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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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One was the Llano Design Group's Trinity, which had 300wpc. The first stage was tube and was in a separated enclosure providing voltage amplification, while the second stage used transistors for current amplification. I guess it was pure cl...
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[quote user="el`Ol"] Copper domes??? [/quote]Yes, the pure copper domes. The nee a LOT of power to drive them though but they do very wonderfully if you do.
[quote user="el`Ol"] The Lansche is one of the speakers I would like to hear. Is it sonicall...
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I want to kiss this damn thing! I agree with Romy that hearing a good FM redefines what a (true) high-end is. For the past 5 days I've been listening for live FM streams of baroque concerts from Gdansk http://www.actushumanus.com/
Covid dest...
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[quote user="op.9"] Amir wrote:I listened one time (just one time) to master tape (revox reel).micro harmonic was so better than dCS Elgar (digital source) and it was better in micro dynamic. i did not tested good DSD in a good DAC vs good analog but...
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My room, is 16 to 17 feet wide, 27 to 28 feet long by 12 to 14 feet high with all walls splayed, with a combination of absorption and diffusion on the walls. All electronics are fed electricity by three pure power units originally recommended by Rom...
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Well, maybe a little cussing first to set the tone. The older SPU's are now well sought after, many will end up in collections at now over inflated prices probably in the Far-East where they are worshipped. I've heard a few older SPU's and even those...
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[quote user="Romy the Cat"] I plug it for a first time today. It looks like it is sensitive like hell and I did not hear any titanium problems on it even without low pass filter. I do not have infrastructure now to look into it further. [/quote] I ...
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Thanks, Eduardo, very interesting. The YL 75000 has no phase plug and 70Hz with 1” trout. It look to me like a conventional diver. Which beds a question: if to reduce compression with our classic drivers, loose plug off and reduce power then can we ...
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Anybody who ever tried SS amp with compressions drivers or the drivers of high-sensitivity that can be driven by minimum current knows how it works. Nelson Pass created with his First Watt project a lot of publicity to the idea. A few watts, in p...
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I was playing today with Stage Acompany SA 8535 Ribbon driver. It is truly 103dB sensitive little monster with crazily large 3 poll Neodymium magnet. I did listen the driver and there are some things that I like in it and there are some that I do not...
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one would take full advantage of what can be done in the digital domain so that the horn mouths could be arranged, not for time but to clean up their other interactions. This would be digital the entire way, solid state music files, digital amplifica...
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I have to admit that I personally care less about powerful full-range SET amplifiers. I do not take their sound seriously, in fact I do not believe they are cable to do “right full-range sound” and what I see then I always imagine them with huge, bar...
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[quote user="dazzdax"]Hi Roman, FM Acoustics amplifiers from Switserland have been regarded by many audiophiles (mostly the ones with lots of money) as the best sounding (solid state) amps regardless of price. They even bettered the best amps from Kr...
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I did not say how my saga with APS Pure Power regenerator finish but it never finished. Since the end of the last year the regenerators is sitting in my closet and I have sent the unit’s main board to APS people for the “revision” as I do not feel it...
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[quote user="Merlin"] Indeed the linearity of the Berning in comparison with the Lamm is quite remarkable, and indeed could be disconcerting to an inexperienced listener brought up on large increases on 2nd harmonic at the bottom end. [/quote]
“The ...
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Here is another question that almost from the DIY-Audio universe. Dima is finishing Zaratustra II amplifiers. It will be quite interesting beast and I’m slowing begin to think about the power supplies – it will be my responsibility. The Zaratust...
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[quote user="Romy the Cat"]Is your “noticeable ever-present buzz” coming from loudspeakers (I mean is it acoustic noise) or is it a mechanical noise that coming from regenerator and it comes from your component plagued into the regenerator. In first ...
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It is ridicules how pleasant the Yamaha B2 sound when it operates in class A and how much worse it sounds when it switches to class AB. I did not measure the power but with default 40mA it switches to class B very soon. With my current cooling te...
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This is a whole point with the screens. I spoke with the guys who practice HT and the gave a whole lot of information about screens p I kind of find it ridicules that they are expensive and I find it not true that they are “difficult to made”. The mo...
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Since I installed the 3 of PP2000 units they do work wonderfully. Since my days 2-3 years back when a turn of power switch on PP1500 required to dress in bomb-squad outfit and when any switching might be the very last switching, I kind of have th...
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[quote user="joaco"]Romy , I don´t think this is a typical ups unit , but a little more advanced than a typical ups . I think typical UPS does not have double-conversion , at least here in Chile . Note that Pure Power claims "via double conversion te...
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[quote user="Paul S"] It is stupid, of course, but still we persist in comparing "live" and "reproduced" sound. But NO ONE EVER confuses video with life… [/quote] I disagree with this statement. I would argue that it “in a way” reversed. I said “in ...
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I have modified my system to make sure it has a single dependency on AC. Until now, everything was plugged to PP except one regulated PS for the PC feeding the DAC. This PS in not on PP because it generates lots of noise, and plugging it to PP inject...
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We have made a decision that we do go for the hardwood floors in listening room. We end up with unfinished quarter sawn red oak with Vermister" waterbase urethane. We will try to render the project in September.
This will imply to remove the w...
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Tesla Battery -> Tesla Inverter -> Purepower 3000 -> Audio System
using Tesla powerwall inverter before Pure Power , any experience? any idea?Thank you in advance...
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Morricab,
I do not know the “truth” and what I said are pure my speculations based upon what I hear and what I measure.
Yes, Lamm drivers at 310mA quite hard but do not forget that his objectives, besides everything, were to get out of his SET max ...
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[quote user="Merlin"]... my own feeling is that David Berning's solution is both neater and more practical - the only impediment ot it's acceptance, the dogmatic approach of many thermionic die hards. My experience suggests it's their loss. [/quote] ...
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[quote user="KOTriode"]The preamp has the classic tube regulated power supply using 5R4, 6AS7, 6SJ7. It is transformer coupled output and has no capacitor in the signal chain, the gain is about 8db, so it is not a buffer. For convenience, it does...
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Yesterday I got two emails asking me about Lamm ML3. I replied as I usually do, saying that I that I do not practice in satisfaction in audio-consumer curiosity. Still, it made me to think again about a hypothetic amp around GM-70.I am not a fa...
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The first order from iran (2013) was 4 unit (4 pure power 3000) and Richard delivered 2 units after 4 years .
after over 1000 email/phone call Richard not delivered those 2 units yet.
I do not know what is going on but I hope ...
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