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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hi Romy and other fellow audiophiles, what is your experience with passive transformer based preamps? Is this the ultimate way to get a perfect variable gain? Or do you prefer to use an active preamp?Chris ...
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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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Hi Romy,
I just want to add my experience I had last year with a transformer based (actually it was an autoformer based) "passive" preamp. I thought that this could be the final solution in my preamp quest. Alas, it was not the case.&nbs...
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Roman,[quote user="Romy the Cat"]May I ask you, this realization of yours… dose it has any “sound”. [/quote]The one we have build which is a little different (6S45 not C3g, also tried WE 417A, 437A, TX-101 Copper not silver, AN UK Line Output Transfo...
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My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
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“Do you hear the people singLost in the valley of the night?It is the music of a peopleWho are climbing to the light.”Les Miserables
PREFACE
I would like do not shape this article as a review: I do not write “reviews” religiously and I have many re...
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Hi Romy,I too have for quite some time been on a quest for a truly transparent preamp. To this end I have tried some that were indeed very good such as the Silvaweld SWC 1000 that I now own and especially the Vacuumstate RTP-3d from Allen ...
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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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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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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 Romy and other fellow audiophiles, what is your experience with passive transformer based preamps? Is this the ultimate way to get a perfect variable gain? Or do you prefer to use an active preamp?Chris ...
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Well, Paul the more you happy and pleased with your transformer-attenuator the more I feel it would be interesting to see your reaction to a good active unit. A “good unit” should be the key-world in here as since you complained about active units’ n...
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Is there any abstract value to going for a preamp with a stronger output if you're using a passive xo at line level?I'd prefer to answer this question myself but i really don't have the budget to be swapping amps.How does a PLLXO interact with a non-...
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Well, if you do not have anything user 35Hz and have low sensitivety then the passive might do. Still in future, when you feel comfortable with your passive unit you might for the sake of self-education try an following experiment: Guy Hummel use to ...
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I have not seen it mentioned but I might of missed it. The PurePower absolutely demands shielded interconnects especially between preamp and amp in my experience. No matter how careful I route the cables, I was getting noise or buzzing from the speak...
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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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I dont want to hack this thread into TH, I tried them with sub-amps 150 watts and they didnt sound good, but I was using a passive preamp, when I added an active preamp things started to get better, now with 12 watts and a a lot of gain, bass is ama...
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Hi,I've just taken receipt of a Model 2 to use as a DAC in my study (using the ADC occasionally for recording live from a mic). I would like to feed the balanced XLR outputs of the Model 2 into the single-ended RCA inputs of my Berning Siegfried amp,...
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This is what you need to know - these are the equations you need for a passive line level filter:http://www.t-linespeakers.org/tech/filters/passiveHLxo.htmlYou also need to obtain the input impedance of the power amps in order to calculate RC values....
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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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KOTriode, I was not criticizing your DAC, whatever it is. I was saying that system-design-wise if your preamp was able to inflict such a dramatic change in Sound then in my view it just highlighted the problem with DAC. Take another DAC, or any comme...
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In the past there was such a concept of full-function preamplifiers that included MM and MC inputs. With time such devises die out and nowadays it is VERY difficult to find a full-function preamplifier generally and a good sounding full-function ...
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Stephano Two good ears has put a post on his site about his new 4 way passive xover.I think this is a better direction than the digital xo. The designer, Thomas, designed also the preamp and I guess he has taken into consideration the input and ...
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No matter how often I go through it I still frequently get confused and disoriented when tubes go bad. In this case I have been integrating a new (passive) pre-amp and a new (tubed) phono stage into the system, including trying various tub...
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Folks,A maker of Magnetics reading along has taken me privatly a little to task, it seems I was not clear enough with some of my statements, apologies.First, I seemingly stated that Amorphous material was "always iron", that was not my intention, amo...
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Hi!Sorry for not spotting this thread before. I'm the member of this forum and I read it from time to time. I don't know what do you mean with "he is from diyaudio.com site"? I'm member of a few formums and newsgroups but I wouldn't say that I'm from...
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I worked a little bit with those and I compared it to Vibraplane.The Minus-K are ok, they do a good job BUT they move very easily, they are very wobbly and based on that, you can only use them with center weight Turntables. And based on their size, w...
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[quote user="Paul S"]Anthony, congrats on your amazing progress! I know how hard it is to carve out time for this stuff! I see you are looking for gain from your pre-amp, which makes me wonder if you have been using the passive Placette, as opposed t...
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Yeah, and I once thought Krell was the way to go, a boy's (or a man's) dream when I saw pictures of the KSA 100 poweramp for the first time. I must admit that in 1991 I heard a demo with Krell KAS poweramps, Wilson WATT/Puppy's + Pow Wow subwoofer an...
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Romy,If you look behind the physical time alignment and start discussion about relative time alignment, that is a good start. Thing puzzle me about your view and comment of GOTO system setup that you have seen on pictures or web. How will you know ...
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