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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Hello Romy,I am no power expert but here are my observations on your situation.Even though a PS Audio and others create a perfect AC sine wave this does not seem to be the answer, even for low draw front end components. It seems that some type of&nbs...
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Hi Romy, I don't doubt for a moment that there are plenty of people 'who know' who will wax lyrical about the benefits of open loop eq in feedback circuits. There are people 'who know' who will tell me that valve amplifiers cannot be as good as trans...
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Besides the single driver Aporia (which I haven't heard) I don't think Silbatone has made any speakers. So they don't 'employ' GIP drivers. I think GIP is a separate Japanese company who have just been invited to participate at these German show...
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Thanks, Keith and Montepilot.
I did have my 7788-7721 phonostage with LCR filter and I always liked it, pay attention - it was 68dB gains with just two stages and with NO step-up transformer. Allnic Phono is 3 stages with step-up transformer...
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After another couple of weeks in X/O Hell, I think I at least have the notches where I want them. Yes, I added another notch filter, because the Lowther response is so ragged that using a simpler curve results in bringing down frequencies I need...
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...future subjunctive...Romy, I am not sure that the first part of your response actually addresses the first part of what I was talking about. So, I +/- repeat myself:As an extreme example, if I see a claim of "80 dB gain" for a phono stage, it is ...
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Hi Guy, [quote user="guy sergeant"]My experience with the 834p stemmed from having one at home for about a year soon after it was launched. I did try different types of ECC83 in it which did change it's balance slightly but not enough to make me like...
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Hi,[quote user="Romy the Cat"]T, thanks for educational reply. I understand what you are saying and where you are coming from but unit I try better transformer, presumably your S&B TX-102 I would not be able to correlate your observations with my...
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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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It seems ironic that the path to bringing the single-channel DSET/narrow band horn idea to market would invlove traditional marketing per se as much as the melding of evolved listening with cutting edge technology. While there is rote work...
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i do it and i did it, but as a newcomer you have to sort out all the infos...not that easy!
[quote user="Romy the Cat"](This is normal, I have written about it many times. Those large bass drivers have a lot of inductance in Voice Coil, the inductan...
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Hi Romy,Just thinking out loud here, but I have been listening to my mono DSET/Macondo for quite a while now and recently changed back to my old acoustic system so that I could poke around in the DSET innards for a little while. The old system (in s...
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[quote user="Romy the Cat"]There are no good ready to go transformer for 6C33C. Tangos are garbage. The 20 years back Tangos were OK for small tubes but Tango is long gone and whatever crap they label by Tango in fact Chinese transformers agglomerat...
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Haralanov, do not write stupid posts, you have “no experience and no knowledge” about it. Also, do not propose to look at any other speakers as looking is very a deceptive activity. There is a phenomenon of vision that called “phantom visual reality”...
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[quote user="guy sergeant"] I don't doubt for a moment that there are plenty of people 'who know' who will wax lyrical about the benefits of open loop eq in feedback circuits. There are people 'who know' who will tell me that valve amplifiers cannot ...
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Well, I decided it was time to start using some "proper" interconnects between the preamp and DSET's, ordered them and had them delivered. To date I had been using cheap interconnects from the local electronic shop (literally $6) which should be ok...
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T, thanks for educational reply. I understand what you are saying and where you are coming from but unit I try better transformer, presumably your S&B TX-102 I would not be able to correlate your observations with my, perhaps too semi-prejudicial...
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Roman,[quote user="Romy the Cat"]May I ask you, this realization of yours… dose it has any “sound”. [/quote]The one we have build which is a little different (6S45 not C3g, also tried WE 417A, 437A, TX-101 Copper not silver, AN UK Line Output Transfo...
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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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Hi!
Stefano just made me aware about this forum, so I registered. Interesting thread about LCR RIAAs, one of my favorite topics :-)
About the gain of the WE437 phono: Since Stefano wants to use external MC step ups, I designed the phon...
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[quote user="Romy the Cat"]
How difficult is it to find 437As good enough for a phonostage? For commercial applications is it a dead tube. WE might produce it again when they stated to redo the tubes but the existence of the Russian 6C45P pretty mu...
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[quote user="rowuk"]How many sources do you currently have? If you are building a phono corrector, make it for 4 volts output. If you have a PC for digital playback, there are good DACs with more than 2V output. That would leave a tuner to pimp - cer...
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I got my pair of F120A by-the-book bookshelves a few weeks ago and yes, in the beginning they were very much "compressed" sounding. Things improved a bit over time, but the low treble (which gives instruments their "color") is still recessed. So I ...
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What I assumed initially is written on the Nordost page.
"The QKOIL QK1 is a load resonating coil (LRC) which generates a passive electronic field that has a beneficial sonic effect on the AC current."
... as we should do in loudspeaker crossover...
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[quote user="Romy the Cat"]Still, I feel that methodologically it is not right
way to build a playback. [/quote]No disagreement from me on this point. This is all just a thought bubble for now. Even if I wanted to press go on this project based ...
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Ronnie,
Arranging the driver in a line array is a fierily straight forward thing. Also be advised that the arrays will less likely work across a short wall, and you need to use a long wall. Generally it is imposable to advise anything as any rooms a...
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Hi,
Only noticed this now....
> Hmmm - the whole LCR thing, I don't like the idea.
Then don't do it.
> I'll admit to having no experience of it, but in engineering terms, it just gives you a constant
> impedance filter.
Correct.
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Roman,[quote user="Romy the Cat"]Nevertheless, if that bass was truncated between the stages then the devastations are way more severe. [/quote]That may be so, however an LF response of less than -0.1db down @ 10Hz is what is normally called "ruler f...
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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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[quote user="Romy the Cat"]In my upcoming DH Milq MF DSET I will have an Innerstage transformer and output transformer. The loading of output tube has known effect to harmonics vs. transients, it is know, it is predicable and it is manageable. The In...
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