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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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[quote user="RF at Ona"]Romy and friends,Reading about the sensitivity of your system to electrical power supply problems reminds me of the days when I used to make my own equipment as much for the learning experience as for the final result.One of t...
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[quote user="steverino"]The real issue is that there is no reliable repair center where statistics could be gathered on the various problems and their resolution. Romy at least can send his units back if a problem develops and PP will actually try to...
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The last nigh I tuned the playback and witnessed one of the best sound I had. My playback ordinary doe for but this time it was like last winter – it was way beyond anything ordinary. Obviously the electricity was the factor but this time I was armed...
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Power from the company grid is usually pretty decent in most respects, or at least it used to be. In the last 25 years or so the average home has seen an increasing number of devices which have switching power supplies (computers, monitors, etc...
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Why not try to build on/off the best one has gotten to date? Without some kind of a pivot, there is only drifting; plus, it's got to be nice to have a fall-back position. I'd be perfectly happy to just BUY the damned cable, believe me, if...
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ML2 is also making me hear my modified AI M3A pre-amp, not to mention I guess I could now benefit from all shielded cables. All this stuff was fine with the Wright 2A3s. Speakers: I built a version of Dick Olsher's 3-way Diamond...
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I have a PDF file of the manual if it interests you to read it, I can email it to you.
The unit weighs 80lbs, uses 6 6sn7's.
What I found a little odd was the spec for the phono is it says : MM Phono Stage Gain: 64 dB at 1 kHz
I own a Expre...
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[quote user="Paul Costa"]I have a PDF file of the manual if it interests you to read it, I can email it to you. The unit weighs 80lbs, uses 6 6sn7's. What I found a little odd was the spec for the phono is it says : MM Phono Stage Gain: 64 dB at 1 kH...
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[quote user="rogier"]It could be dirt (dust) in the aircaps..[/quote]Hm, a good point, I never consider how dust in aircaps might sound. I presume that it will be no difference as dialectic is air anyhow, it is beside the point that there. Still, the...
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Bud, yes and no. They are right and the ultra high frequencies do pass any capacitors, indictors and transformers and I am attractive to the idea of filtering somehow by using the skin effect, I fins it is VERY elegant. The problem is that I do n...
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[quote user="Romy the Cat"]Do you personally recognize the sonic impact of bad electricity in your own playback?[/quote]no, not in the sense that i assume you mean it. instead i have my own beef with bad electricity, which i suspect is different fro...
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Hey, people chill out. The guy provide just information, I do not think he makes any adjudication comments and if he would then why not. For sure the TG Lee Audio generator does look interesting. The separation of the chasses on 3 sections is very ri...
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I am bit confused with that new report. Under no circumstance I would defense Pure Power, nor anybody want my defense, but the reports I hear juts do not makes sense. If look like Pure Power grade for extra 30% or 50% power with new units, I do not r...
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[quote user="Paul S"]Perhaps the PP in the circuit raised the residual current on the neutral and/or ground line(s)? ...shielding might still help with "hum" if the shielding was grounded in a way that dropped ground resistance/residual current o...
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Thanks Romy, this seems the most practical solution. I will connect a wire to the gnd terminal at the phono inputs and see where it wants to go: power strip, PP or wall ground. I have two more questions:
-- the cable you run from...
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It was kind of strange news:
http://operafresh.blogspot.com/2011/06/new-ortofon-flagship-mc-anna-inspired.html
“This year we are very proud and honoured to introduce our new High End cartridge MC Anna, dedicated to the virtuoso op...
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[quote user="Paul S"] I do continue to wonder if a long path through an electrical storm, from the driver plate to the DHT grid, is perhaps bringing something to the sonic smorgasbord. Is this run anything special in the way of wire or shieldiin...
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[quote user="rowuk"]I am always a bit hesitant to buy into "listening descriptions". I am a musician and am confronted every day with Sound bias - attraction to what we are accustomed to, expectations being confirmed. We are creatures of habit and mo...
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[quote user="Romy the Cat"]I think that you did not exactly my version but made some modifications; I do not know/remember what they were. [/quote]CCS heating of the tubes based on LT337A, 2x0.47u+470K at the output,my filtering is a bit bulkier at ...
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On the sansui, I tried using ferrite on all the rear inputs. No change in noise level.
On the ad122, I wrapped a single large donut around the interconnects,
which are supposedly shielded, but no change in noise level. I tried
putting ferrite ...
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[quote user="Romy the Cat"]
Telstar wrote: I am convinced that the soundcard/interface is the main cause of the inferior performance of HDD vs. CD. I disagree. The main cause of the inferior performance of HDD vs. CD is not the soundcard/interfac...
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It took a LOT of time in CAD using what I had learnt from building the power supplies and then adapting it to match the requirements of the rest of the system. I have decided to mount the DSET on the horn stack and direct connect the speaker cables....
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[quote user="Romy the Cat"]I do like the assembly. I o not fine it messy at all BTW. I would like to have inputs slightly closer to the grid of the first tube..[/quote]I'd prefer to have the ground terminals much closer to the ground plane and more o...
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Romy and friends,
Reading about the sensitivity of your system to electrical power supply problems reminds me of the days when I used to make my own equipment as much for the learning experience as for the final result.
One of the mundane things I ...
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[quote user="RF at Ona"]Reading about the sensitivity of your system to electrical power supply problems reminds me of the days when I used to make my own equipment as much for the learning experience as for the final result.One of the mundane things...
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Romy wrote :
"...You have too much gain in your playback for 109dB sensitivity... I used ML2 with 109dB sensitively and L2 with 12.5dB voltage divider at ML2 and I had no annoying noise at nearfiled..."
Ok so I made a couple voltage dividers fo...
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[quote user="Romy the Cat"]I got my last PP2000, after the repair was done. My second new unit works since I got it repaired; it runs the whole playback, sounding very well and my attempts to add a second PP2000 led, as I described to worsening o...
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Hi Dima,Thanks for your comments; please forgive the chaos of what follows as I have to rush!
Agreed on all counts - the dc bias point would need adjustment and monitoring; I supposse it depends on how stable the electricity is from the wall; anothe...
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So, I give up of trying this cable construction experiment. I found some who already did a test with a similar construction and once a higher shielding material was placed it killed the cotton in oil magic, and it sounded like a "regular' shielde...
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