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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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Hi,[quote user="Romy the Cat"]This subject of digital crossovers became quite popular during last few years and many audio-people give up and go for a simplicity and painlessness of digital crossovering.[/quote]Well, digital X-Overs would appear to o...
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Mani, the neutral wire is meant to be "the" system ground, with zero potential, so it should not have any "input". It is known, however, that many factors conspire to contaminate ground wires (including the neutral wire) with electrical noises, and ...
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Hello Mani,I am using a 10KW balanced transformer on my system with dedicated earth just as you are, I use two 110V power lines to enter making it 220 volts on the primary and get 110 volts on the secondary with the earth. I have a rod in the garden...
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[quote user="Romy the Cat"]
Any LF acoustic system has two SPL levels: the SPL of pressure and the SPL of tone.[/quote]Ahhh! Very good Romy. I don't recall you talking about Pressure and Tone SPL before. The tapped horn can be designed any 3 ways....
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In my situation there is a missing link between my single ended phono stage and my balanced active crossover. Between them is 35ft. of interconnect. The missing link is indicated with "?" in the sketch.What I need is one single-ended input, some atte...
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Mani, congratulations with Pacific.
You will not have problems to drive with balanced Pacific your single-ended amp. Juts buy a good quality XLR to RCA adapter or order XLR to RCA cable and you will be set. You do not even need to care about t...
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What is the most interesting is how all those completely lucid commentaries about Dannoy are off the mark in my view. Do not get me wrong, there is nothing expressed here is bad but all it describes how to get a “balanced” sound Dannoy configuratio...
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I had yesterday our technician to make a first pass over the Mason and now it is eventually is in tune. It is become playable I have discovered a interring challenge. As I said before the acoustic setting for the piano is perfect in out listening roo...
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[quote user="oxric"] Thanks for sharing your experience, quite damning, of Equi=Tech transformers and balanced power solutions. I cannot hide my disappointment as I felt that the theory would suggest balanced power offers a high level of protection f...
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[quote user="Romy"]...what is your view about grounding of secondary in output transformer? I keep secondary lifted in the Super Melq as I have in there 6 phase switching relays...[/quote]Not sure I understand. You run the speakers floating fro...
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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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Do we finally understand what part of the Bad Electricity problems is [broadband] noise and what part is related to "waveform" issues, such as phase? And do we understand how attempts to deal with either one of these issues might affect the othe...
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Hi Romy[quote user="Romy the Cat"]
... I decided to listen my native feline instincts and go with them. So, decided to buy a Lavry’s Gold AD122. ....Now, the biggest problem remains what digital I/O PC interface to use after the Lavry’s digital...
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Fascinating info. My first post here though been a lurker for years. @Amir I assume the info you posted above about PSU changes come from Silvio? It's quite fascinating so if there's any further info published I'd appreciate a link to it.
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Here is a VERY interesting paper http://www.anstendig.org/Stereo.htmlSTEREO: A MISUNDERSTANDINGTHE THEORY, SOUND-SYSTEMS, AND PROBLEMS OF HEARINGThere is a common misconception that the addition of stereophonic sound-reproduction was the necessary, c...
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Personally i'm not very big fan of single-stage amplifiers, cause i always found sound of two-stage SE much more balanced. But maybe that's just my dumb speakers, who knows...Would be nice to hear about your experience....
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Every professional microphone on the planet is symmetrical and needs a transformer or symmetrical amp to work properly. Do we have an issue right up front? I am not sure why symmetry should be the scape goat here. Granted, nonlinearities in the trans...
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I did not have time to read the articles carefully, but:"The IDAT’s D/A conversion stage is also unique.""In the IDAT, two DACs per channel are used for each half of the balanced data signal instead of one."...the very idea of balancing DAC's is not ...
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Just to let you know I will have an opportunity to hear one of them soon. My current player is Metronome T2i Signature which I consider the most balanced, complete and satisfying so far. It will be very interesting to compare it, rest assured I will ...
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Very interesting Amir.
I am also waiting on a Model 5, to arrive in the UK. It was ordered some months ago but I ordered a balanced version (this one will be all-balanced - two balanced inputs and balanced output) and that's tak...
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From a technological perspective, these look very interesting. Unfortunately the nearest place i could audition these is Montreal, but it looks to be worth it. Have you heard these, Romy, or are you also impressed with the price/technology ratio?
d...
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Miab, are you juts selling them of you use then as well? The reason I ask is because if you have too many of them then you might try to make one Balanced Synapses cable from two single ended. I know people tried - I do not know how successful they w...
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Yes, it does look like “wrong” but I do not think that it is an indication of a problem. The bearing would not give you the wobbling that you would be able to see with your eyes. It is also very unlikely that the platter has different high and not b...
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From Larvy Site:Features like a USB input, programmable settings, infrared remote capability, and the proprietary >PiC< Playback Image Control™ make the DA11 more than just a great sounding DA converter. In keeping with the Lavry Engineering tr...
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[quote user="PurePower"]We routinely operate our 230 volt models with two phase +/- 120 volt input.[/quote] That's interesting. I use a couple of 5KVA balanced transformers. I tried to feed my 240V PP2000 with one of them, but the output was non-symm...
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I do not think that this division on analog and digital is right. The true division should but not about type of frond end but about a type of PS. If you have any switching PS then I would isolated them in a dedicated line. The division also might ...
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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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Phono Input Impedance MM setting: 47k ohm MC setting: 47k ohm or 100 ohm Output Impedance Unbalanced: < 100 ohm Balanced: < 100 ohm per leg Input Sensitivity at 1 kHz MM: 4mV in for ...
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Welcome Sean19, Another member should correct me where I am wrong. There should be some tweeters that just start emitting in their proper frequency range and do not need a crossover. They might need a resistor so that they are volume balanced to ...
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