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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I went today to Srajan’s site check the news and saw the following:
“April 08 - New HalfNote Audio brand: The latest addition to Mr. Barnum's growing stable of import/export products are the $70,000/pr 50-watt parallel 845 Grail SET monos by Chalice...
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Alas, not much time to deliver the promised treatise...So, tantalisingly, I will suggest this; for the range 1k up, you would have no problem getting a small mumetal OPT made suitable for the 6C33/S2 combination. Actually, I have something simil...
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[quote user="morricab"]I have a phono stage from the Korean company Silvaweld that uses the 5651 tube in the power supply as a voltage reference. It also is using a Russian 6C19Pi tube along with EF86 pentode as the high voltage regulator. ...
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Hi Romy,
I currently use a 3 stage transformer coupled amp with 112's, 71a's (as drivers) and your favourite 300B output valves:-) I'm not sure whether I'd go back to a capacitor coupled amp. I just acquired some Tango NC20 IT's to replace the NC...
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[quote user="Romy the Cat"]
May ask you: how you drive your Reds 10” and the most important do you feel any their deficiency in power handling. I mean after the 109dB Macondo I have tendency to drive the small Reds slightly hard and this LF drive do...
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I am sorry I do not want to pollute the PP2000 thread with battery options.Right now I am in the process of testing a lot of different comercial amps to see what I will stay with, or which route I will be taking with my system in the near future for ...
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(sorry, this is supposed to be posted in the questions and answers colume but I must be so stupid to have it posted here and now I don't know how to move it there.)Hi Romy,How are you! This is Welborne, from far across the ocean, Hong Kong. I have k...
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[quote user="Romy the Cat"]Now, how does it sound and what you drive with
it?[/quote]I own or have owned a number of amplifiers with valves before this, Pathos Twin Towers, Audion, Audio Note, Jadis etc. One of my friends who has the same Avantgarde...
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I was traveling yesterday and away from the computer until this evening. I'm glad to see my post as the source of controversy and even cause for a public flagellation from Romy. I don't know whether to laugh or to cry. Actually, I d...
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[quote user="Stitch"]Silbatone made a Demo with those Horns (the big ones)They said, it is one of three existing WE Horns, made 1935/36 (only mod is the addition of the tweeter you can see there). One Horn is made for 3500 Visitors, so we got a 7000 ...
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This is my first horn build effort. Been thinking about this since starting to build loudspeakers and finally have a listening space big enough to support a horn system. This is where I am at now, I know there are opportunities for improvement. And I...
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Romy,Your Macondo system is something that has been a "role model" for what I'd like my playback system to be in the coming years. And much of what I've learned about horn playback systems I've learned from reading your writing and other posts on thi...
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[quote user="Bud"]I am about 3 weeks away from supplying 3 Kz ohm to 4,8 & 16 ohm SE outputs for 300b or 2A3 tubes to George Wright, of Wright Sound, and Gary Pimm of Pimm CCS fame (constant current controls to buffer stages from each other ...
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[quote
user="devo_yan"]I should use at least 2 amplifiers (one for high
frequencies and the GM-100 amp for low frequencies) with a tubes active filter
at the inputs of each amps. [/quote]
Yes, you might, though I
am not a huge proponent of activ...
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This is my first post here, so bear with me if my set-up isn't as sophisticated as yours.More and more as of late I started to notice that records exhibit surface noise that was less pronounced [or absent] before. I bought this cartridge 5.5 years ag...
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This is something I've been chewing on for quite some time and finally decidedto make it happen: a serious Stax headphone amplifier.I hope I can use this space as a sort of a blog-report on the progress...if not feel free to remove. I've been "forced...
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[quote user="Merlin"]No. You are wrong. Harmonically, my SET is quite superb using either 300b or 811 I have unfettered access to the music in it's entirety. Transformer cores just distort the signal. [/quote]
Well, I do not want to argue the ...
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What I find interesting though, Romy, is that many of the SET measurements show gross distortion even when putting out very low power, which suggests that they are saturated from the high static DC current running through them as they must for a Clas...
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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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[quote user="N-set"](feel free to re/move this post to the electricity thread)As the power supply I'd regard everything from the power generator in the power plant down to the actual load.Why the power transformer should be the cutting line? I do hea...
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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="drdna"]
Paul S wrote:
Well, I thought there was a lot of this going on all along, but that we just haven't come up with much that is "universal" Yes, my thought is that there is NOTHING universal, but that thes...
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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 class of amplifiers. When I to...
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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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[quote user="Wojtek"]I'll experiment with the PSU a little. The transformes have only 1 Ohm DCR and total supply impedance for a channel would be ~ 45 Ohm (with two chokes in series) Imput choke looks like can take 1 A current! [/quote]
Be carefully...
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Paul,It would be improper for me to write down what I have worked on over almost 40 years in the telcoms business. WRT a CV for example, I have in the past written it all down and the reviewers do not believe it. Eventually, i stopped bothering abo...
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[quote user="Romy the Cat"]Hi Romy!
The 515-8GPH were in same scale as the 515G with slightly above 35Hz resonance frequency and 103 sensitivity - a very good candidate for 60Hz horn. The 10” throat? No bolls to go for 9”, how about 8”? ...
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While I would agree that modern construction should be much more robust than that of 5-6 decades ago, actual machining and manufacturing costs today are significantly higher than they were back then and there is much less of it going on. Look a...
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Thank You
I'll experiment with the PSU a little. The transformes have only 1 Ohm DCR
and total supply impedance for a channel would be ~ 45 Ohm (with two chokes in series) Imput choke looks like can take 1 A current!All Iron is mil quality and p...
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[quote user="drdna"] It is a very old idea to say that higher power is required for good bass response. I do not think you will get any argument from anyone that increased power makes finding solutions to achieve a good bass response easier. [/quote]...
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