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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I used to have a few musician friends and played a little myself, but they were never really interested in audio, they did have a system but no intention to sit in the sweetspot or anything of the sort, we used to go to concerts and they would carry...
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Romy wrote:"... I can’t open PDF file..."Here's the part of the Manual that covers design features and specs (no circuit diagram available):IntroductionThe CA10 is a 10 watts per channel Class-A stereo power amplifier capable of great musicality and ...
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Hi Romy,I have a couple of theories as to why I wasn't able to get to the "VTA sweatspot" before I tried the microscope method. The first is that my "baseline" (using the ice skate tool that wally sold me) was so far off that the range I was workin...
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[quote user="Paul S"]Murat, that's a lot to ask from one driver. [/quote]1000-12 000 is 3.5 octaves.300-3000 is a bit less.[quote]In any case, if you do get useful results with the paper driver, you will have to turn right around and integrate it bac...
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Gargoyle, I don't know how much experience you already have with this stuff. I want to be clear that I have not played seriously with LF boosting horns since about 1973, and even at that time I was pretty much stuck on copying existing horns, includ...
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Well, yes... I've not been to prison in over two years! Apart from keeping me off the streets at night, the results when listening to one of the 40Hz horns were, dare I say, encouraging, though I do hesitate to say so, as the "evaluation" was carried...
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[quote user="mem916"] I miss-understood. I did not realize you were able to play my file in "natural 96K". Since I am not able to play your file in "natural 88.2" I needed to make another recording before I can really compare yours to mine since my...
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[quote user="Romy the Cat"]Did you try just for test to increase the caps value that short the plate to ground? Will it amount and the character of the noise change? [/quote]Just like one would expect: 0.1uF shorting cap gives approx 4x more ham than...
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Robin, I'm not at all certain that my new speakers are "source tolerant", because I have "taken steps" all along to "ensure" part-to-part compatibility. I have tried to "sync" my phono and CD/DAC as much as possible, and the main thing I wanted from ...
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I am using the Celestion Axi-periodic compression driver in the KLIPSCH K402 horn which I have boosted considerably when I noticed that the top one and one-half octaves were barely working when playing music so I figured WHY NOT? and it works just f...
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I might approach the problem a bit differently. Think "space efficiency" and "space effectiveness."In my travels, I have seen that a lot of Europeans and Asians live in very small spaces. Of course, the Japanese have their futon beds, which they can ...
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I am finishing us to setup my listening room and I have my PP2000 blowing up sometimes (go to protection bypass mode) when I use powerful SS amp for ULF along with Melquiades and the rest of the systems driver from one single PP2000. So, I guess I wo...
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Romy wrote :"...And with 1600 pound per channel you might forget about the DPOLS … -..."No, 1600 lbs per channel would be really serious! 1600 lbs is the total combined weight of the Left and Right channels, with frames, (the frames turned ...
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Thanks, Eduardo, very interesting. The YL 75000 has no phase plug and 70Hz with 1” trout. It look to me like a conventional diver. Which beds a question: if to reduce compression with our classic drivers, loose plug off and reduce power then can we ...
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This is something I have been at for the last few years, I have tried a few drivers, at the moment some of my favorite are the vintage RCA MI 1443, yes filed coil and some funny cone diaphragm, they are used from 500 hz to 5 khz with a Fostex T...
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[quote user="Paul S"]Romy, is it a goal to make the horn strong enough to raise one end or turn it without having it fall apart from its own weight?From your earlier descriptions, I expected to see at least one continuous piece of plywood bridging th...
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And I do not mean this as a criticism.I had for some time an "original" Music Reference RM9, which was made by another well-educated genius, Roger Modjeski. The RM9 was AB PP with adjustable bias and feedback/gain, with 6DJ8 drivers and a ...
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[quote user="Paul S"]Yes, Bud, I agree that the most common problem for the full-tilt regenerators is that they begin to exhibit various problems in direct proportion to current demands. And this seems to be true even when they are used "below capac...
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[quote user="Romy the Cat"]Debating the everlasting Leo Tolstoy’s question “How Much Land Does a Man Need?” I wondering how many and what kind PP I would need. I am debating options: to get two more PP200 or one more PP3000. I wonder if anyone used...
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Yes, the last cap of power supply much be on the side of load as it shell have a short path to ground. Without it you will have “less bass”, more crosstalk in case it is a stereo amp with single PS and a few other negative things.
With cables is mor...
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Along with last remodeling that we performed in Opera Room the room is becoming more the most pleasant room in our house. In fact we spend now more time then in listening room. We eat there, we watch films there. Sometime we watch TV there. I sleep t...
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Spoke last night with PurePower people and have good news.
First, after the “agonizing research efforts” (satire) the APS have discovered that source of fuzziness that I reported above and claim that they have a very simple fix that would not requir...
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[quote user="darkmoebius"]I asked Jim Hagerman how long it takes to break in interconnects, power cords, speaker, cables, and preamps? He replied - "Usually about 40-50 hours on a FryK. The amps are fastest and get most of the way overnig...
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[quote user="KIS"]There is just not much point discussing anything with you when you take a hard and strong stance on something that is totally a case of personal taste.Your idea of charging up another person emotionally with off the cuff "stupid" re...
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Amir, Romy was actually very specific about why he was critical of Melquiades/Macondo. Even in old posting, he made a point of mentioning that he very much knew what weaknesses he had. To be honest, I believe that his real motivations for change are ...
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[quote user="Mark Donahue"]Mani, Yes, the files were created using the HDCD Model 1 AD converter and you will actually get improved audio if your DA converter properly decodes the HDCD (Even at 88.2 kHz /24 bit!) There is information about the filter...
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With the omnidirectivety paranoia many people might loose from attention that fact that in order to be good omnidirectional speaker the RAAL new speaker has to be just a good conventional speaker first. The new RAAL speaker (does it have a name?) as ...
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Well, it is not necessary a fully qualified urban legend as the problem does take please with fixed based 6C33C but..... only under certain conditions. I have written about it a lot on my site but will very briefly recall it again.
Dima might be cor...
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If you follow this thread and my successes and tribulation with PurePower regenerators than you remember that I had problem with sound running two PP2000 for right and left channels. So, I had everything, including my DAW plugged into on PP2000,...
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[quote user="Tommy"]I believe that congratulations are in order for the great threads on Audiogon sewer; the Lamm LP2 and WE417A tubes and Wavac 805 vs Lamm ML2.1. [/quote]Yes, it was almost fun.
Unfortunately most of these people are quite primiti...
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