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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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While seeking for a CD capable of covering a low mid range, say from 300hz or under, I am offered a pair of TOA compression drivers of rather impressive size. Unfortunatelly a seller has no clue what model it is, except "it sounds as seducing as ...
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eyop fellas,Romy wrote: "Here we go! Not we are taking!!! I would not need the S2 tweeter and what it dose now in 400Hz horn is perfectly enough. I would go only for the midbass S2. Something with 6” cellulose diaphragm, low to medium compressi...
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[quote user="cv"] Did I ever mention my sulphur hexafluoride idea to you? You fill a horn with this gas, sealing the front with some loose fitting heavy grade mylar or whatever. The horn can then be 44% of the size you'd otherwise need. [/quote] Hm, ...
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I would like to thank you for taking the time to give me a very satisfying answer and explain in detail your views on the whole subject and give a little more insight in to how you do things. Yes I suppose I really knew all along it was coming and w...
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[quote user="be"]They mention an intricate back chamber for the high frequency unit, maybe thats the primary function of the tube, apart from positioning the unit relative to the rest.[/quote]
I did not read any their descriptions and I do not know ...
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Ygoh, Most of compression drivers have phase plug. A phase plug is very genomic center line oriented devise. A phase plug must be parallel to diaphragms and perpendicular to the axis of the driver. Practically all compression drivers have beggin...
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Jessie wrote :"...In the case of the system I am building, one can happily sit straight in the firing axis of any of the horns without experiencing the above-mentioned unpleasantries... No cringing (and this while using the older metal diaphragms). T...
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[quote user="rowuk"]Oleg has a lot of bad press in Germany for unkept promises and defaulting on delivery of product. Just keep an open mind next to the open ear. The best product only serves a purpose if it a) arrives and b) performs.I really like t...
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To save people from researching the differences between Romy's and my systems, I'll note the principal differences here, ignoring our ongoing mid-bass projects, which will be different, but both are incomplete, so not yet in the picture.As concerns t...
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I never had that Selenium 405 driver. Generally the phenolic diaphragms are very tricky and might have some excessive softness and some luck of transients. Selenium also had a habit to load gap with ferrofluid – it also might slightly detransientize ...
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Hi all
I dont know why Goto do what they do...
But if we imagine using only the - good - part of a "perfect" horn/driver combination we will find that the bandwidth will be very small.
About two octaves probably...
Think about it; most compr...
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[quote user="jessie.dazzle"] Upon reading this, I of course immediately want to know your reaction when running the S2 MF channel with the original metal suspended diaphragms reinstalled... [/quote]
A very reasonable question. I would like mys...
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Hello Guy,Please excuse the rapid fire response, bit short of time today.1)Your comments about the Io cart are most interesting; clearly it ain't about saturation. Here's another idea: if the domains in the magnetic material limit resolution (leading...
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A second opinion needed.
Interesting, I recently found a very-very well performing setting for my EV T350 tweeter. I changed the source for HF channel form amplifier’s output to the MF channel and now I source the HF channel AFTER the MF high-pass f...
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[quote user="audiofilofine"] All parts of the tweeter shave been designed and built.All are built in magnetic steel in preferenceto pure iron because pure iron is heated during processing and after processing was not possible to check that the charac...
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[quote user="op.9"]Anyhow, what are the 2" comp drivers that ARE any good and are available comercially? I didnt go with any JBLs because I had a very bad time with the 2427 1" version, could never get any music out of it. [/quote]
I would be surpri...
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[quote user="Romy the Cat"]I asked many times of my desire to have the final sparkle in the mid of this PP2000 softness is some kind of audiophile itch. I do not think so and I feel that the performance of my MF channel in context of the “different” ...
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Electronluv,
As I understand you were a few years out of audio business and it looks like you are back, nice to see.
I saw at your site just MF compression drivers not the bass drivers. Anyhow, I have a few questions to ask. You use berylli...
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I do not look for beryllium diaphragms, I just was wondering if someone has succeeded to manufacture them in “basement conditions”. As I understand it shall be VERY difficult.
Well, your driver might be interesting. If I was able to accommodat...
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Yesterday I spoke with a guy at a Russian audio forum who reported that he played with addressing many problems of compression driver by pumping ferrofluid in the gap. I am not a big fun of ferrofluiding generally and in case of compression drivers i...
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I picked recently a pair of S3 drivers. Not that I need them but it was good deal – perhaps someone in UK have demolished an old movie theater and a large school of S3 drivers with original diaphragms hit the maket recently. Also, I always meant to t...
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Audio Federation have publish some images from the Silbatone room at CES, even it is in their new idiotic format of the “magazine” but they still visible.
http://spintricity.com/445/public/Vol1-3/page182
What attracted me in the images is to see wh...
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Romy wrote:
"...But adding mass to membrane change the dynamics of everything, it also increases the exertion as it will add moment of inertia of the cone movement…"
This is what I meant when I stated that it comes at a price. In an...
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Romy wrote:"...a chassis designer told me. It is now possible to buy normal efficiency drivers with low mechanical loss..."Sure it might exist, but I question the application.First, a bit of the obvious:Consider only the driver; not the amps and rela...
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[quote user="nietzscheflake"] I am also thinking about how to get that headphone sound in my house and am contemplating the horn route… [/quote]
It ‘s fine but never forget that the imitation of headphones sound is NOT something that need to b...
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[quote user="haralanov"] My driver has not even a single trace of tizzing top end. Tizzines is intrinsic feature of ribbon drivers (including RAAL), not of well designed paper drivers. Actually, the heart of my acoustic system is ultra high perf...
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I’m glad you talk about geometry, but to respond to this I have to refer to other brands. I will only talk about facts and hope it’s not offending anybody.My basic point is: the flare rate has to be coherent right from the entrance of phase plugs. In...
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Indeed I am welcoming a newcomer to a horn world. It looks
like a Chinese company that makes me slightly to be withdrawn. So far I did not
see original Chinese production that did not cut corners or did not impersonalize
western product but in bad...
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[quote user="drdna"]
In any case I think it will be educational to see the effect on the sound. [/quote]
It will not be just “effect on the sound” but “affords on the driver”. I cut the lid of the shipping box in my trunk and it looked at the driv...
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Romy Wrote: Can you
define what do you mean “HF is not as clear as I would like”? The HF sound is very quick and weighty , which can be quite nice on classical guitar for examlpe, but the tone is not clear enough, meaning for example cymbal at...
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