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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"] Anyhow, I would like to add some addition to my “to do” list for 2008.
8) Try my new experimental AHFS in context of my RAAL “Water Drop” [/quote]
OK, I would like to share with readers of my site a notion is that I am ...
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Somebody from AA was asking about electromagnet. The subject pup up here from time to time but this time Bruce Edgar uploaded an interesting comment. Bruce is not a typical AA Moron and if he says “inaccurate things” then it is not due to ignoran...
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When you get a horn that will work i will trade for a couple weeks!I don't think wide band drivers are the ideal way to do things but the most cost effective way to injoy good sound i would like to make another pair to crossover from 3k to 10k.some...
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I kind if cycle my attention on the notion of compression and it is not accidental. When a few years ago I used the hugely dymick NT51 tweeter in my car I experienced problem to set the right volume and I run the volume control 10 times more fre...
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[quote user="Romy the Cat"] I do not use compression driver
for bass channel. I would like to have my system esthetically balanced, to get let
say 120Hz from a compression driver would take too long horn and it would be no
way time-aligned it. So,...
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For the person who very easy toss comments like “utter nonsense”, BS and “does not make sense” you are very uninformed. If you stop position yourself as an ignorant teenager who “knows everything” then you have chance to learn something. The Car Talk...
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Hi everyone,Ive been tracking this exciting conversation for some days. One from outside may think this is weird, we are making a lot of air about some sound-description without getting to the point. Im (or was) normally more rational. And if I read ...
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[quote user="haralanov"]I think you wanted to say reflection surface, not radiation surface, right? Radiation surface is the surface that is directly attached to the vibration creating element (the voice coil). So the radiation surface of the horns u...
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[quote user="haralanov"] Congratulations you have found and use this principle, otherwise the back chamber acts like pneumatic brake for the lower working range of the diaphragm! [/quote] Actually it shall act as “pneumatic brake” in a compression dr...
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designer of spectral audio and inventor of HDCD claims:"Keith Johnson, inventor of HDCD, claims that only WAV files guarantee perfect sound reproduction which can’t be achieved with any compression, even lossless compression. He says that any file pr...
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[quote user="Romy the Cat"]
A very good article on the subject that basically proves my attitude on the subject: it is not about technology but the idiocy of people who use the technology.
http://www.audiomisc.co.uk/HFN/ClippingOnCD/clipping.htmlT...
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Romy, I was asking questions here, and @ RMAF because I'm trying to gather enough information to build compression drivers. At my day job I am a prototype machinist at Los Alamos National Lab. I don't plan on going into production, j...
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ScottL,It looks like the two pics you posted are of different systems, the first being slot loaded PP, and the second (full-system) showing a "traditional" IB. You also seem to be confirming my intuitive hunch of potential sound benefits and horn ma...
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Decoud, I do reject any speculations about flux modulation in compression drivers as I do presume that it is absolutely negligible. It is like using a SS amp with ultra low output impedance, to drive a ribbon tweeter and to worry about return current...
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I dont want to hack this thread into TH, I tried them with sub-amps 150 watts and they didnt sound good, but I was using a passive preamp, when I added an active preamp things started to get better, now with 12 watts and a a lot of gain, bass is ama...
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I was slowly looking for a compression driver that would go in my Fundamental Chanel down to 200Hz. The YL Acoustic 550N attracted my attention. Then I realized that it is the narrow throat type of the drivers, aka WE555, not exactly that I would...
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[quote user="jessie.dazzle"]In the few converstaions I've had with him, Mike seems totally sincere and, as I've mentioned before, I very much hope he will one day come through.jd*[/quote]Well Jessie, it looks like your wish has come true. The Vitavox...
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Eduardo,
Thanks for your thoughts and illustrations. I also do not feel that loosely-suspended very small metal cone might be a right solution for midbass. To develop LF you need pressure, pressure is surface by exertion – there is nothing els...
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Bud, you might be correct and “spotting” a cone might have a positive effect and I most likely will send you are driver for your torture after I found a reasonable contender. Still, what you propose and what I would like to experiment with live in di...
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I’m not convinced at this point that it is good – I need to see it more in context of everything else - but the initial results are very promising. What I do now, I keep the compression Fane 8M in horn but I very dramatically increase dumping of it...
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I read the horn-related postings on this site with much interest because although I have not heard horns done right, at the same time I have always longed for a way to harness compression horns' absolute dynamic capabilities ...
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The Latour is a two way design with a compression horn driver and a 15" stiff paper, short throw woofer....
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"I would be no surprised that in the case of proper use the GOTO-type approach and Fane-type approach would perform identically properly"Both the Fane and the Goto where used as compression drivers, so there where no principal differences of use."Do ...
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Hello Romy,Which other output tubes have you considered? I researched ‘suitable’ output tubes to drive tweets a while back for compression drivers [Be domes] — but not phenolic domes. Reading of your results with the EV tweet reminded me of how sweet...
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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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What is the purpose of having the flexibility to re-configure from straight to J horn?This thing will be large and massive enough that physically moving it from one configuration to another will be difficult and require a lot of effort. Conceptually...
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Here are some photos of Martin Sedon's 204Hz and 340Hz Le Cleac'h horns, which likely have more reasonable shipping charges and fit through doorways, etc. better than the 160Hz version. They have a T-factor (expansion rate) of T = 0.8, which was reco...
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[quote user="be"] The best driver I have heard is the TAD 4003.
It does not use the secondary resonance of the suspension, as described by Duke LeJeune above for the TAD 4001-4002, to extend the response towards 20 kHz, but has a natural roll off fr...
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-Background- Enspired by Jeffery Jacksons system as displayed @ VSAC, I'm building a five-way horn system. Tapped horn for up to ~80Hz; w/ Eminence driver 65Hz Tractrix from ~80Hz to ~400Hz w/ fane 8"; 250Hz LeCleach from ~400Hz to ~2...
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Terry,
I did found that PP amps were good to drive BAD compression drivers (with ceramic magnets). The irony was that the better amps to drive the ceramic magnet were not just the PP amps but the solid state PP amps. Do not ask me why – I do not kno...
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