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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I do not defend Amir’s
observations and I also do not take his comments seriously. I have no idea what
he is taking about ground loop,
not sure that he has an idea BUT I do
agree that separation of power cables from
each other after the generato...
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[quote user="Wojtek"]In regular off the shelf hi-fi system , be it a total lack of LF in your speakers or the "pinch" of dome tweeters or the midrange mud. Romy like all of us throws money on the problem and he usually chooses well regarded and...
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Jp, I think what you do is wrong. The ferrites that you use on the picture are worthless as they will not be having much coupling between the cable and ferrite cores. You need to block entry to Sansui for HF noise. The noise might enter via power cab...
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can this be anything else but futile?1) If analogue the first thing be the cart, if digital the payer?2) If analogue the phono cable being the MOST important one in the whole system, and could yield some noticeable improvement.3) Has the system got a...
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This year is the first winter that I live with this new listening room. Last winter the playback was up and I still was playing with minor arrangements of my ULF channels, cable and a few other things. For many months I do pretty much nothing with my...
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Thanks all for the replies! Looks like a very risky business.Given the work involved and highly unsure effect, I'll happily skip the shielding. Your comments suggest that the high capacitance line to ground (which the shield would happily provide) is...
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[quote user="rowuk"]The whole idea of an earth wire is a path to ground if something fails in the unit. In most countries the (metal) case is attached to this pin on the power connector.It is incredibly stupid (and in many countries illegal) to lift ...
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Almost all such hum finds its way into your audio signal path through a ground loop, although it is technically possible for AC 50/60 cycle hum to enter from adjacent unshielded power cables. Make sure the AC cable to the phono is well shielded and i...
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Yes I do use them for both my Bidat and battery power Idat/M both reworked by John (BTW Idat/M has some performing benefits over the Bidat in my experience). The Synapse cable does have the special qualities mentioned in this thread.I had considered ...
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[quote user="manisandher"] Amir wrote:Please share more information about your PC.Amir, I have two PCs for purely audio purposes - one for my main listening room and one for my home office. The former was built commercially by Phasure (http://www.pha...
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Tweeters are a real mistery. Some should sound great and they dont, and some never will.I think you do need a lot of dynamics even at 10khz in order to get those sparkling highs that really jump out like the real cymbals and other crashing metals! O...
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"Jim Hagerman that is posting at this site has an absolutely ridicules devise...The
ridicules in this devise its amassing effectiveness and absolutely
insulting price. In fact over my entire audio life I hardly had so many
benefits for $50 I spent...
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Thanks for this one Romy, very interesting...it sorta ties together several things that I have been thinking about lately. I guess I am lucky that the Bass Cannons can be run off 9w from the DSET bottom channel and from memory I get about 115dB at 1...
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The station that I most listen to is 105.9 MHz that broadcasts from one location 50 miles away at 100kW power and that is detected by 2 FM aerials mounted as a parallel array with rotator and ~ 40 feet of coaxial cable to the TU-X1. T...
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Floyd,
Regardless your preamp uses output coupling cap you would still need a positive supply. Positive supply compensates the negative DC voltage at the amp’s input. Theoretically if you do not connect or disconnect the cable between your preamp an...
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Here is the general specification for the parts that I used. The selection of the parts implies some liberty of course. It will be your amp after all, not mine - do whatever you wish. In some case when I feel that requirement is critical I will stres...
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[quote user="cb"] Also i stick a 30k resistor in R3 and the results are very good. [/quote]R3 is Milq’s loading resistor and it hardly to do anything with amp itself. Milq has own input loading is floating on the bias chains and it has a ...
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I was so glad to stumble on to this site. It's amazing!I've been a Bidat owner since 1995 and I had the latest mods done by John Wright a year ago. Romy, it takes several months for those blackgate caps to fully calm down, but you are in for a t...
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I not juts actively hate this configuration but also actively abhor the rational that made people go for this direction.
The Morons use horrible power amplifiers and sonically impotent speakers and suffer from harsh and cruel Sound. Instead of tras...
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Romy, I probably have it wrong, but this "negative impedance" scheme sounds a lot like "Servo". If it's anything like this, then no, i have never seen this applied to mid-bass, but only to "subs". But how would a very small tube amp "control" a mot...
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on Friday I will test CEC TL0X with MAcbook Pro/Berkeley USB to SPDIF Converter.The Berkeley Alpha USB use the Wavelength Streamlength asynchronous code. Mr.Gordon Rankin programmed these codes and sold the patent to some company like Ayre, Berkeley,...
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[quote user="steverino"] I'm not surprised at your disappointing results as I have experienced the same with a variety of power filtration or generating devices. Your surmise is correct that such devices work much more easily with AV equipment or com...
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[quote user="Romy the Cat"]Last night I have an interesting “event”. I accidently unplugged the PP from power line and did not know about it. Also, that was very interesting: when I put the power cable back to power line then the first minutes the PP...
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[quote user="George"] Recently I had a brainstorm (very small) and bounced it off Guy (who is a terrific person to talk to) and he thought it would be worth trying. Since I was driving such a relatively long length of RCA cable (thus subject to noise...
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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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Dominic,
I personally do not believe into nether non-powered preamps nor into autoformers volume controls. In my world as soon a any voltage dropper begin to drive any cable it calls trouble. A volume radiating voltage divider or transformer should ...
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I talked for a couple of hours today with a local Solar Power technician, I sort of told him all the gear I have that would need to run on batteries and we got a shaky number; from that number he started calculating a bunch of panels and batteries a...
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This evening I took myself to performing additional tests with the entire system completely disconnected from utility ground. Following Romy's considerations about different grounds, and Richard's absolute belief in the capacity of a properly working...
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Romy,
I've been storing all my digital music on a computer located fairly far
from the audio system for quite some time now. You've brought up a few
issues that are worth discussing.
1) Storing the digital stream - I assume you mean either (...
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Hi Roman, hi all... intriguing post and interesting questions, as I've been for about 20 years a triode and, before, a tube user and a glowing-in-the-dark maniac.My experience...I purchased - years ago - an Hiraga 20W which I used as a bass enclosure...
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