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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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As I promised, I am informing about the fate of the Baby Melquiades project. The Baby Melquiades was armed for few days with new 60H transformer. The result was not positive. It sounded OK but it was not even close to the Melquiades sound. I wa...
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I figured out that my site turned out to be a quite good source for “PurePower’s Survival Guide”. It would be nice to abstract the PurePower into a separate subject but it is too much intervened with the thread of “Bad Electricity” that I decided to ...
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I would say that nothing has changed since last night. The sound still a bit harder then I would like it to have. This hardness is very interesting and in way different, it is not type of the hardness that I would discard as “bad” attribute of sound ...
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A lot of people ask me about those drivers and I’ll try to compile my vision about them. I did try most of the possible tweeters: dome tweeters with cloth cones, varies type of hard metal domes, compression drivers with aluminum, titanium, phenolic a...
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[quote user="Romy the Cat"]First of all I need to admit that I do not believe to people who claim that Purepower produces noise. My units are completely silent and I know other people who have completely silent Purepowers. I have no doubts that the p...
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No surprise, the biggest problem when shopping for "suitable" amps is getting a bead on the sound using systems featuring the truly BAD "high end" speakers and ancilliaries. Still, I actually found something that might be acceptable; but units are c...
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I want to let Paul S know that if he found our QC to be not up to his standards in the past, that he give us a second look. Many of our response timing issues of the past few years were the result of time delays between our Canadian personnel and our...
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I am of course guessing, as to how you got the sound the way you describe it. This "off-set" might be pleasantly less then what I had in mind. It initially reminded me of an effect by having no impedance correction (Zobel) in a midrange driver, and o...
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i currently am in the process of obtaining a bidat,so this new thread is very timely for me.i currently use a highly modified audio aero capitole mkII se and modified 47 labs progression dac.i plan to work with john wright to take the bidat dac to a ...
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"... and I do not know if 3A/167M is better than anything else and I do not see why the metal socket is necessarily better then plastic – the socket is not the part of the tube."As you know, the 437A is like an on-steroids ECC83, ALL glass built, no ...
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[quote user="Romy the Cat"]What however I would like to ask you is the subject that bothers me the most: how can you determine that the record is cleanable? So, my question is – how you differentiate the noisy record that might be cleaned and improve...
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I'm a physicist actually :-) I'm denying modern physics every day. Not to deny the string theory one must be a complete idiot: 1+2+3+4+....=-1/12!!!I've made a stupid mistake and decomposed my EMT for cleaning and now, in big painsand with a help of ...
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N-set, I have not tried the AN connectors. And I think the cited "metalurgical problems" relate to ease and speed (and so, cost...) of immediately available, outsourced manufacturing rather than use of the metals.FWIW, the WBT Next-Gen Ag connectors...
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Certainly it took Technics a while to sort out the motor control systems in their serious DD machines. The earlier SP10 Mk1 is not a good example. On the Mk2 they seem to have got it right. Even with that there are other issues like the mat & pli...
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[quote user="oxric"] Amir wrote:I think our brain is so complex , the ear and brain structure are very very complex in music processing.low THD , high Slew rate , ... non of them could make us happy , i know making an theory for understanding relatio...
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[quote user="rowuk"]In live music, we have intermodulation. Two trumpets or a trumpet and oboe playing together create sum and difference tones that change depending on pitch interval for instance. For music in major keys, this intermodulation is add...
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It seems to happen often enough that I have some idea of how I want to change my system, broadly in terms of sound, but it takes me a while to figure it out and get it done. I remember quite a few "ambience systems" over the years, including the orig...
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I was beginning to wonder if I'd ever get the new listening room checked out electrically and the new system ground installed, etc., but I finished this work yesterday, including a soldered-rather-than-clamped ground wire-to-rod connection. ...
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What I have is a subwoofer made by ACI; no information on the amplifier used other than it uses a two prong power cord, no ground. When I hooked it up to the APS 2000 I got a very loud pitched hum. Taking if off the 2000 and plugging it into a...
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[quote user="ArmAlex"]The price is 167,000 Euro I was told. The material they used for bass cabinet at least looked like MDF. Sound was much better than any speaker I've heard in show, expect Cessaro which was wonderful. BTW Marten, Kharma, Focal, Ma...
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Romy:I hope you go ahead with your project of installing the horns in your attic as you are probably the only person who might pull it off, but if my opinion was solicited, I think you would be very ill-advised to do so. Firstly, the costs involved a...
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I learned of the union from the posts sent to my email box. Sorry to have to admit I have been lackadaisical about checking in. You had not been posting much the months previous and now I understand why.Wrote a note to Clark and he confirmed to me ...
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to get worthy advice, perhaps you could share some info about your present system and musical tastes, also what it is you like and don't like about your present set-up, and how you'd like to change it, beyond "flat + extended highs". If you have rea...
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[quote user="Paul S"]Thanks, Scott L. I get the math, and no doubt hearing is believing. Still, I do know for certain that "a driver" can be influenced by a defined amount of trapped air in an enclosure, at least as far as the sound that comes from ...
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Operating a driver in an open baffle will cause front-to-back sound wave cancellation, aka the acoustical short circuit. In addition to this, a plane board baffle offers zero air load to the drivers cone. This is not good. That's why it sounded like ...
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[quote user="morricab"] Because I don't accept your basic premise of a new sound from scratch that's why. [/quote]Well, you are perfectly entitled to don't accept it, many would not accept it the concept, even more people would not understand it. Sti...
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At first I plan to power the thing SET, with a known, existing amp (a triode wired EL84) which I've already built and know the Sound. It is not bad, but a little "warm" sounding (second harmonics, and is low powered for low frequenci...
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In this exalted company its probably not up to much but I've not heard anything else demo-ed that makes me want to change. :)Front end: Vista laptop with XXHighend software (best sounding bargain in Hi Fi). Fireface 400 external soundcardDAC/Pre amp:...
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[quote user="Paul S"]While I've hardly gone out of my way to learn more about streaming digital, the reason for that is the consistently mediocre results in my experience. Really, how does one rate and build on streaming digital in musical terms? So...
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I don't know the full story of how loudspeakers went from field coils to permanent magnets. I believe that ultimately it was dictated by the price and availability of Alnico. Eventually Alnico became cheap enough to make similar or higher strength ma...
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