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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="Romy the Cat"] I have to admit that although the Macondo “Water Drop Tweeter” sounds very good but I do not have that “shocking sound” that I got from the “Water Drop” during my initial introduction to it. I kind of always felt it and I ...
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IMO, any sonic benefits from running Lowthers stock are totally swamped by excessive, ragged response that is generally (but not steadily...) rising - a lot - toward HF. There have been many ideas for "taming the Lowther", and here is another one, b...
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[quote user="jessie.dazzle"] Resonant frequency :
I did not try to measure it. Can anyone confirm the following : I assume this parameter is most easily determined by playing a series of tones at constant signal strength (volume setting) whi...
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I know that some of you might consider it as a dangers subject and if you afraid of yourself then do not read any further. This view has no direct relation to the subject of my site, namely: “advanced audio and evolved music reproduction techni...
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I was reading the Stefano Bertoncello's post about his new multi-amping again options.
http://twogoodears.blogspot.com/2010/09/multi-amping-again.html
.. and I feel that it would be a good idea to brief summarize multi-amping cros...
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[quote user="serenechaos"] on 3) & 4): Dave Slagle, Intact Audio, knows a LOT more about transformers than I do, and the nickle autoformers I got from him work so well, I totally trust his (and/or Jeffrey Jackson's) judgment to over my "guess...
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My sub-bass amp is back but I am not sure if I am comfortable with it. The guy from QAudio did a wonderful job to fix my modified B-2 power amp and now I have my amp for ULF with passive line level filter in it. So, Now I have two identical, fully fu...
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Latterly is have been some controversy with new Placette output impedance, it does not look like it is 3R but rather 37R according to my measurement. I need to clear it with Guy. I also desided to address (since the Active Placette is a discrete op-a...
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This mooring I decided to play with my infinite baffle. The
mess with my analog crossover hat was calibrate for my old listening room gave
me bad IB taste. I bought used stinky Behringer DCX2496 Ultradrive Pro crossover
for $100 to find my new cro...
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[quote user="cv"]That upper rolloff in the OPT comes from a number of distributed capacitances and leakage inductances in the transformer - it will not be a simple filter. Lots of transformers have weird resonances up at the top of their range. In fa...
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Daniel, if you have start, the igniting voltage, on the gas tubes 197V then it is perfect. If the tubes do maintain stable 150C then leave it as it. Each of the gas tribes has own stabilization voltage. If one of them has let say 148V and another 150...
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Romy, I do agree with all your comments. It is true that the magnitude of the rubber taste very much depends on the crossover frequency. I used them below 64Hz, but with first order filter, implemented before the amp that drives them. With that kind ...
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[quote user="noviygera"]I am very curious what "properly made" means when perusing the tonal attributes of LF. What properties or specifications other than driver diameter do you evaluate when perusing a better tone?[/quote]
Normal
0
21
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[quote user="Romy the Cat"]I did not say how my saga with APS Pure Power regenerator finish but it never finished. Since the end of the last year the regenerators is sitting in my closet and I have sent the unit’s main board to APS people for the “re...
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This thread is split from the following thread:
http://www.goodsoundclub.com/LatestPosts.aspx?ThreadID=2665
Jessie, I hope you do not mind that I pulled it to the forum explicitly dedicated to the Melquiades Support.
5-channels Melquiades is ...
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Got the ultra low DCR toroids coil and pit them in use. Yes, it was very right move and they a bit trimmed the midbass tail. Playing with inductance and listening how the midbass decays (measurements are worthless in this case) I ended up with 4.8mH ...
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Romy wrote:For Vitavox S2 to use Tractrix 600Hz with 1.5KHz filter is a bit too close in my view unless you stay with second order filter. Would you elaborate further about your warning? I'm very interested in this application.I think you use the S2...
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Interesting, thanks Guy for posting.
Let analyze what was done in there. It looks like well-thought, time-aligned, looks like multi-amped configuration. BTW, how the filters were implemented and what (slope/order) filters were?
To my knowle...
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[quote user="Paul S"]Ironically, the "best" musical bass I have gotten is from the ML2s 16 Ohm taps, which seems to fly in the face of both the concept and the obvious problems that the Z/load creates. What I am saying is that despite the "kitt...
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You do not have a single capacitor on that ribbon as your
cap acts as a second order filter along with the ribbon built in transformer.
You might want to push the ribbon further then 12per octave that you have. I might
not do it if you are “satisf...
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[quote user="Bill"]
Had problems 2 and 3 here with my British crossovers
Both speakers have the 78 hz. Dip after a 50 hz. Peak. they are probably room resonances. Try moving the speakers and/ or the mike and remeasure.Also you have the sa...
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It is very interesting to hear this idiot pontificate about
turntable able reproduce element of time in music. Some years back when I
visited him, I played to him Tchaikovsky 6 symphony that he never heard, and
after listening to the 1st movement ...
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Scott,[quote user="skushino"]- Remove L-pads from mid and tweeter (sounds a little brighter, yet "more pure" and "better" to my ears) [/quote]Lpad sets the attenuation and this is the parameter that should be tuned without fantasizes and subjectivism...
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[quote user="Romy the Cat"] 1) I would like to try amorphous core foe my LF transformer. I know, I know, the amorphous core is not LF core but I know what I hear and if I found somebody who would be able to make for me d...
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It is difficult to say below what frequency there is no sound registered, the lowest fundamental on a double bass is 41Hz and the A0 on a grand piano is 27Hz, both these fundamentals and at least one harmonic thereof would probably be recognizab...
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Here are some my ideas for an “Unlimited Turntable”. Feel free to share some of your ideas… An “Unlimited Turntable” should allow multiple arms. It should be a good quality arm with a good stereo cartridge…. Also, it should be a good quality arm with...
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[quote user="stuck.wilson"] having seen the benefits of first orders in my own application tonally AND dynamically[/quote]
It's never was my experience. A never seen any tonal distinction between first and second order and I don't think that I exper...
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Over the course of the last year I have been gently harassing my transformers-savvy surrounding trying to evangelize them into amorphous core. They stubbornly and perhaps stupidly resist. Some of them not…
During the last few months I was tal...
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[quote user="Romy the Cat"]Even though quantivly and structurally bass is correct but it is not what I am looking. [/quote] Last night I got rid the SMS crossover. I built in the 28Hz, 12dB per octave crossover in the Yamaha B2 amp that I use f...
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[quote user="Marc HENRY"]hi all,thanks for your interest !yes the frame is curved, HF and MF are //yes there is a phase plug in the bass horn. This cover 80-300Hz.there is a separate infra-bass section, covering 20-80Hz.images of the bass phase p...
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