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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy,I would like to know, if you do not mind to explain, since you cannot drive your bass modules using SET, why you use Solid State amplifiers instead Pentode or Push-Pull Triode?Thanks!...
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[quote user="N-set"]Risking that the topic has already been discussed and that I postin a wrong category (Romy feel free to (re)move this post:Is there any sense in trying 6C33 at higher volatges and lower currents?More precisely, I've been wondering...
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Wow, I never thought of that before. But you could be right. Perhaps the only section of belt contact that matters is that last inch or two before it leaves platter. Clearly the belt does not push, it can only pull. And if bel...
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[quote user="Amir"]This topic is my corner , it is about my ideas , my setup , my news and my story. I write here because i do not want create many new topics. I think it is better to write only here.There is No need to read my topic If you think my ...
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Romy,do not spit in my eyes as I do have solid state PassLabs 350.5 but even with this 50W Class A amp (push pull) it is exactly the same problem if it is switched off completely even for a short while. I can take ~ 2 - 3 days to be back to norma...
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I just visited the Highend in Munich and had the chance to listen to two of those monster SETs. Cessaro showed up with monstrous 833 amps and my thought was that there is something wrong with the music. I know it is common in this forum to describe w...
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I think low power ss design is the only way we can make ss to sound good. in my idea all high power ss design i heard had no emotion in their sound in comparison by good SET designs like AN UK Ankoru.the first SS design that make me happy in comparis...
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I am beginning a small tube project, and Hammond transformers came to my attention. Are they any good? I am thinking
Hammond 1650W for output, with 6550's in push-pull.Thank you....
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This topic is my corner , it is about my ideas , my setup , my news and my story. I write here because i do not want create many new topics. I think it is better to write only here.There is No need to read my topic If you think my topic is moronic or...
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Thanks Romy. The monopole issues I referred to are in the areas of coloration and presentation throughout the spectrum, that can be solved/masked effectively with dipoles. I am very aware of the dipoles' shortcomings in the bass area but they do not ...
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Romy,I am very interested in this thread as I have heard the latest version of the speaker "eufrodite mk IV" . I do not think any of your objections would be changed by the latest version as he is now using push-pull array of beyma 8" drivers up to 2...
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Romy Hi, Raplh uses a 300b push pull, but the power supplies are massive, parts alone 15K Euros, each channel has a separate supply, the pre-amp again two massive power supplies , he prefers to use eight of the horn loaded bass bins, although I...
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Well, this certainly shrinks chassis size, if nothing else. I've never looked at the circuit, but there has to be some sort of transformer function at each end, up and down, and the easiest way to do this would be with transformers ;>). ...
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I have heard vintage tannoy red (driven by 30w push pull EAR 861) and vintage tannoy gold (driven by 20w set ongaku japan). I think for 92db the 20w is not good idea.http://www.goodsoundclub.com/Forums/ShowPost.aspx?PageIndex=1&postID=3746#3746T...
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well fine, my X350.5 does 50 watt class A, and of course in push-pull. I use it with 120 watt max rated 3 way speakers of about 87 dB efficiency. You can see on the 350.5's centre instrument dial if you go out of class A. If I go out, I usually fear...
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romyi never heard before regarding this technique of push pull, ore isobaric design. i searched the net, and i found it very interesting.That means when one driver cone is moving out of the enclosure, the other is also, but, due to the way they are m...
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The “Enjoy His Music” published the old celebrated by many DIYers Herb Reichert’s article about his 300B amp ideas.
http://www.enjoythemusic.com/diy/0709/flesh_blood.htm
I read it before but reading it now, after a few years again...
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[quote user="Romy the Cat"]The point is that the people who do “get” what it is all about do not need to witness chewing details and they do not need any explanations – they have own mind and own ability to discover (reinvent) the thing on their own....
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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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[quote user="KOTriode"]Romy, in the contrary, it is very unfair to compare my 845 amp with the 6C33C. The main reason is the 845 amp used the best output/interstage transformer available, while the 6C33C's output xformer is pretty good but far from b...
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Take a look at the below Dumax Report on the Dayton Titanic Mk III subwoofer.
http://www.parts-express.com/pdf/295-404dumax.pdf
Of course this is not the woofer I used, but the asymmetry seen in this report i...
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[quote user="el`Ol"] Hello Romy, have you searched for explainations for these observations? Are there others who made the same observations and tried to explain them? Does the damping factor play a role?From my limited experience I can say that ...
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This material is courtesy to Mr. Shibazaki, the owner of Sibatech Shop in Tokyo, that sell internationally Japanise Hi-Fi equipment.
http://www.sibatech.co.jp/
I hope that Sibatech people are more decent then our american distrib...
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[quote user="Paul S"]Amir, what you say and the simple way you put it is indeed a very important consideration for speaker/amp matching, and it is something that one must actually hear and cultivate in the first place. Since there is no way to emperi...
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Must be the ZH270 you are talking about. I can understand what you mean with regards to the PP device - it is accurate and doesn't suger the pill in any way. I personally don't think amplifiers should - colouration is a short term emotional fix - a l...
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The 6sn7 is a fine amplification tube for use in preamps or gain stages, but it has way too high of an output impedance for driving power tubes. This is my personal preference. It also depends greatly on the topology. Maybe George u...
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[quote user="Romy the Cat"] Paul S wrote: I wonder, who would spend a significant amount on any phonostage that did not offer a coherent, easily-repeatable variety of playback curves? I do not get Stereophile and I do not know anything about Vitus MO...
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Vasyachkin, to say honestly I do not think too much about dipole bass. What I head sounded unacceptable and it was unacceptable not by specific implementation but buy some common character that was characteristic to all dipoles I head. Loose up some...
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You might want to try covering a section of plywood with the modified cement/mortar recipe as a test before you write it off as too difficult or too expensive. Basically, it does pretty much what you ask, and it need not be 2" thick, either; 1/2" or...
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http://www.stereophile.com/reference/406howard/index.html#Yf8j2w7Oy8utf7Ez.97
Jean Hiraga idea :"According to this view, an amplifier that produces dominant odd-order harmonics—behavior typical of push-pull designs—can never sound as natur...
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