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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Continuing to harass the readers of my site and myself with the good news about the performance of my SA8535 driver I would like to post a very educational article about the subject. As I told before, being familiar with sound of ribbons then never i...
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Well... tis for all reading/following this thread. As Romy pointed out, having high gain is not the same as power. And as Adrian hinted at... the overall system paradigm is important. If you're only barely cracking the volume control on yo...
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hmm...I didn't realise I had left my browser logged-in to your site (I left my PC on over night, downloading some files).'..the only advantage that class-D amplification has is cost, size, heat generation and power.'In my eyes, that's more than I cou...
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The Other End of the Single End: Modern Horns Done With Flare An Interview With Dr. Bruce Edgarby Dave Glackin, printed in POSITIVE FEEDBACK. 1996
Dave Glackin interviewed Dr. Bruce Edgar in his home, prior to the 1996 WCES. A follow-up on the speak...
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If you contact the guy he will probably tell you where it is from. It is good and it is a bigger flame than the one used by Acapella. The ion tweeters absolutely need clean power AND need to be isolated from the rest of your system as the...
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What even more interesting is the relation between sensitivity power. Evan a quadruple increase of power is no compensation for decrease sensitivity. There are many objective justifications why “power does not help”: flux modulations, thermo desertio...
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Looking again at the NAT Audio Magna amp, the amps around the 833A, GU81, 50TH, 1000TH, GM100 and many other SETs that try to use powers transmuting tubes I feel that the entire endeavor of powerful SETs shoot itself in a leg.
If a person has too de...
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What do you think about the technology employed here :Shindo Latour http://www.shindo-laboratory.co.jp/English/Latour.jpg Units: Field high frequency unit and Field low Frequency unit and power supply units for Field coils. Enclsurers:floor type. F...
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[quote user="floobydust"]As Romy pointed out, having high gain is not the same as power. If you're only barely cracking the volume control on your amplifier or preamplifier then it should be obvious that you have more gain than you need. If you're p...
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[quote user="Romy the Cat"]What surprises me however is why you have expressed an interest in the high power tubes? You are with horns and even you LF sections have over 100dB sensitivity. What will you do with 120W SET?[/quote]The subwoofer still ne...
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You might find that you don't need that much power.When I first built the ULF channels I assumed they would require loads of power, so I bought a single, mono, 1KW class D amp to use in testing. Then I tried driving them with a pair of M1.1s that I h...
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Nope, I am not familiar with sound or applications of this tube. It is indirect heated beam tetrode – why would it be any different from the whole family of beam tetrodes? From my perspective it might be interesting for ULF DSET solution as it has a...
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With my limited experience of using pentodes (primary as phono corrector first stage) I think that the most mysterious in them is power supply of bias to "other" grids. Looking at the Milq schematics it is obvious that I pay too much attention to th...
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Thank you for your answer.If I understand well, In purpose to do something realistic and good sounding. I should use at least 2 amplifiers (one for high frequencies and the GM-100 amp for low frequencies) with a tubes active filter at the inputs of e...
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[quote user="RF at Ona"]Romy and friends,Reading about the sensitivity of your system to electrical power supply problems reminds me of the days when I used to make my own equipment as much for the learning experience as for the final result.One of t...
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[quote user="haralanov"]N-set, a friend of mine built an amp with this monstrous USSR tube. It has 3 stages and the GU81M is driven by 6C33C. Within context of driving mid or high sensitivity bass drivers, this is all you need. In comparison, his pre...
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The reason that I built the 6C33C preamp was to explore the 6C33C true musical potential like I did with the 845. Not only did I compare the sound of these tubes in power amp, but also in preamp. The reason is that with power amp you might hit some l...
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[quote user="jessie.dazzle"]You might find that you don't need that much power.When I first built the ULF channels I assumed they would require loads of power, so I bought a single, mono, 1KW class D amp to use in testing. Then I tried driving them w...
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Among many outrages foolishness that are so common among the people who going high-end audio one of the most ridicules is use of Single-Ended Triodes and low sensitivity speakers. The people who have db-meters between their ears instead of brain are ...
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Another particle of a good Horn Propaganda. It was published in Sound Practices in 1994 and written by Joe Roberts. I disagree with quite many of the author’s statements but his strategic view that the majority of the horns and the horn installations...
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Despite the tremendous popularity of the single-ended amplifiers have a certain group of audio people, let to be honest: the SETs do not sound REAL in audio people’s listening rooms. I was in many of those listening rooms and have heard many best SET...
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[quote user="drdna"]Still Robert Harley does end with a statement I can agree with: "Perhaps the low-power amplifier/high-sensitivity horn-loaded loudspeaker approach... is the true path towards creating the illusion of live music in our homes."[/quo...
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[quote user="Stringreen"] My opionion is that there is no absolute tone - just as there isn't an absolute sound. [/quote]I disagree. I do not know how about the absolute sound – it would be a difficult subject but “Absolute Tone” is not only ease be ...
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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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Hello Romy,I am no power expert but here are my observations on your situation.Even though a PS Audio and others create a perfect AC sine wave this does not seem to be the answer, even for low draw front end components. It seems that some type of&nbs...
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Roman,
I can't follow most of your arguments. There are many ways to do things and to lay out the architecture of a system. This line/phono combo was designed to work together and to the given requirements. 75-85 db of gain ? Remember thi...
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The Lamm ML3 made me to think about this subject. Since my negative expectations about the ML3’s Class A2 operation turned out to be wrong and since we go into expense and efforts (totally unnecessary in my view as DSET make it worthless) and m...
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[quote]This is very bogus notion[/quote]Well I am glad to see you feel that way. You never know - some people cry foul when such happens. "Hey, that was my idea! And now this guy stole it and put into his own product." It happ...
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[quote user="hagtech"] I run the driver tube at 170V @20mA. I don't think you need to run this tube at high current. It is very linear with wide signal swings at this bias. [/quote]
Good operation points for use it as a driver. You might...
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And you are right that it also has a regulator within the power supply. This is stated within the owner's manual but it would not allow me to copy it. They use rather convoluted language. Maybe this is the result of translation?To quote from the r...
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