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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I set up today the framework in which I will be testing my Vitavox 15 inchers. It is a wooden frame from my bathtub with a driver screws to it, the massive sliding doors that squash the driver from both sides and cardboard that cover the wholes. This...
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[quote user="Michaelz"]Where does this come from? [/quote]It coming from a danger that we all under what we think about those things. With all our desire to equate loudspeaker with a musical instrument this comparing might be juts figurative as a mus...
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Romy notesQ[quote]
It uses at the buttom a regular sealed or ported box and the driver as direct radiator but they also put the speaker on the spikes and made the bottom looks like it is a horn output. Also at this larger model[/quote]On the smalle...
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Vincent Brient is French guy who has built an interesting installation that I think worth to analyze. Years back Vincent was an enthusiast, like normal people, but it looks recently he turned “pro” and came to audio market with his own version of...
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Thanks for your further thoughts and explanations Robert, Romy and others.It looks like the full room enlargement will be my choise. Dont know i want to block the windows though. Maybe i can solve this by making a glass window behind the screen.. I w...
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I've meant for some time to add a few shots of the ULF channels. Here's the first one; the photos were taken at my old place.Sized to fit through the door of the elevator (barely).Baffle and lid cut with diamond blade.Getting that lid up to seal the ...
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Ok, I blamed the tweeters and MF drivers now the turn of the MF horns. The Mid Frequency Horns (I’ll them “MFH” from now and on) are the stinky like pieces of horn installations, and if they are not done correct then they screw up anything big time T...
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Well, you see, the outer dimensions of the mouth of cause an indications of low end response and by objective evaluation of it is easy to estimate horn’s bass numbers. However, it is very far from “sufficient” assessment. A few years back I completel...
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Jean-Michel posted a reply in response to my commentary:
http://www.diyaudio.com/forums/multi-way/140190-jean-michel-lecleach-horns-109.html
[quote user="Jean-Michel Le Cléac'h"]Hello,
Romy is totally wrong on that.
( a par...
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In the linked thread “Munich High End 2010..” while taking with Joe the Archeologist I was mentioning the fundamental flows of open baffles. Still, the presence of disadvantages circumstance is not a red flag for somebody actively or my interest....
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[quote user="Romy the Cat"]Guys, I am not looking or care about the design specifics but rather looking for some fresh idea and inspirations that would make me to think further. You see, if I shut down Macondo and measure just ULF channels then I...
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[quote user="Joe Roberts"] I feel I am being objective when I say that a Mirrophonic system simply blows away Altec, Vitavox, TAD, etc. [/quote]
Joe, I am not a reader of your magazine and the phrase like “blows away” impress me very little. P...
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Romy, yes it is an interesting subject and one that I have thought quite a bit about although not directly from the angle from which you are approaching it.One of Macondos great strengths is narrow directivity from high frequencies all the way down t...
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Well, I do not know what they did in “Everest”. The level of being “horny” is not a fixed level. JBL might do own drivers that does not need or need less equalization from hors. It’s hard to say anything without having the driver in own hands. Sure t...
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ML2 is also making me hear my modified AI M3A pre-amp, not to mention I guess I could now benefit from all shielded cables. All this stuff was fine with the Wright 2A3s. Speakers: I built a version of Dick Olsher's 3-way Diamond...
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[quote user="Paul S"]First, I just have to ask: What are the odds that the same AA guy I just referred to obliquely in my previous post turns up immediately thereafter?[/quote]pretty good since he's the only guy who talks about them?[quote ...
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[quote
user="zztop7"]Romy, the drivers would NOT be facing down in a properly
built infinite baffle. [/quote]
You did not erectly understand
what I proposed above, it is OK.
...
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Here is an excellent attic solution that will even allow for output to 1 Hz:
www.rotarywoofer.com
No problems with the suspension sag either!
[quote user="Romy t...
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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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I told before that I have high respect to Brian Cheney (because of multiple reasons) but I do not agree with his loudspeakers, where he tries to use ribbons wider range then they should be... Brian recently announced his new model VMPS RM V60. Since ...
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I have 2nd order crossover both on the upper knee of the ob bass section and on the lower knee of the midbass section. My measurements show phase response and the summed spl is as good as it can get. Have you tried the direct servo technology or do y...
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[quote user="Paul S"]You have mentioned that you want a much larger enclosure for your oops unit. I was then wondering if you aim to merely broaden and/or lower resonant response or if you planned to in some way tailor resonance as it rela...
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Hi Romy:No need to reach for your medical glossary. The medical condition that I call 'Imponderabilis Neurosis,' is only the preserve of highly disturbed individuals such as myself (Hamlet seems to have exhibited symptons which are highly indicative ...
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[quote user="ayebee"]If you look at the original Bionor drawings (you can find them at klangfilm.free.fr) you see that the "bass" horn is actually made out of two sections, the outer is curved, the inner is conical and expand both horizontally and la...
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[quote user="Romy the Cat"]I feel that we deal with damping resonances that are not necessary directly related to solidity or to strength. The Cat[/quote]TRUE GOLD Romy , I wasted couple of hours over a phone to convince a
moron that tightening his...
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[quote user="skushino"]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 sou...
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I just found this thread and can comment on the Enabled DX4s. Limono (Wojtek) very gratiously loaned his Enabled 8 ohm Lowther DX4 drivers to me this past summer (summer of 2008). It took my a while to make the crossover for these (I have...
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Let's say we all have a midbass horn that plays down to 80Hz. I know some of us are special, so their midbass horn plays down to 40Hz. But still.What to do for the lower frequencies? Sealed or Infinite baffle (that's two good options). Now we need a ...
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[quote user="oxric"] I have always felt that if I went for a vertical array of 10" drivers, I would keep the drivers closer spaced than you do in your 'Dunlavy' made enclosure. Based on the 110" height of the tower, I see that you would be doing this...
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[quote user="Paul
S"]If you said anything about your 15" VitaVox in the video, I
must have missed it. What frequency range are you running them, and what
is low-pass filter? Given your prejudices, I suppose the cabinets are sealed,
so they can't...
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