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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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OK, as now, I see no problem to conclude to the project successfully in 1-2 weeks. The horn give much less problem then was expected, as my progress with crossover going on the midbass horns sound more and more disciplinized. Today I will be expl...
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There is more information about the Lamm new LP1 phono preamplifier, including the price of $33K
http://www.monoandstereo.com/2012/12/lamm-new-lp1-signature-phono.html
The images do charley show two step up transformers at the ent...
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The exceptional 15-inchers would be two fitted in two categories: the bass 15-inchers and wide-range 15-inchers. It is imposable to think about the exceptional and wide -range 15-inchers and do not mention the 1946 -1973 production of the Tannoy Dual...
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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="Romy the Cat"]
(1)Interesting that you omitted in your response the “insultingly-extended HF”. I feel it one of the biggest problems as luck of “transients from distance” people foolishly substrates with a presents of bogusly-supplement...
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I went there a year or so
ago and even had in my room Klipsch corner horns. I do not know, it is bit
freaky. You need to understand that all of these surface-loaded folded horns
are not really a horns but resonance chamber. It does not means that ...
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[quote user="hagtech"]I have not tried this tube yet. It might push the limits of the tester. The 6.3V heater current supply is nominally rated at 5 amps. It might be ok to push it to 6.6 amps. I have to think about this, make...
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[quote user="Johann"]Hi Romy,i want to use the 6E6P-DR (triode mode) as driver in my tube 45 amp.I use a D3A (triode mode) with Anode choke at 180V, 12mA. Grid 2 is connected via 50 Ohm resistor to anode. Grid 3 (pin 8) is connected to cathode.Th...
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In reference to the two (or three) prototypes, the base design contains one (1) driver, a second proposal to the base design uses two (2) drivers (using almost the same exact enclosure--an increase of volume/area in the chamber containing the two [2]...
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Hi Romy
In my experiments, the corner loading influenced largely between 120 and 350. Above 350 u need a phaseplug on the cone.
Below 120 its pretty much immune to the details of corner loading, max a bit.
Below 50 its even sensitive to the wall m...
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[quote user="glaesemann"]Roman in a few posts you have made reference to the interesting topic of cable current loading. I'm keenly interested in your findings.[/quote]
Glaesemann, there is not a lot to talk about it. My observation showed that prac...
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[quote user="Andy Simpson"] (2) Yes, in most recordings - which are unlistenable - multiple microphones are used in close proximity in order to artificially generate 'clarity'. The side effects (as you noted) are massively exagerated (but uncon...
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I spoke with various people about availability of upgrades for Sansui TU-X1. I have to admit that I have no problems with it sound and my concern is purely intellectual – there are better sounding resistors nowadays and there are better caps then ele...
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[quote user="starboy"]I decided recently to add the Shelter 901 to my collection of 'Groove Riderz' and wondered what was the justification of the price hike for the 90X. Read the same review as yourself and thought that I learn't nothing other than ...
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The Other End of the Single End: Modern Horns Done With Flare An Interview With Dr. Bruce Edgarby Dave Glackin, printed in POSITIVE FEEDBACK. 1996
Dave Glackin interviewed Dr. Bruce Edgar in his home, prior to the 1996 WCES. A follow-up on the speak...
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[quote user="Romy the Cat"]Ok, let dive a little bit further into my examination of the subject of Lamm ML3
What is important is to undusted that my view less targets the Lamm ML3 but rather it targets the ML3 as a representative of entire cla...
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Hi Romy,thank you for your answer. On weekend i will rebuild my amp for the 6E6P-DR. You are right, the tube datas shows that pin 8 is a screen. On D3A pin 8 is Grid 3 connected to screen.I will try it with pin 8 lifted and connected to ground. I hav...
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[quote user="RonyWeissman"]…Have you tried…. [/quote]
[quote user="Romy the Cat"]…. in the field of cartridges dissectomy….[/quote]
[quote user="Paul S"]..And I coulda sworn I'd just cleaned 'em...Paul S[/quote]
I spend so time figure out what is ...
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Mark, here is the the point that I make. You said that no matter which direction I went off of the baseline you couldn't hear much of a difference. Then use other methods (microscope or not) you did found the direction and distance from that baselin...
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[quote user="guy sergeant"]The Ultimate turntable only needs to provide for one arm. The ultimate arm. Why compromise its performance with various inferior arm designs.[/quote] Well, certainly a single ultimate arm would be a good thing but I still w...
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It seems like you are saying that so loading the motor somehow makes it more accurate, so it sounds better. Is this the case? I thought the "most accurate" speed control was DD with a servo (that only "corrects" errors after the fact), as "measured...
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Gentlemen:I've thought about this mid-bass challenge for quite some time. I have tried many approaches.For the sake of my example, let's assume mid-bass to cover from 60-600Hz. That just happens to be the classic "decade". I have to fully agree with ...
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Hello Romy and others,Ive been away for a long time taking care of my health but i'm back with renewed interest. I am moving to a new house in the future and have plans for a dedicated music room (and an occasional movie) The space is however much sm...
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Collin,I do not know why you guys dive so fast into self-Moronism rebattling – it was absolutely not my thoughts. The escaping from family is one of the “permitted” reasons to built dedicated listening room. What you do: planning ahead is perfectly n...
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[quote user="Romy the Cat"]Good, I hate to know everything! I just wrote that the poor Murat
with his neurotic audiophile itch is condemned to go brainlessly very soon over
many drivers. A few days pass and the guy have brought to his room an army ...
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Of course i am referring only to the horn part of a 210-type enclosure. Below the horn cutoff, perhaps around 70hz for the 210, the remainder is filled in with a wooly bass-reflex peak, which gives these boxes their characteristic fluffy, indistinct,...
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Today I spent many hours trying to remove large LF transformers from Melquiades belly and replace them with another one that would load my 6C33C a bit harder. I do idle my output tube very hard and my objective was to get to let it go slightly. The ...
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Hi Romy - Yes, the sub is Bruce's seismic. It is big as a refrigerator, and the idea of having 2 huge boxes in this little room is, well, intriguing.... Being new to subs, isn't there an obvious danger of over loading this little room wit...
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I would like to think a little about the monitors. A monitor is kind of bogus name but useful. I usually call a loudspeaker that is not floor standing as a monitor. Sometime they called bookshelf but I hardly image any loudspeaker on a bookshelf…
In...
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Stuck,
You can NOT stack coils in series to get a “distributed half order crossover”. To make it “distributed” the first and the second first-order filters should be decupled. For instance the first filter might be at line-level and the second at th...
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