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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hi to everyoneyears of reading but never subscribe and post to forumI see that Zarathustra circuit and i m very interested on the first SRPP stageCan someone point out how to implement Melq Gas Bias on that SRPP circuit?I would like to implement a li...
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I read the Owen’s observation and it strokes me that he was in a way correct: the Zarathustra does sound kind of strange and very much sonically it reminds a 150W 300B SET. It has some beauty, sweetness, liquidity and appeal at MF and in someway calm...
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[quote user="N-set"]And paralled drivers? May I ask why you wanted to avoid them but would accept paralled output tubes?[/quote] I would for sure avoid any paralleling, would it be driver or output. Still, driver provides voltage gain and output stag...
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[quote user="Chirag"] Well..my first question would be regarding the application. The big Melq tube is already doing the bass towers...is it not enough current? [/quote]
Chirag, I’m not planning to use this power amp in my system. ...
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I have very little familiarity with SS and with the need of
the SS stage to be driven. If you want then talk to Dima directly or over the linked
site, he is comfortable in English. www.tornadoacoustics.ru/_fr/2/Zarathustra.doc
I would sti...
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I would like to extend my last previous post a little. First off all, I would like to remind that I am very much not an expert in usage of transistor and second - I would like do not convert this thread into those DIY desecration: as you all know I h...
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Chris,
when I got those large 7Hz-1kHz transformers I soldered one of them in my regular Melquiades and listed what it did. Besides all necessary bass benefits I decided to see how plate current would behave if I have no limitations for core satura...
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[quote user="Paul S"]Ironically, the "best" musical bass I have gotten is from the ML2s 16 Ohm taps, which seems to fly in the face of both the concept and the obvious problems that the Z/load creates. What I am saying is that despite the "kitt...
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[quote user="hagtech"]Yes, steel chassis can be both good and bad. It likes to conduct magnetic fields, so you have to treat things appropriately. A little spacing under a choke can go a long way. Otherise you have a 120Hz motor.&nb...
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I recorded the LPs (Bruckner7-TeDeum Concertgebouw/Haitink, Also Sprach Zarathustra Chicago/Reiner - 1954) to digital. Then I lowered the stylus on to the record, but did not have the turntable turning. I played the digital copy at a bit more than my...
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Congrats on the new brats. And family. How things have changed. Even though Amy has introduced sound problems I appreciate the decoration efforts. Also the Angels playing strings tapestry is magnificent. So did you ever get Zarathustra functional...
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[quote user="rowuk"]Regeneration is not rocket science - or even that expensive. Why should decent gear not have it built in? [/quote] This is a very valid point. I told before that if PP were “smart” about stabilizing own future, or if for instance...
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I have a conversation yesterday that encouraged me to think again about the Zarathustra II project. This 250W of pure class “A”, 90A capable hybrid is sitting under my bad horns. All parts are there and the amps 90% built… I need to finish it. It was...
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[quote user="Romy the Cat"]
BTW, I think Dima has a Real name for his amp. I hope he would show up in here and would let us know it… The good thing should be referred by own name… It really deserves it.[/quote]OK , being inspired by Romy's Mel...
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Yes , the idea of time delay machine is completely clear now . I made some experiments with analog and digital parts of the circuit , ewerything OK , and I need to assemble all the parts together , but now I am finishing the new hybrid class A amp - ...
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If LF are sealed, I would suspect that the strong SS/hybrid would be better able to keep the drivers "off the air cushion". When the drivers get to that point I hear something I would describe like this: Take your fingernail and...
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I have been surprised that you have not already pursued the Zarathustra for your multi-driver, sealed LF. From your early descriptions of both, this seemed like a natural pairing and the most likely way to go, to keep the drivers "off the ...
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I wonder if anyone make, commercially or otherwise, any (good sounding?) a two-stages classe “A” hybrid running 100-200W into 8Ohm, with no feedback? AcousticPlan looks like tried to do something but their amp is just 50W and it looks they have...
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This weekend it was 100s birthday of Günter Wand. I was not planning any “events” but the event did found me. Yesterday a local friend of my visited me. Me were listening some music and he brought some Japanese-made and not available otherwise DVDs w...
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Yes, that all makes sense in the listening, but where does it lead in terms of practice?You won't find a better testbed for the idea than my BR bins, where speaker imepedance rises to over 40R at one point.No need to ask if this can be heard; it cert...
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My wording was bad. I am building zarathustra but am a long long way from completion. I do not have the capabilities to just whip one up. Yes the 6n1p was from the old days when i thought i had discovered good sound, i'm sure i still don't know(but...
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R,Please excuse me if this is straying from the subject... feel free to move.Anyway, I was in NYC until Wednesday evening, and I assume I know what is motivating you to abandon Macondo/Melquiades in the hot summer months... what I don't understand is...
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[quote user="Romy the Cat"]This weekend it was 100s birthday of Günter Wand. I was not planning any “events” but the event did found me. Yesterday a local friend of my visited me. Me were listening some music and he brought some Japanese-made and not...
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The passive radiator is simply put a closed box Helmholtz resonator with low "q". What does that mean? It means that the passive radiator only resonates at its tuned frequency and its multiples - regardless of the frequency radiated by the driven woo...
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Here's a list of my current holding of Anton Nanut CDs ....___Beethoven symphonies 1 to 8Beethoven overtures: Leonora III, Coriolan, Fidelio, King Stephen, Ruins of AthensBeethoven Mass in CBerlioz Harold in Italy & Roman Carnival ov.Brahms piano...
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Dima's Zarathustra made it over to my house yesterday fitfully escorted by the Cat on a fine cloudy humid and damp New England day. Having heard the original Melquiades I was intrigued what the amp was capable of and looking forward to its arriv...
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Romy and Dima,
Thanks for the update on the delayed Time Delay research. I sincerely hope the device performs to your expectations.
I will follow your progress with self-centered interest, because in my case, the best scenario still puts the ba...
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Yes, the crossover looks fancy :) More than that it does the job. The vacuum caps are only for the tweeter and the upper-mid beryllium. Still they are bridged with micas as they wont do much alone. Adding vacuum caps smoothens the transitions and sou...
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I keep thinking about the temperature. Whatever the best I heard in Class A was running very very very hot. However, what is the association between sound, heat dissipation design and temperature. It is obviously that any amplifier designers wo...
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I told somewhere at the site about my idea of Zarathustra.
The amp as good as it is but I want to make it super compact and with max efficiency.
The efficiency I was considering to get
by making the secondary of output stage switchable. I got fro...
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