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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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On Friday a guy that I invited long time ago shut me email informing that he should be in Boston this weekend. I have just one freshly cooked 6-ways Super Milq and just right functional Macondo channel. I did not wan to brash him off and I connec...
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Ok, the 6-channels super Melquiades is done, closed up and I made a few pictures of the beast. I have to admit that I do like how it amps turn out to be packaging-wise: the layout turned out to be very good for 3 channels as well and for 6-chennals. ...
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I turned the thing on lately. Although the channels do not sound right at this point but there are some moments that I do live very much. I like the mechanical noise that this version of Milq radiates.
The former version had still chassis on PS side...
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I was kind of frustrated with some strange high frequency roll off at my HF and Injection channels. It should not happen. The 9H OPT LL1627 in Injection channels should be good up to 23kHz according to my former tests with a full range Milq and the T...
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The new Super Milq’s input with combined filer and bias resistors.
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Ok, now it is done and it is official as I see nothing available for conceptual improvement in the crossover circuit. Interestingly this version offers the most interesting sound as well, since the circus was tune for sound, not vise-versa, it is wha...
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To my surprise it is going along not painful. I do it a half hour per day – only when I am in a mood - and I do not feel abusive with it at all. At this point the half of the bias chain of the third of the filters have installed. If it go further so ...
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It is kind of done for one channel. It does not look sexy by I care less about it at this point as the PS sits at the bottom shelf of my double-amp stand and practically is invisible. The layout is not perfect as I did not want to drill a lot of new ...
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Eventually the right channel of the last revision of the 6-Channel Super Melquiades is complete. It has the new dedicated power supplies for single-stage amplifiers, the 600V Schottky rectification for 200V line and 1200V Schottky for 400V lines, the...
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First major audio observation that I made is that my Super Melquiades should be revised. After a year and a half of using the amp I came across to some conclusions that outlined the prospective changes in my DSET.
1) The phase inverters after...
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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 the last few months I was tal...
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The 3-channel version of the Melquiades on steroids - the Super Melquiades SET is over. There are still some minor adjustments doing on but they mostly take place outside of the Melquiades. I think in a week or two the amps with the mated speakers wi...
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To whoever loony people who still observe me battle with Vitavox S2 driver I would like to inform abbot my latest events.
Believe me or not but with the Super Melquiades dedicated HF channel I find the internal courage to try the older diaphragms. ...
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Here is the next more accurate and less abstract version of the new amps input section. The different functioning resistors are not equated to a common denominator bit it is how it will be build initially, during the calibration and testing and I do ...
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[quote user="Romy the Cat"] Currently I have Jack Elliano’s made 450mA, large, single section LF transformer that begin to roll somewhere around 800Hz. The transformer ha s a lot of core mass and at full Melquiades’ LF power (~20W) it begins to clip ...
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Ok, now it looks like the amp is operational. I was listing today the individual channels (without tweeter – the 175:1 transformer is coming). The channels do sound very promising… here are some sweeps with the filter on. All channels use well warns ...
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I did not do anything for a while on this amp but it looks as now I have almost completed the first amp in it’s final, not prototype version. There are just a few minor things left but the core is already there. All 6 channels are fully flitted, test...
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Ok, here is the final frequency response for each Super Milq channel. The souse was Denon CD player that rolls off a little atop. I did not measure the tweeter as I have no tweeters transformer plugged in yet. All secondary in amp are grounded. The m...
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I was slowing mingling the conversion of the power supplied of my second Super Milq from 3 channels into 6 channels and I ask myself: is anything in that amp is made in the way that would allow me to close it up and never review it. Sure if I move in...
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OK, I have conceptualized what I need for the tweeter amp. It will be MilqEZ – the same Milq one with 6C19P at output. I will use the Super Melquiades power supplies but the HF channels will host own last caps of the filters and own bias of the both ...
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Last night I push the pedal on my left channel Milq and it was
no invents. I tested the voltage and it was up, the fuses are also in place and
operational. So, I presume that my left Milq is sick, probably something in PS section.
That sucks at so...
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Spent quite a few hours trying to rebuild the Super Milq new power supplies. Faced bunch of the problems and recognized that the entire ceremony of converting off my Super Milq intro 6 or 7 channels amp we'll be much-much more painful then I initiall...
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OK, I’m getting somewhere. This thins bee quite heavy and quite uncomfortable to handle by heands… Still, it far from end....
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The first time the new amp is semi-operational. Still it is a loooooong way to go… to tune, to measure and to calibrate everything….
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After many hours and much efforts I have connected the new 6-channels Super Milq to my 6-channels Macondo, with omission of tweeters for now. I made some measurements and initial adjustments and then was trying to listen it briefly. I did not l...
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Last nigh I spend a couple hours to listening this thing. Since the amp is done in design phase and the final parts are still in order I can not finish it and close up – it kind of frustrating… Still, it gives opportunities to listen it knowing that ...
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Ok, I took it one notch further and moved the crossover in Fundamentals Channel (D) form speaker level to line level – very very very nice result. Below is the updated circuit and the response of the Fundamentals Channel ...
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Ok, I completely disassembled one of the Super Milqs and physically injected extra 3 channels. It looks like everything is all right real-estate wise, still I would prefer of course to have more space….
As now the amp is completely shattered ...
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If you read the very important post: http://www.GoodSoundClub.com/TreeItem.aspx?PostID=5255 then might understand that it lead to a painful research on the subject. I have ton of data now and many experiments done. If I have time I will upload s...
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