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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="decoud"] Romy, can you be persuaded to post a sketch of what you think the optimal 2 channel Melquiades circuit would look like? [/quote]
Decoud, I do not think that there is such a thing as optimal DSET. The entire concept of DSET is a...
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Guys,
you do not need to ask this question to anybody else but the APS themselves. Would it make sense to ask a manufactures about the principles of their products operation?
I would certainly not talk to the APS re-salers as they even fur...
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Yes, it is a bit ridicules to have 4 boxes – a clearly money-raising project. Probably Lamm need to make it 2 chassis init with box #5 is to store manuals and box #6 to store the tube replacements. Talking about tube – one gain state with 4 paral...
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[quote user="drdna"]…… people forget that a circuit is a physical collection of dynamically interacting electromagnetic fields…… [/quote]
Isn’t it might a separate VERY large subject?
[quote user="drdna"] The low level resolution is exquisite but t...
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Well, if I stop to post in this there is does not mean that the problem is not there anymore and with a new few weeks I hope to attack the electricity problem again.
Firstly the new version of APS Pure Power regenerator is coming and they are about ...
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I had sent my PurePower+ 3000 in for an
“upgrade” (one of many!) back in December 2013 to resolve an issue with a noisy
choke when under load. It still has not
been returned 5 months later after multiple broken promises by the company
president ...
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[quote user="drdna"]After seeing the variation in the sound of the TU-X1 to the quality of electricity, and thinking about recent discussions about the Direct Heated Triode, I would like to start a compendium of anecdotal observations of the idiosync...
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[quote user="Paul S"]So, does anyone know anything about "good" sockets for the ML-2s? I forget when and where I saw some sort of boutique Teflon jobbies that are pretty darned expensive. Maybe DIY Hi-Fi, in Hong Kong? Also, although Teflon is a ...
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[quote user="PurePower"] In the world or audio you learn new and interesting facts every day. AC caps (ceramic, electrolytic, polyester and polypropylene metallized foil types) can buzz at various frequencies. This is not nonsense, and is quite...
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A few more very simplistic measurements to extend on my comments. Here is the raw wave from the wall:
Here is the PurePower with 0W load
Here is the PurePower with 50W load
Here is the PurePower with 700W load
The load that I used everywher...
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Roman,[quote user="Romy the Cat"]Nevertheless, if that bass was truncated between the stages then the devastations are way more severe. [/quote]That may be so, however an LF response of less than -0.1db down @ 10Hz is what is normally called "ruler f...
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[quote user="KOTriode"] The Melquiades give me inspiration to build this 6C33C amplifier. It's on a stereo chassis that has few unique features - Vacuum tube rectifier separately for Input/Driver and Output tubes. - Regulator using the same tube ...
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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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[quote user="TonyB"]I disagree. I think it depends on the turntable. If I did not try it on MY turntable, I would not believe. My Verdier uses a DC motor "sloppy" mounted on grommets. The drive is linen thread. I have tried silk, different threads, 1...
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[quote user="Romy the Cat"] Anyhow, I like your idea about the "memories" but not in the context how you used it. [/quote]
I kind of semi-write about it in the thread about the “Remembering Sound”:
http://www.goodsoundclub.com/Forums/...
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A few days back I posted the following post:
http://www.goodsoundclub.com/GetPost.aspx?PostID=8922
…proposing the parties of interest to play along in Milq vs. DHT competition. This interst derives from the following thread:
http://www.goodsoundcl...
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I had one for about a week and was not happy. Switched to a Kenwood KT1100.
Here an honest review that matches my experience. Bottom line is that on stuff this old, the individual buyer will determine the price, not the market.
...
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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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First of all this post is NOT related to the recent PP2000 problems but it has a border, general view.
The recent LX’s posts made me to think about the PP2000 buttery. He reports that his buttery got way weaken from 2009. I used my older PP200...
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I am very much do not like the current state of my mind about the single-stage Milq. Let me to explain….
In 2001-2002 I spend some time trying to assess the sonic influence of PS to sound. After making numerous tests and prototypes I concluded that ...
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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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[quote user="Paul S"]Lamm did choose to use some of the driving ideas from his proven SET amp…[/quote]Yes and no. ML3 design wise, as I understand is, in fact is not as interesting amp and it might be otherwise. Vladimir went for the target marke...
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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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[quote user="Romy the Cat"]Over the course of the last year I have been gently harassing my transformers-savvy surrounding trying to evangelize them into amorphous core. They stubbornly and perhaps stupidly resist. Some of them not…
During th...
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[quote user="Romy the Cat"]Also do not forget that the phonostage that you built has very lash and very polite sound. [/quote]I would like to stress the politeness and lushness of 834PT-AIR phonocorrector. This characteristic of this phonostage s...
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I do not make any claims just inform about the LessLoss standing. I do not know how much BS in this and HOW they removed the “outer layer” of conductor from the pass but who knows… might be they are up to something… It is said that begin all thos...
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Well, I screw-in today the S2 with filed-coil into my horn. I decided to drive it with 2.4A. I used a regulated DC PS and did not employ my prepared for this tusk 4.2 Farad capacitor: the voltage is too high for my cap. The current gave me a ni...
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…and since it is in LL line I presume that it might be right along with LL2 Preamp – not particularly interesting preamp. In other words it is most likely the “positively expected” and “might be interesting” continuation of the L1 and L2 line.
...
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Ok, the Headphone “Baby Melquiades” protect is over. Well, kind of over as there are some issues still are hanging in there.
A brief summary. The initial idea was to use the Melquiades’ input stage to drive headphones. Unfortunately it did not...
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This is very interesting subject.
I expect that tghe new Midbass horns will have somewhere 108dB sensitively anechoicly. The driver is 99dB and the hyperbolic curve has much more EQ then Tractrix and that is more important the EQ that work mu...
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