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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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I have been surprised that you have not already pursued the Zarathustra for your multi-driver, sealed LF. From your early descriptions of both, this seemed like a natural pairing and the most likely way to go, to keep the drivers "off the ...
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Maybe you already said it and I am just too tired to follow, but does the APS do OK with "component interaction"? This has been another problem for me, where the thing does alright with one front end component but gets worse with two or more, a...
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i checked out this product from your link(thanks).for digital inputs they show aes,spdif,toslink and bada,which i understand is for use with the rr hrx 24/176?.also there is no clear indication that the attenuation is achieved in the digital domain.t...
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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 to the active unit, wh...
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...and it is a neat 1.5VRMS with zero attenuation. So with my -6dB it puts out 0.75VRMS, so not quite as bad as I thought. I will have to do some listening to try and determine whether -6dB is needed or if I can get away with less attenuation (zero...
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Jessie, I just wanted to say that I make my own shorting jacks from the worst possible plastic Radio Shack RCA plugs and small, cheap (1/2 Watt) 100 Ohm resistors, which I solder across the +/- RCA plug connection points and then ...
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Nope I’m not familiar with Octave Research OR1. I heard about Andy Rapapport but I never heard or have seen his amps. My thinking about all of this has littler rational and even less experience. I would never think about SS but the phenomenal success...
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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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R,Please excuse me if this is straying from the subject... feel free to move.Anyway, I was in NYC until Wednesday evening, and I assume I know what is motivating you to abandon Macondo/Melquiades in the hot summer months... what I don't understand is...
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Guy, I am not sure that “all audio components would ideally be transparent” as most of the audio components perform own actions: gain change or different type of conversions. Preamp, in contrary, mostly performs no actions or if it is in unity gain i...
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Once I've assumed my speakers system into this house won't ever be able to deliver what I wish to accomplish, I have kind of downgraded my exigences and I'm more and more listening to headphones. For the last few months I've been trying different hea...
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I'm sorry to read that. It could be possible that it's a transparent HP amp if using high impedance phones like HD600, but then it'd be of no use to me, since the phones I'm liking more lately, which I'd like to know how far can go with some fine-tun...
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Last couple days I was playing with my new tape looped Placette, riming Pacific from Tape Rec output. How little a Moron need to be happy!!! Even I still have some technical issuers that I need to resolve using Pacific in and out of the tape loop but...
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Something fun to think about is that the length of this sort of cable can change the sound, due to internal "reflections", this sort of thing. I've read a lot about it, as it affects the "communications industry", and laboratories, and it gives me he...
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Paul,My current active crossover is a DSP unit which likely has low enough input impedance and single ended inputs. I added BAL inputs by using input transformers. By no means do I want to use this combination as a representation of my crossover! I i...
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Much clearer with the drawings; thanks again, Romy. So, if I listen to my old jazz LPs recorded live at The Village Gate with the DSP-Z9 on that setting I would be getting a double dose of ambience, along with the extra stuff the recording engineers ...
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So, it has been a while. I have DSET/Macondo in stereo now although there is still some work to do to finish it and tune it to the room. As discussed earlier in this thread I need a preamp with gain and the Placette is just not cutting it for me (n...
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Very interesting.Romy, this one looks "better", but the scope traces and noise specs you cite still make me wonder if APS actually have static design/QC criteria, because it looks like they they just work on something for a while, then start sel...
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Hm you are true in the “terra incognita” territory as far as I concern. The preamps are mystery to me. All my attempts to make any decently sounding preamp or even buffer failed. To me Placette was truly God sent and if I got burned that I am looking...
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Well, probably not up in smoke, but it is just not functional any more. I was away for a few days and came back to my room to find the Placette refusing to change volume or select a source input, so something is amiss. Perhaps something has been am...
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This morning we all:
Amy, kids, nanny, cats were watching Schleswig-Holstein
festival from 2000 where Gunter Wand was leading his North German Radio Symphony Orchestra
with Bruckner 8. The kind were playing
with my laser rangemeter, women wer...
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[quote user="Brian Clark"] Whereas I do. deParavicini's worked on designs in Japan over several years and became familiar with the research going on there in the Seventies which culminated in identifying the HD decay-spectrum as a key indicator...
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As a weekend-only listener, it can take me eons to break in some of my most stubborn components. In the case of the K&K, things seem to have reached +/- tonic equalibrium.I may have have mentioned it in passing, but at some point ...
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There
are some commercial preamps that have sub 10R output: Karana, Quicksilver,
Rogueaudio and many others. Some of them will ship the units to you to try. It
might be good to experiment with them. To have you local guy who will work with
you is...
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Good points. Romy, you can throw as much money at this problem as you like but you need to face the reality that some of your gear is going to get trashed in a move. If I were you, would make a quick list of the stuff that needs to be moved, noting t...
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Hi Jarek,Apologies for missing your post.To answer your questions:(1) Yes and no. I've bundled the preamp into its new chassis (that I made from scratch) and it does not sound as good as before. There is a grounding problem with the new installatio...
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Anthony
Do I remember that a big part of Romy's choice for a pre-amp was based on the specific needs of his DSET Milq, with it's inter-stage X/Os? And do I remember the Placette Active Pre-amp has consistent, fully buffered 10R out?...
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On any USA electrical wiring system, ALL circuits are referenced to and mechanically connected directly to a common ground at all times via the "neutral" wire, which ultimately connects to the grounded bus in the service box. And all UL electronics a...
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In the past you've referred to current loading in the context of cable length. I recently experienced this when I experimented with moving my amps. I needed to increase the IC length from 1 meter to 3 meters. The only IC I had at that length was an o...
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