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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="Romy the Cat"]I always was “concerned” about those large high voltage triodes: 211, 845, GM70…. They kind of different… The 845 always was brutal and not elegant, 210 was elegant but not sophisticated, and the GM70 was sophisticate...
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Wow, you sure do pack it in there! I like the way you silicone the caps and other things into place. Maybe you can do the same for the bleeder resistors and wiring bundles? That is, once you are sure it is operational. Wires c...
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Wifey went on an errand today and on a hunch I fired up the system to listen to some Schubert lieder and a piano sonata.Despite a dry east wind, it was not as hot as predicted, and despite schools in session, etc., the electricity was very good. ...
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Romy, I was asking questions here, and @ RMAF because I'm trying to gather enough information to build compression drivers. At my day job I am a prototype machinist at Los Alamos National Lab. I don't plan on going into production, j...
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Without completely understanding the post, I listened to all the samples (which by the way, will play immediately without doing anything if you have a mac...oops!). I first ran the files through my main system (there is a laptop + DAC associated with...
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[quote user="drdna"] Actually, I believe they can be tailor made to your exact specifications, which at that price they should be.[/quote]
It is not a thread about cup but I still….
This is always an interesting question to me – where is the thres...
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Roman,> Any IC-base RIAA corrector should cost $30, with no expiations.Now now.... My "Analogue Addicts Phono Stage" is Op-Amp based and requires at current OEM bugetary pricing in 1000pc lots of $12.25 each. Add Tinfoil & Polystyrene Capacito...
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Maybe if you didn't try to pull the caps down so fast. Why the hurry? Maybe a 500 ohm or 5k ohm resistor would be a more kind bleeder. I think the peak current spike is not such a good thing for the capacitor. You are also at ...
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Yep, it looks, like very close to “it” design-wise. http://www.studiomaudio.info/loftinwhite.htmlIn the way this amp is one of the manifestations of Loftin-White DC-coupled but it has some own things. The driver stage is the Melquiades Tube to k...
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Romy,do not spit in my eyes as I do have solid state PassLabs 350.5 but even with this 50W Class A amp (push pull) it is exactly the same problem if it is switched off completely even for a short while. I can take ~ 2 - 3 days to be back to norma...
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Roman, the reformation of capacitors is an unswer in many cases. Those, who use BG - have to spend approximatly the same time to bring the system to the proper sound, but your mind is not SO corrupted. You use relatively big tanks o...
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Oh please Romy:What advantage does multichannel B&W owner have over off the shelf single driver (like Druid or whatever)??The multichannel B&W owner cannot alter level of each channel by 1db. He cannot slide the crossover up or down 20 Hz, no...
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[quote user="joaco"]Last year while I was in the search for my actual DAC I came across lossless site ... and now I rememeber on their dac they are using batteries as a an alternative mode to ac . Also I found very interesting the concept that they u...
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Well, one way or another I will fix my B2 amp. I think while I have no bass amp it would be a good idea to try other amps for ULF: powerful tube amps or even class D amps. I do not have inspiration to dry Class D amps and I have no powerful tube amp...
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Hi Paul,My question was of cause about my phonostage based on EAR834p and "End Of Live" modification with air capacitors and LCLC + 0A2 power supply.A couple weeks before I increase the second stage ECC83 cathode capacitor value to 43400uF (Kaisei no...
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Hi Romy,I am calculating crossover scenarios for the HF Channel (Channel F) and am hoping that you can remember a reasoning for using a 20K LPad instead of a larger value such as 30K or even 50K? As the larger impedance is used the value of the capa...
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Romy, I understand that at some stage you trialled a number of different capacitors and settled upon Electrocube 950B/D not necessarily for the Melquiades but perhaps for some other project. I was wondering if you ever experimented with different co...
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Romy, I have futzed around with caps more than I should have, mostly because they so obviously affect the sound, no matter where they are in the circuit. In general, it seems like the best bet is to keep the values as small as possible, an...
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I made some power measurement of the Super Milq, to my surprise it is not so much hungry east as I expected. During the startup, what the B+ begins to charge the large capacitors the amp sucks 8,6A. When the amps is fully charge, heated and in it cru...
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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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My objectives when I wrote my initial post were not to knock the Herb Reichert’s design ideas but to demonstrate that DSET topology make most of Reichert’s views not applicable or even irrelevant. So, my post was not against Herb but rather to advanc...
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Scott, my apologize, but issue of low-power does not have any relationship to the problems, you have described. The problems could be located in the following areas:- high output impedance of the last cascade, and amplifier in g...
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The Netherlanders Tony Gee after geting sick to fight with his stupid Fostexes and Lowthers have his run over capacitors.
http://www.humblehomemadehifi.com/Cap.htmlThe Cat...
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Hi Wellington and fellow Micro-Seiki fans,I will have to agree with your findings about the CU-180 as well. I have tried a stainless steel mat with similar results.I own two RX-5000's and cant't stress enough the rebuilding of the power supply with n...
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Measet,The bearing oil on the RX-5000 should be replaced with a good low viscosity turbine oil, Zoomspark works well. When opening the bearing you will notice there is a steel thrust plate that will have a dimple on it, you can flip around and use th...
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[quote user="Paul S"]I have reason to suspect that my beloved large Cardas couplers have continued to loose HF past the point I described as "settling".[/quote]Well, it might just be the electricity, but if you need to replace them, maybe it is time ...
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is what I have called it, and what I hear you are describing? I wonder for how long you will be OK with it. We have had this effect by using 1st order crossover with absolute minimal insertion loss, so you would now listing to uncorrected drivers in ...
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hI bRIAN, [quote user="Brian Clark"]The 834P was a revelation for me, being a circuit that I would have dismissed as "old hat" (Feedback? 12AX7 cathode follower? Do me a favour!).[/quote] Me too, but you know me, i'm mainly pragmatic. The EAR 834P is...
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Every day that I listen to my system, I thank God for Romy's perseverance with the pp2000. For the past 25 years I've fought the crappy electricity that comes to my house in the woods with everything from banks of 8 massive 2 and 3 KVA isolation tran...
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I did not follow up on the issues relating to improved performance on small smps when used on filament and DAC power supplies.Here goes:The first is that the source impedance of this type of supply is very small e.g. less than one ohm. The sp...
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