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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I'm also concerned about the range, but I believe that in using an appropriate driver, I may be able to achieve a target range of 40Hz to 400Hz.One reason for my wanting to achieve this range is precisely for the purpose of not wanting to have a 4-Wa...
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I have finished both big horns enough to listen in stereo, and the throats are now much smoother.I'm not using the MF horns, and have been listening all night. It has been a remarkable experience! (well, the inner-me objects and claims there's nothin...
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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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A few days ago a friend of mine and I did spent over an hour to fantasize what might be done if the ULF tube SET is planned. It is not so simple as to drive the tube like 833/GU-48, you will not be able to do with Milq driver. But I also would like d...
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[quote user="N-set"] That all will give 5 stages if I'm not overlooking some posibility: 3 filtering stages, with the first one bypassable, the driver being at the same time the last filtering stage [/quote] It is 3 stages total not 5. You do not nee...
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These are 103db efficient 15" midbass boxes. It's a band pass horn design with narrow bandwidth of 60-250hz. No port thought, it's a sealed box with two chambers in front of the driver. I do not know how they sound but, myself interested in trying th...
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This is a good example of a CNC horn. This is the Carfrae I was talking about. MDF Upperbass horns are made in sort of the same way, but you do have to cut the angles on the Lathe. (or leave the steps like a The thing is it is not really tridimensi...
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[quote user="deemon"]Hello , Roma ! I think that you can use only a back chamber with decreased size , and a serial capacitor . I think that there are no ways besides ... [/quote] Actually it would be a serial coil, as I need a low pass no...
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[quote user="jessie.dazzle"] Though the frames have wheels and roll very easily, my room is cursed with an elevated platform smack in the middle of everything (about 14 inches higher than the main floor), and to move the horns up on to or down off of...
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[quote user="Romy the Cat"] The 6moon has posted an article about the Living Voice:
http://www.6moons.com/industryfeatures/livingvoice2/olympian.html
http://www.6moons.com/industryfeatures/livingvoice2/olympian_2.html
...
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Romy,I might have overlooked something on your site but I understand that your ULF amp is driven directly by the preamp line stage. If that is the case, you may want to consider an old technique for integrating subwoofers and drive your ULF amp w...
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[quote user="Romy the Cat"]
The bass traps, the biggest one, have only limited effectiveness on the spectra of interest and usually have much more effectiveness in 2-3 octave above the spectra of interest. This make bass to sound less problematic b...
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[quote user="ayebee"] The horns that Stereo Lab make are very good, especially considering the relatively modest prices. I bought the "Ultra-Fi" version of the 140Hz horns and they are of course not completely free of resonance ….Present system consi...
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[quote user="anthony"]Have put all my DHT's on the curve tracer to see if pairs can be matched for preamp duties. [/quote] It was very interesting to read about all of it. If you have a socket for YO186 then you can accommodate all 4V tubes and I si...
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[quote user="cv"]Hi Romy, I dunno if you mean the C-core materials itself or the completed transformers... if the former (perhaps a poor term in this context), then http://www.elnamagnetics.com have what you are looking for. Seach for AMCC - these ar...
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Here is my proposal for an ideal horn system. The concept derives from the really of the horns as I know them, the available park of the drivers, the drivers’ real capacity and from… everything else that I might comment upon if you would not figure o...
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[quote user="Lbjefferies7"]I will be laughing my ass off when I visit the GoodSoundClub website and read about a certain Cat who was finally motivated into tuning the ports on the Mini's specifically to "adjust" Macondo's sound! I am reminded of...
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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="be"]
Horns are of course some kind of band pass filters with different kind of ripples at lover cutoff and beaming at upper cut off, according to horn type.Maybe it should be added that contributing to the horn sound idea, is that the...
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[quote user="RF at Ona"] Romy,I might have overlooked something on your site but I understand that your ULF amp is driven directly by the preamp line stage. If that is the case, you may want to consider an old technique for integrating subwoofers...
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[quote user="serenechaos"] I do not know of importance of enemys death to this topic. [/quote]
Oh, this is a sheer pleasure but do not call that dirt enemy. He is not enemy but way beyond it, he is the person about whom I have a death-wish as ...
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Hello D,Its sold by the meter, and has no packaging, so there was no name to note; I do remember that it came from Spain. Could not find any info on the net, however, I often pass by the place that sold it to me, so will stop in and ask. Hope they st...
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I had a Behringer DCX2496 that used for nothing and I think it got broken. I do not want to by another one. What I looking for is some kind cheap, no more than $100 solution that would allow be to have 4 order filters and crossover point up to 250hz...
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From http://goodsoundclub.com/Forums/ShowPost.aspx?PostID=6091[quote user="Romy the Cat"][Dima] feel that Lavry 924 is the only know to him properly implemented true Multibits DAC (and he knows them all) however he feel that there is much more “inter...
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I'm not sure exactly what I expected from swapping the digital cable at this point, but what I got was not it.Before I bought the Belkin Synopsis cable I just swapped out, I had sought out and purchased an Acoustic Revive cable, on the strength o...
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It is a RAAL Lazy Ribbon with the integrated transformer doubling as DSET OPT. Surprisingly, I started with a 4th order high pass filter which has steadily migrated back to first order...and it works.Next step is to trial a biradial horn for a bit m...
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msaudio wrote:"...Putting The Mid Bass horns behind your head will not work...do you thank you will be able to use any frequency above 80 cycles with rear fired horns that are behind your head?..."One simple way to get a feeling for how this might or...
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[quote
user="Jorge"]We only
use the Beringher for bass under 100 hz, driven by the main amp. We tried a lot of different
solutions, including analog active xovers, the DCX is clearly better than the
Analog Xovers we tried. There
are very few com...
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This is classical common mode noise interference on a common supply. This type of noise will pass right through any power conversion technology and in both directions. Due to the timing variations, I would expect it to be a little bit of mains inte...
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Quest Components have cheap 0.68uF 950s in stock, which is what I am using (the SH50s I am driving need a high pass). I have not been able to find 2uF but have not tried Roman's idea of ringing up the factory: they should send you a couple for free w...
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