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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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In fact I posted a question to Wolf and he replied that he can produce the coil of any voltage the customer would like to have. That is good. The below is data by Wolf von Langa:
MI-1428 - original version of the RCA 1428 - especially made for...
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Romy,Thank you again for a helpful reply. Your comments are very appreciated inspite of not suggesting what to do. I will figure that out myself. And here is what I've learned so far:>> Herman, if you use Precision Devices hen you are at mid-hi...
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Thanks, DaveWhat kind front-end your tuner has?Romy, probably best I point you to a datasheet as it contains more information than I could fit in my reply :Dhttp://www.nxp.com/documents/data_sheet/TEF6730A.pdfAny further information about the tuner f...
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[quote user="oxric"] I have always felt that if I went for a vertical array of 10" drivers, I would keep the drivers closer spaced than you do in your 'Dunlavy' made enclosure. Based on the 110" height of the tower, I see that you would be doing this...
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[quote user="decoud"]So the ambition is low, and I am after a simple solution prioritizing these things, but the question of general interest is whether anyone has found an elegant way of turning the constraints of space into a virtue [/quote] We...
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[quote user="noviygera"]anyone familiar with the sound of this amplifier RH-307a?[/quote]
The RH Amplifiers is a snippety subject. For what they meant to be they are reasonable design avoiding large cap in feedback and in particularly of you have ...
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On any USA electrical wiring system, ALL circuits are referenced to and mechanically connected directly to a common ground at all times via the "neutral" wire, which ultimately connects to the grounded bus in the service box. And all UL electronics a...
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Actually is not mystery but juts economics. BTW, the large Wilsons are I believe are not juts ported but so called fourth order design. With a sealed enclosure of the identical size the Grand Slam / Alexandria would go in Stereophile category of spea...
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Romy, I have a very large collection of 45 triodes.... many brands and varying internal construction. From my humble viewpoint, here's some personal findings on the various types:- Globe 45 tubes... these are the earliest, mostly from RCA. There are...
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Nope, the Russian tubes generally much, in fact much worse than western equivalents. There were however some exceptions. Those options were due to various reasons. The tubes like GM70, YO186, 1P24B, 6E5P, 6N30P, BO188, GM57, UB180, 6C33C, 6N6P, M...
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Hi!
Stefano just made me aware about this forum, so I registered. Interesting thread about LCR RIAAs, one of my favorite topics :-)
About the gain of the WE437 phono: Since Stefano wants to use external MC step ups, I designed the phon...
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Moreart, somebody sent me this link last year. You are surely the DIY pioneer of back loaded Manger.As you probably know this is a touchy speaker to work with. Rated at 91 dB/W input by the factory, we measure ~91 up to near 92 dB/1W/1m in our two mo...
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First: Anyone with a pair of 8 Ohm Fane Studio 8Ms for sale may contact me (contact info available by clicking on my user name in the blue column on the left of the page).In answer to Romy's comments: I agree that there is a deterioration in sound qu...
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Upper range effect is amassing, though not much different then with other regenerators. With PS Audio’s Power Plant the compression at MF-HF is also reduced or eliminated and that ugly heavy dense pressure blanket got lifted. The Power Plant while do...
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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="Paul S"]Some time ago Romy threw me a fish in the form of two numbers, 280 and 185, meaning mV and V, respectivly, and I finally got around to chowing down. I was getting annoyed with the sound this morning to the extent that I bus...
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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="RF at Ona"]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 the mundane things...
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I emailed to Bo and he said that they can't provide individual units. There is another interesting drier out there. It is RBN180 18” toll ribbon with reported sensitivity of 110dB
http://www.alconsaudio.com/site/technology.html
I never heard it and...
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I know Lamm is not in the business of making speakers, but from my point of view, they are missing more than just one opportunity here.
Rather than addressing the lack of excellent, high sensitivity speakers by offering a more powerful amp, would...
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If I may add, from experience, following and including Romy's post above:1) In cases of established incompatibility with a average power SET, more output energy (55W), will not completely clear the above 2) and esp. make 3) less "muddy" or ...
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Myth, perhaps but let look what might actually the myth migh be. There is nothing “on a paper” that presumes a good sound. 109dB sensitivity is not automatically means anything and a 300B SET is not a definition of some kind of abstractive quality. I...
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A few year back a Russian audiologist A. Likhnitsky’s published a book “Sound Quality: New approach to testing of the home audio equipment”. (P&K, 1998) The book has many positive moments and altogether it was a wonderful attempt to bring i...
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This is an article from Thomas Dunker's site (available in my Links Section) and presumably written by him. Although I slightly disagree with some of the statements he made about the horns “imaging” and some others but generally it is very good...
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Hi,
Thanks for the info about transformers. It is as I expected, however, that these passive devices are not passive sonically at all. I agree with you that the higher quality of the transformers should lessen the effects I noted (if not elimi...
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Antonio,You should expect to hear just the music. In explaining the effect of this process in words, I am in a simmilar position to Romy with his Melquiades amplifiers.Most speakers sound just fine, to those who are used to them. We have, in our sens...
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Well, the game with a “better” 10" bass driver is over. After years of mind looking for the 10” light-coned, papered 20Hz drivers with higher sensitivity and after a month of quite active searching for such a driver I concluded that such a driver jut...
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[quote user="Chirag"]Outside of the already constructed bass towers, is there a reason you are looking exclusively for 10" drivers? I have heard a pair of stacked 15" Lambda's on each side supplementing/providing bass to lower midbass under som...
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If you are an adherent to single-ended amplifiers and high-efficiency loudspeakers then undoubtedly you came across to the thought what to do with LF sections and how to drive them. The high sensitivity at LF comes only along with the non-resolvable ...
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[quote user="morricab"]Well Romy, IMO they are not just tonally different they are more tonally correct, ie. they simply have less coloration than other technologies. Just listen to a recording sometime made with a ribbon microphone and you wil...
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