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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hello, would it be possible for us to see the diagrams and schematics behind the Zarathustra II in the same spirit as the Melquiades was conceived, noting that the best of ideas are formed with the purest of sentiments?[quote]It is Dima’s and my stro...
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I defy anyone to "hear" the relays in my TVC/attenuator. In any case, who wants to get up to change volume, or balance, or phase, or to mute the system? Does anyone remember that Lamm started out by offering VR meters on his amp, but he deleted them ...
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Thanks Romy. Given the power of 801A preamp, this correction is not necessary. I simply increase the volume compared to my clone of 834 RIAA or other sources and the autoformer at the output is still in the attenuation mode, providing increased outpu...
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Hi,
[quote user="dazzdax"]Hi Romy and other fellow audiophiles, what is your experience with passive transformer based preamps?[/quote]I have yet to find anything better. If using active try using a TVC as volume control, it takes the active preamp ...
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Thanks, Bill. The system you describe sounds like my brother''s old home theater surround sound, which did a nice job with 5.1 DVDs, for concerts, opera, and musical theater. I presently use only a turntable or CD/DAC source with my hi-fi, in stereo ...
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Hi,[quote user="Romy the Cat"]All that I need was some kind of vacuum tube buffer that would have no-gain of a very low gain and that would be sonically completely transparent.[/quote]Completely transparent is very hard to do. Try the following:6AS7 ...
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Hi,[quote user="morricab"]Hmmm....I guess I can't really see that unless you are enjoying a particular coloration you are getting from the TVC.[/quote] Nope. On this you are wrong. Based on direct bypass tests the TVC's I USE (that is the specif...
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As with everything audio, one has to put it in context in order to evaluate it. In my case, the ML2s have a reasonably "high" and stable input impedance, the TAP TVC has a reasonably low (and totally stable) output impdance, and my cable runs are sh...
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Well, there's noise, attenuation and impedance to reckon with, at a minimum.The TAP TVC I use claims that the step circuitry itself is "out of the signal path". OK, fine; but so what? Doesn't the voltage have to "cross" something, somewhere, at som...
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In this cable thread there are some ideas about materials and construction of cables. My most recent attempt for good-sounding shielded phono cables are from Bud Purvine, using his specialty Litz wire construction, Vampire 800C connectors, and unblea...
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Since I occasionally listen To K &K rakk dac unit and like it quite a bit I was looking at their phono stage for a long time. This phono stage is a little scaled down (in PSU) version of ART Audio Vinyl One unit which is very well regarded. Kevin...
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You may remember I also use transformer shunting for attenuation, in my case the taps are selected by "communications" shunts/relays. My output is quite low R, but variable, and only the transformers for isolation (no "active buffer". I was wonderin...
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Yes, the "tape (or "monitor") loop" is where I (and everyone else...) always put them.Why not ask Guy how he would approach it, maybe get one-stop shopping and probably the best results, too, for both the "loop" and the "box".Would "passive" curves m...
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I also got tired of reading all the DIY posts on the S&B 102. And yes, I have done the numbers, and it would be possible to adversly affect bass with high impedance feeds and/or long, bad cables feeding this unit, coupled to ...
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I had my best-to-date listening sessions this year, but still 2008 has been a mixed bag for me. I did get pretty much what I was aiming for, or rather I did on those occasions when the electricity happened to be decent....
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I am somewhat familiar with the dact: I used it in non controlled manner but familiar environment; it was assembled by someone else who also provided the necessary power supply; it was in two chassis about 15x15x~30 cm each (one for ps), so the equal...
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It's quite a marvel from what I can tell now. The overall sound is somewhat on the darker side but the preamp is still breaking in (although I gave it 30h benchtop burn in with the frybaby track). I also suppose it reveals the Dannoy and the room int...
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I am not sure I follow the TV analogy...I think that the best course where any sort of voltage divider/attenuator is concerned is to do it without messing up the audible results, of course, but also to keep it as "neutral", "transparant" an...
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It has been 1 year since I started working with the ML2s with all new tubes installed. The ML2s have been, by far, the biggest step I have taken in hi-fi in 45 years, and the "upgrades" I have done since the ML2s have necessarily been in a...
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In this exalted company its probably not up to much but I've not heard anything else demo-ed that makes me want to change. :)Front end: Vista laptop with XXHighend software (best sounding bargain in Hi Fi). Fireface 400 external soundcardDAC/Pre amp:...
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Apparently it still happens: good electricity during the day. Wifey went to the fair with a granddaughter, so I took full advantage! If forced to guess why the electricity was good, I'd guess that the nearby school is out, kids are visiting relativ...
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Hi Romy,The thing is.. Mr Schroeder is making a living and as such (being someone who needs to make a living in order to pay for stuff), he may from time to time have to associate himself with people that will facilitate this ability to help him pay ...
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N-set, I've never tried to make a "silver path". I have thought about Ag arm wire but I have not tried it. My cartridge coil and tonearm both use "high-purity" Cu wire, and the Cu arm wire feeds directly to the Ag wound SUT, which I use not because...
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Paul, 100% agreed on the real world test vs all other mental exercises!!!Not sure on what do you mean by the "follower"?Yes, I need only 2 stages, perhaps TVC at the input. I'll even have a bit too much gain, if I'm correct.Romy style bias on 6E5P an...
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Hi, WojtekI get lots of PM from readers of this site; it should work. Try again, and be careful with the spelling, etc. Though I can easily upload pictures to GSC Image Gallery, I can't seem to get them from the Gallery to the Board. Perhaps they ...
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My a-musical woes, mentioned briefly above, were traced to the ML2s' fading drivers. This report is written after the 6N6Ps were repalced. As it turns out, the TAP did not figure into the problems, and minor system changes do not&nbs...
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Allo,
Actually, Dave makes it perfectly clear. Take a look at the forum and FAQ at www.intactaudio.comHe puts a lot of effort in making sure the TVC is suited for the system in mind - there are custom options for those (including higher inducta...
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Hi,[quote user="morricab"]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 ...
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Hi,[quote user="dazzdax"]Thx for this well written and highly educational piece Thorsten! It appears that Romy is not very fond of the Audio Consulting transformers, could you give your opinion regarding those? What is your opinion regarding the use ...
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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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