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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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There are a few manufacturers out there, Minus-K, Halcyonics, Vibraplane...The Vibraplane is a good unit for the money, I have no problems with it and it does the job the way it should.Those Vibration units work different from construction and are ve...
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Well, I do have 3 channels of DSEP. Dedicated Single Ended Pentode: one channel (bass/mid 30-500 Hz) with a 307A DH pentode feeding two wonderful Fane neodymium Colossus 12" - one from FS to 150 Hz and the second from FS to 500 Hz. OPT with a lot of ...
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My room, is 16 to 17 feet wide, 27 to 28 feet long by 12 to 14 feet high with all walls splayed, with a combination of absorption and diffusion on the walls. All electronics are fed electricity by three pure power units originally recommended by Rom...
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I guess I have found a more or less usable new configuration for ULF channel. It is 28Hz, second order, with slightly raised ULF on the transition slope. It sounds quite good. Well, I am not supposed to say this. It doesn’t sound good but it sound pr...
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That was the 4 way system designed by John Sheerin using GOTO drivers on my request. The tweeter is GOTO 160 with S3000 horn xover at 5kHz. The high mid is GOTO SG370DX with S600 horn xover at 1kHz-5kHz. The low mid is GOTO 505TT with S150 hor...
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[quote user="Romy the Cat"]
Stitch, narrative is very interesting. I never had new Meitner’s DACs. I hear it countless time and each time it was very bad sound but it was always was in context of other brainless people sound and I do not know if ...
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[quote user="Stitch"] Well, I made an interesting observation by accident. I didn't know those Emmlab unit (later I read that Mr. Terrific [Tin] made the distribution in USA, but later he switched to something else, which is even more ultra terrific....
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Hi,
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 I noted (if not elimi...
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actually I agree with Romy, to a degree.... If the amplifier is a push pull device, using my output and input splitter devices of course, then an interstage transformer is a much better choice than rc coupling. Using transformers designed to the crit...
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[quote user="miab"]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 buz...
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Hi,[quote user="morricab"]You may be right. It would perhaps be worthwhile to look into "better" transformers but I am not sure that an advantage can be found over just going RCA to XLR adaptor into the balanced inputs and thereby bypassing the...
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Preamplifiers: keys to mystery – or…. how a preamp might be not only a load-driving gadget.
Years after years the preamplifiers are being a “terra incognito” of audio people. I admit that preamps are a subject of my persistent curiosity. I was alway...
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[quote user="Romy"] I see a problem. Sine you have 8 meters interconnects I presume that it a relatively large room with speakers positioned relatively far. This way your common remote control will drive two Placette passive units located a few meter...
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Hi Romy, I recently heard the smallest Cessaro and while I felt that the bass was not adequate for long term satisfaction it was also not a total disaster. From the midbass on up; however, the speaker is simply superb and one of the very best h...
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All-I'm optimizing new speakers, but the deep subject matter is a little new to me. Will this work?Using a pair of Welborne Labs DRD300B SET amps (tapped 8ohms) with a 3-way passive crossover to integrate these drivers. Here is ...
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It might not be necessarily the new wire. With analog there are other billion reasons why it might not sound as it should. Still, I personally can’t stay listening “new” wire with MC cartridges. If you recently futzed with the arm wire then you...
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[quote user="Romy the Cat"]
I never had a lot of trouble with high transconductance tubes. I use the EC8020 a lot. Stefano, you might look into this EC8020. I never seen it but just looked into the datasheet and it looks very interesting tube and i...
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Hi,[quote user="morricab"]the unit I tried (the Sonic Euphoria passive) did not live up to my hopes.[/quote]
Given my somewhat loose but existing ties with S&B and with Music First Audio I need to be careful what I am saying. But let me suggest...
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[quote user="guy sergeant"]The load lines are horrible. I can't imagine it gives a very accurate representation of what is fed into it. Maybe that's not what you are after.[/quote]It is not that I completely agree (or completely understand) the Eduar...
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Greetings,
I may be able to answer some questions regarding crossovers, multi-amping, etc. - without getting bogged down, hopefully, in metaphysical issues.
First off, I live in San Francisco, if he's inclined 'drdna' and other locals are wel...
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Hi,[quote user="morricab"]As to the best transformers souding more transparent than the best resistors, I'll believe it when I (don't?) hear it. You claim to have heard this but I most certainly haven't. [/quote] Well, the claim is no...
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[quote user="dazzdax"] 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?[/quote]Chris,
I think the terms of ultimate might be...
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I am kind surprised and I was looking for it recently and I recognize
that we do not have truly good multi-tier audio controllers. In my case, when I
incorporate multiple systems with one installation: main, pilot, reverb, video
etc, I would like ...
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[quote user="Stitch"] When you look at the data sheets, you see, that they have different Hz range with different weight. A reason why I added some more mass to my Micro which is sitting on a VP. [/quote]
Actually it is not my observation. In ...
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[quote user="rafaroxlm"]As you may know the 7788 is a high transconductance pentode which should in theory be able to give higher audio resolution than say 12AX7, 6072 tubes in tube mic pre designs. On search here the 7788 was mention...
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Perrew,
LCR is not active at all; it is the very same passive EQ as your RC? I think you a bit confused with terminology. The main logical explanation (there are many of them) is that capacitive filtration is very bad one and need to be minimi...
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Lamm introduces a new product, the LP1 Signature phonostage. Vladimir was planning to do it for a long time as his parley into “reference” series and after his from my point of view failure with LL2 phonostage.
The new LP1 Signature phonostage...
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I have just taken out of my system a First Watt F5 clone Tim Rawson amp, It was substituted by a Telefunken PP amp with 6AQ5 tubes. Let me to explain.
My system consists of 6 way horn loaded speakers. I have a round Tactrix...
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I was cleaning my old file server and found my old associations after auditioning some of High End gear... Atma-Sphere Lying in a bathroom with the bathtub filled with motor oil. Spectral Begging for any liqu...
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I am not completely thrilled with TwoGoodEars new crossover.
http://vinylsavor.blogspot.com/2012/01/making-of-line-level-crossover.html
First of all , Stephano has a preamp with tube out stage. The guy in his post says that the l...
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