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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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The 1933 articale in Radio-Craft by W.H. Hollister about DSET systemhttp://www.goodsoundclub.com/pdf/BiAmpArticle_1933.pdfThe Cat...
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For whatever stupid reasons the DSETs (Dedicated Single Ended Amplifier) are not as popular among audio people as they SHOULD be and this imperfection I am trying to attack.
So, if you use SET for whoever propose then it fine but if you e...
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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="Romy the Cat"]I am sorry; I do not follow what you are saing. I see no relation between a need to use a crossover with DSET topology. The Cat[/quote]What I am thinking is that with full range amplifier, you must use a speaker level cross...
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http://www.audio-talk.co.uk/phpBB2/viewtopic.php?t=5596&postdays=0&postorder=asc&start=0&sid=5911a3973d08037f3068aa212841128a
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[quote user="Romy the Cat"]Make the full-range and then you will see where you are.
Still, I feel that for MF channels it is beneficial for do with a good DHT output
stage instead of 6C33C and perhaps it is a good idea to use DHT driver as well.
S...
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So I am currently working towards this concept for my Macondo (see below) and I have just the Upperbass horns left to turn and prep. I am thinking about how to best integrate the DSET with Macondo and have come up with something like this… Perha...
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I am making steady progress putting together my DSET amplifiers. Life and work gets in the way but I am chipping away at it, taking my time, not rushing, enjoying it. Wow, it is a lot of work and an enormous task for my first complete amplifier bui...
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Hi Romy,Just thinking out loud here, but I have been listening to my mono DSET/Macondo for quite a while now and recently changed back to my old acoustic system so that I could poke around in the DSET innards for a little while. The old system (in s...
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It was not so long ago that the Super Milq was a twinkle in Romy's eye,and now it has come to the point he is a strong proponent of DSET (not to be confused with DH-SET). I am always a big believer in the power of topology. I was thinking about...
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[quote user="el`Ol"]Why not more semi-active speakers with high-sensitivity mid/treble and transistor-powered bass? [/quote]… and it is very important do not overlook this difference. Multiamping is fine but is it severely suffer in case of different...
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Romy,
Sorry for taking so long to get back to you… (this being the summer time in a Latin country, I still have no internet connection at the new place).
Quote from Romy “If your lower bass channels run from 40Hz and down then the PS, size of the c...
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Ok, you have definitely earned a Cohiba break!
While reading of your progress on the 6 channel amp, I was thinking ahead, and how I might approach the building of such amps as separate projects for each frequency band (separated physically as well...
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[quote user="N-set"]… I think that there is something more interesting going on here: what you have hereis rather a rare instance of an intelligent bypassing… [/quote]
Yes, it is highly intelligent and looks like it is highly effective sonically. It...
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I made experiments running HF filaments from dedicated Hammond 6.3V transformer vs. lifting ground on my 6.3V IDH filaments. I did not listen Sound but rather measure the noise – the result was identical. In the best cases I was able to get 0.63m...
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Ok, here is what I end up with. This version is something that I am planning to give some listening, the fist listening as I this filtered down the intellectuals reasons do not listen it. The amp is fully operational, bit made as a test amp inside th...
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[quote user="Romy the Cat"] Spending some time listening carefully my new setup after fine-calibration I recognize some inaccuracies in my previous comments and some mistakes of my original objectives. Here are some observations I would like to m...
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Firstly, thank you to Montepilot, Paul S, KLegind, zanon and Romy for all your thoughts on the Zu Druids. I recently tried high-passing the Druids at various frequencies and using a pair of Wilson-Benesch Chimeras and various amps for LF and uppe...
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With all hugely exuberant welcoming and DSET and multi-way acoustic system approach I have to admit that it is a enormous pain in ass to maintain the system.
Two weeks ago I begin detect that my left channel somewhere in upper MF began to throw some...
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It was not so long ago that the Super Milq was a twinkle in Romy's eye,and now it has come to the point he is a strong proponent of DSET (not to be confused with DH-SET). I am always a big believer in the power of topology. I was thinking about...
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The “Enjoy His Music” published the old celebrated by many DIYers Herb Reichert’s article about his 300B amp ideas.
http://www.enjoythemusic.com/diy/0709/flesh_blood.htm
I read it before but reading it now, after a few years again...
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Hi Romy,Just thinking out loud here, but I have been listening to my mono DSET/Macondo for quite a while now and recently changed back to my old acoustic system so that I could poke around in the DSET innards for a little while. The old system (in s...
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[quote user="drdna"] You are correct, though I believe the subwoofer covers only below 40 hz. [/quote] So??? [quote user="drdna"] This is coming from the same person who has built a 6-channel DSET? Anyway, it was more a thought about optimizing the o...
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[quote user="Teflon"]I'm interested in bi-amping so you have my interest - if you say a SET has a 'topological limitation' what is the ridiculously simple change needed to make it good for LF operation ?I was previously thinking about using triodes i...
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[quote user="drdna"] And the explorations that led you from the original Melquiades to this current set-up are well-documented over a period on months. Still, it might be instructive (to me at least) to hear concisely stated your dissatisfactio...
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I designed up a steel chassis for both the Fullrange and DSET Melquiades. Here they are screwed together for the first time. Then I have made sure all the cutting and drilling has been in the correct places by quickly putting the parts in their pla...
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Well, probably not up in smoke, but it is just not functional any more. I was away for a few days and came back to my room to find the Placette refusing to change volume or select a source input, so something is amiss. Perhaps something has been am...
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[quote user="el`Ol"]Why not more semi-active speakers with high-sensitivity mid/treble and transistor-powered bass? [/quote]… and it is very important do not overlook this difference. Multiamping is fine but is it severely suffer in case of different...
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Finally, it has happened. Sound. Two weeks ago I had a couple of mates help me carry up and install the first DSET on its pedestal on the horn stack. It was quite a bit of effort and three were definitely required for the heavy but delicate operat...
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