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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="Paul S"] If Marko "needs" 3rd order, is somerthing else amiss? [/quote]It is not amiss but an area where the things should be explored. What I like about horns that they have very little ambiguity and if everything is done “properly” the...
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Jessie, in the configurations of the horns and derivers that you are building your mid channels do not exposed too much to stresses. It is not that you have a situation when 1/4 octave more and less will send your channels into suffocation - your hor...
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Yep, Stefano, it looks like we do have similar views about the subjects we touched. Let go back to exploring one of the terra incognito of compression driver – the sound of Goto.
I would insist is that to judge sound of Goto driver from the installa...
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While Dima is cooking the Super Zarathustra I figure out that I would need some test speaker to be able to observe the preliminary results. I would not be able to drive the multi-channel Macondo with a single full range amplifier, so I need something...
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Chris, I have no experience with good sounding SS amplifier that might drive high sensitive horns. I also have no expertise to build such an amp. From what I trued before I have learned that in order to sound more or less acceptable the SS should run...
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[quote user="ml8"]...but resistor between screen grid and plate, to my hearing, makes sound slightly unnatural, especially in highs.But this may be not true in your case (i didn't try to use this resistor with 6E5P, only with other power tetrodes), s...
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[quote user="RonyWeissman"]Hi romy, thanks for info. I am going to stick with the 2-stage plan then as it will not be DSET but full range and my mid-bass is somewhat barbaric at this point. I have found someone to build for me, though we ha...
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I was contemplating the 6 Channel Super Melquiades conversion – it will quite a revision – and I am slowly inclining to make it not 6 Channel but 7 channels…Anyhow, the post will not be about the needs of extra 7th channel but rather about one of the...
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If to look at the Melquiades schematic in the channel “A” you will see 78H first order low pass filter.
http://www.goodsoundclub.com/PDF/6-Chennal_Melquiades_DSET_Amplifier.pdf
The low-pass filter in Milq and the low-pass filters generally is great...
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I talked for a couple of hours today with a local Solar Power technician, I sort of told him all the gear I have that would need to run on batteries and we got a shaky number; from that number he started calculating a bunch of panels and batteries a...
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[quote user="nl"] Gordon Rankin of Wavelength Audio did a series of one-stage DHTs with a step-up transformer input about ten years ago. I think they were called the Mercury series. By all accounts, they sounded good, but of course had limited gain, ...
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Since I know about a few ongoing attempts out there by different people to build Melquiades I would like to share with some of my observations regarding corrections, simplification and possible modifications of Melquiades amplifier.
Obviously you ha...
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[quote user="twogoodears"]I'm pretty interested in yr. opinion about the possible choice of best, safest, smoothest way to use solid-state amp/low-end with "Triamp"... ok... 3-channells DSETs... and my system upper ways... what slope do you think...
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1.- Finding specific solutions to specific problems[quote user="drdna"] .... I have high-sensitivity horn loudspeakers and use some 2A3 SET amplifiers, which make very good sounds but I am looking to get closer to the Sound, which to me is feeli...
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I do not think so. There is no such a sing as optimal generic DSET but there is a concept of optimal DSET for a given situation. So what I think would be nice if some kind of company come up with a Reconfigurable DSET . The Reconfigurable DSET, or RD...
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I think it is a simple case of different strokes for different folks.
Drdna writes about communicating the essence of sound - I write about the essence of music. He writes about wondering what Coltrane was thinking. I write about hearing him looki...
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[quote user="Romy the Cat"] The second action is a process of active injection of sonic particulars into down-line components…..That dual activity should be always understood as two separate elements of PurePower’s contribution. [/quote]This re...
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[quote user="Paul S"] Romy, on Fundamentals channel did you leave the 20uF cap at speaker level or did you re-configure that band pass at line level? [/quote]
Nope, it is hoe it depicted the 20uF cap at speaker level. I see no problems with ...
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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="jessie.dazzle"]I really appreciate the result of the 180Hz horn with the S2... Particularly in terms of "texture". It is responsible for such an important range... [/quote]
Well, if you appreciate the lower knee of the S2 driver then wa...
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Well, when we are talking about Cogent we need clearly differentiate two things: the Cogent’s drivers and the Cogent’s installation. The problem is that since Cogent’s drivers are something so called “compression drivers” then their performance might...
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All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
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[quote
user="anthony"]Hi Romy,
So it is time to think about the bass output
transformer in my DSET. My bass channel will be 8 x 25W/8565-00 each side
set in a sealed box and will cover the frequency range below say 100Hz.
These drivers can be ...
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Eventually I spant last nigh 3 hours to listen the Peter’s K-Stereo processed CD’s and took some notes, Below are some real-time comments of this listening session.
Playlist 06; Song 01.Track 1; 17:27.Serge Koussevitzky, Boston Symphony Orchestra.Tc...
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same procedure as every year...
When we did a visit at Munich we are no negative audiophiles, we are curious and just wanted to know what is going on.
Based on recession 30% less Exhibitors were there, from about 360 in 2008...
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[quote user="stuck.wilson"] having seen the benefits of first orders in my own application tonally AND dynamically[/quote]
It's never was my experience. A never seen any tonal distinction between first and second order and I don't think that I exper...
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My current speakers are Edgarhorns with the straight 80hz upper-bass shell. The bass never sounded correct to me. The problems with Edgar's mid-bass are well documented at this site and elsewhere. I tried some simple modifications to the crossover...
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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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[quote user="manisandher"]I asked Dave Peck of Avid (formerly Euphonix) a few questions regarding the Model Two (otherwise known as the PMI). The responses he received from Keith Johnson (one of the original designers of the PMI, head of Referenc...
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[quote
user="Jorge"]We only
use the Beringher for bass under 100 hz, driven by the main amp. We tried a lot of different
solutions, including analog active xovers, the DCX is clearly better than the
Analog Xovers we tried. There
are very few com...
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