subject and am a constant and avid reader.Secondly my preference for music is hobby for electronics and pleasure of listening through application of mind and know...
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[quote user="Paul S"]For the Reps I will use a 2,200 Hz notch filter for its peak[/quote]Paul, why don’t you try to fix the problem of the Reps driver instead of notching it? There is a reason for the peak and I do not consider the problem could be s...
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[quote user="Romy the Cat"]Output transformer. Here is
what the thing become complicated. Of you drive ultra-low impedance with step
down transformer then your secondary turns will decrease. They primary will
have whatever they have for all case b...
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After planning out the exit strategy for my DSP crossover, I am resuming my first Single Ended Pentode 307a tube amp project, the one mentioned earlier. I'd like to approach this with a certain degree of understanding so I have re-read carefully all ...
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Likely, the wider ribbons are less good for HF-only than a long, narrow ribbon, like the G3 and G3Si use. Across the board, the larger the ribbon gets (and the lower the ribbon is made to go), the worse the dynamics at a&nbs...
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[quote user="N-set"]just a minor tech remark (feel free to ignore): the big-ass elco is theoretically still well in the picture. 10uF will have 320Ohm@500Hz, which is a fraction of 20Ohm R+3mF elco.[/quote]Jk, actually it is not exactly accurate.
As...
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[quote user="cv"]Little suggestion should all else fail - you could have a rudimentary phase plug machined that would give you the same (or similar) compression ratio as the original but only one annular exit path. This might preserve the driver char...
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Thanks for your quick reply. I have been to assistance audio`s website, however was unable to find such model, but is possible they just disassembled the tweeter or whatever.This is really interesting news, about their violin reproduction, me too wou...
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hi RomyI agree with the technical design issues. Though i experienced that for most modest domestic dynamics first order xover can work surprisingly acceptable.Also agree with bad impression of exhibition experiences are steered by many factors and s...
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One basic requirement of "Pro" speakers is that they play LOUD, preferably day after day (night after night), without blowing up. Most pro gear is designed with volume (power handling) and durability as the first considerations, and the "sound man" ...
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Ah yes, sorry - that wasn't remotely clear. The drivers I have played with briefly are S2 and field coil RCAs, both have the same 1.5" throat. I was referring to my initial impressions of the sound on Martin Seddon's 160Hz horn (T=0.8 JMLC). Previous...
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[quote user="Serge"]Romy consider that the engineers who did your Altecs in their worst nightmare could not imagine their lovely cinema speakers would be used with solid state amplifier which badly distorts on LOW power levels. It has 100 crappy watt...
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I juts was pointed out today that PS audio has some interesting ideas out. The transport: http://www.psaudio.com/ps/products/description/perfectwave-transport?cat=audio“…. can read WAV files directly off a DVD … “That is good, can it read the .AIFF, ...
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[quote user="rowuk"]Hi Amir,your english is just fine.I think that there is an additional factor that your formula needs. Sense of pitch is not determined acoustically by "Q" unless we are talking about pure sine waves. When we add the overtones foun...
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I think most of reader get my point of the car examples. The main point is to follow the manufacture recommendation on how to use the driver. Of course, if you want to do something different, that is your choice but don't come back and blame the dr...
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So, with this horn I got the sound I was dreaming for!Currently system consists of 4 channels:1. RAAL Lazy Ribbon (14k+)2. JBL 2453 in 550Hz LeCleach (1200 - 14k)3. JBL 2490 in first part of own JBL horn (300-1200)4. 12" Supravox in 42Hz 2m long horn...
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I have been quietly listening and working on my new system. The upperbass horn can be crossed lower than I anticipated, which is great news for me. I was going to have the crossover point of 160hz, but I can easily do 120hz :) The dual tad's will be ...
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This is very interesting subject.
I expect that tghe new Midbass horns will have somewhere 108dB sensitively anechoicly. The driver is 99dB and the hyperbolic curve has much more EQ then Tractrix and that is more important the EQ that work mu...
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Thanks very much Romy and Dan for the input.
With the exception of a structure to locate the horns, I have all the tools necessary to make the measurements.
Though this is all happening in France where DSPs and TADS rule* (see note at end), all...
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Paul McGowan, the head of PS Audio send his newsletter with his comments about SACD. The comments are childish and in many way absolutely ignorant. I hate what the industry professionals twist the facts and go into pure falsification in order to ...
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To my big surprise the Pacific tuned out to be an absolutely wonderful 16-bit DAC - the only one that migh compete with by Bidat. It does not go into max weigh of lowest end as some other best converters do but it has such an interesting and reach “e...
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Yes of course, rule going to be very much in play and certainly it will be impacted by specific response right and left channels to a given location. Even though the location is hugely variable and the speakers might be moved with the freedom of 6-7 ...
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[quote user="Romy the Cat"]Brian, and how do you find your MOSFET behaves compare the 12AX7-based cathode follower?[/quote]Romy, I have yet to try. Only got them on recommendation very recently. They're cheap enough to try in a B9A plug-in without al...
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While my R&E deal on hold (had to close tomorrow but proponed) I n order to keep some sanity I was playing with idea of listening room arrangement. As I told the room has a number of very cool properties that I fall in love to from start. One...
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Roman,[quote user="Romy the Cat"]Last year the speaker was presented by “Horning Hybrid Perikles” importer who told me that they demonstrated: “3-ways loaded into the same horn loudspeaker”. I asked him to explain what dose it mean “3-ways loaded int...
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Let me list for you what I think drives sound quality to me:1. In room flat response at the listening positions2. equal decay at al lfrequencies off axis3. Adequate delay between direct & first order reflections. 4. Lack of distortion, or suitabl...
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[quote user="tuga"] Romy,On the subject of speaker design, I don't think you'll disagree if I say that your "quest for a better monitor" was unsuccessful.You mentionaed at the time that the speakers should respect the following:1) Perform correct in ...
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