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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="msaudio"]49Hz To 52Hz will be your peak, so the best you could hope for would be 3 hz below that flat with a perfect tuning of your length of your horn and back chamber of your box housing your woofers. If you shoot for the free air low ...
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The closest to date I overlapped cones and horns myself was waaaay back in my time with Altec A7s. But I have since then and up to now heard many fine "hand-offs" from cone to horn, and my current project speakers hand-off cone to (very fast/short) h...
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[quote user="zanon"]Romy:I was not aware that manufacturers of multidriver system let you attenuate individual drivers. I guess if you multi-amp, then you have control at that level. I have never encountered such a system so I cannot say, but if it i...
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[quote user="nl"] Within that horn-loaded range, the 210/515 type combo does reasonably well, and produces rather more inspirational midbass than most direct-radiator type strategies. There is a reason why these designs persisted for roughly forty ye...
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Preparing for my Midbass Channel projects
http://www.romythecat.com/Forums/ShowPost.aspx?postID=13597
…I did inventory if the drivers that I might use for it. I never did it before as the all were in different storages, now they a...
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Mats,
Actually I do not exactly understand what you are trying to accomplish. The Altec midrange after 4uF will roll at 3.5kHz-5.0kHz, depending of the type of coil you use. If you cut the MF channel so high then I would ask why you do so and why yo...
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If you know how in some optical systems imagery get destroyed when an aperture getting closed to F64 or even smaller, then you understand what happens in compression driver when frequency get higher and spaces smaller. Yes, the proximity of wavelengt...
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[quote user="RonyWeissman"] 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 attacks don't have enough metallic ring to them, nor enough blo...
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hi Romymy name is Angelo. I am swiss/italian, live in brazil the last 10 years . I grew up assisting my father buiding speakers and comercialize them in small numbers. I where listening for many years on Klipschorn replica with altec 416-8b...
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Hi Romy
a good sound in a room does not depend only on the speaker chain, but essencially also of the room acoustics. Probably many of the Trio systems didn’t sound right just because of that…. I was at Holgers Home in Lautersbach back in 94. He ha...
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Show Report PiS Festcomposed by Johan Dreyer
This show was held at the Rama Sebo convention centre in Freetown on April 30 and May 1.Unfortunately my kids played with my camera and destroyed the photos.Highlights were:JBL announced that they were s...
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Hi Romy and all,
first of all, my name is Henry, with a "Y". due to an Irish grand-grand-grand father called "O'Henry". the O' was deleted when my grand-grand father was born, due to a silly servant of registry office. :-) all my horns uses the calc...
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of MTM arrangement of two TAD 1201 in <100 Hz Horn ? I assume they would both work in the same frequency range . Also JBL LE8 is only 89 db driver and it doesn't look like it can take any power . Difference in efficiency within the channels would ...
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[quote user="ArmAlex"]The price is 167,000 Euro I was told. The material they used for bass cabinet at least looked like MDF. Sound was much better than any speaker I've heard in show, expect Cessaro which was wonderful. BTW Marten, Kharma, Focal, Ma...
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No, the speakers like Altec 19 have time miss-aligned drivers. The majority of 3-4 way horn speakers with oken/jensn as a bass that you might see in internet also very seldom time-aligned but it is excusable as the DIY-audio people are mostly Morons ...
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Hello Roman,Hola from Hong Kong! How are you? Haven't been here for long time. I have a question at the back of my mine for long time, and it may have been covered elsewhete in your blog before. I am asking it here but do point me to the thread if it...
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It looks like a new horn maker wanted to be know: the Eleven Horns
http://www.elevenhorns.com/welcome.htm
"... so.. what is a junkie? well, I guess an example is the best way to explain... between the two of us, we own a few dr...
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Thanks for the wise, simple instructions, Roman, also useful to others, I believe... that's what I actually do since I - 'twas ONLY 15 months ago... - became conscious of the limits of my tuning-by-ear and got my IVIE IE-30 with Class A measurement m...
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Mats, I do not know who is Jeffrey is, anyhow, your horns look nicer this time. You need to figure out now what would sound more interesting: the 8PS21 at its higher knee or the Altec at it’s lower knee. The important would be that beside thier absol...
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I have order 4cu feet sealed enclosure for two 15 drivers. It
is relatively small box but I need to hit minus 6-8 dB at 50Hz. The collection
of the drivers I have would be following: Vitavox AK51 and 15/40, Altec 416B
and 515B. I like Vitavox tone...
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Part 5: HornsIt was quite bad, bad on all horns…..
The first was the “new horns guy” …
(references to: http://www.goodsoundclub.com/TreeItem.aspx?PostID=484)
This year behaved quite nicely. Seeing me he immediately told that he has not...
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A site visitor pointed me out the I never made an intended write up about the David Haigner horns. I just forgot about them… OK, let analyze David’s claims and his Alphahorn design. I would say right the way that I do not like the Alphahorn’s id...
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I was thinking and thinking last couple days what to do with
my lower midbass situation. I do need to use 2 drivers per channel with 100dB efficiency
to get the dBs I need to match Macondo and Milq’s bass channel gain. I do want to use Vitavox 15”...
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From a company called CH Audio Design in Florida:http://chaudioroom.com/Sculpture.htmlCH Audio Design Sculptures Loudspeakers, with Altec 288 high frequency and 515 low frequency drivers.A fully horn loaded two way system. Using the ceiling and adjac...
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I have always thought my old Altec 802's with the concentric ring phase
plug sounded better than my newer 802 G with the Radial phase plug. If i
had to describe the difference i am hearing i would say the concentric
ring style just simply sound...
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This Sakuma’s is kind of BS. What I mean is that it has the appeal to be “good thinking” but only in the realm of marketing hype, something that the editor of “Direct Heating” had created around Sakuma. The reality is that the Sakuma’s TWO channel Am...
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[quote user="Romy the Cat"]Do not worry, you won’t be happy with your new speakers
as well. It is a little dirty secret that no one told you yet: speakers do not
give happiness. [/quote]In my case only speakers can give me happiness, because with e...
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[quote user="dazzdax"] Sakuma's idiosyncratic and esoteric way of thinking (he believes for example that tubes have a "soul") is not to everyone's liking. He is projecting his mind into a sort of tone control. At least for him this tone control bring...
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[quote user="Marc HENRY"] For this Musique-Concrete horn system called "Grande Castine" (it was developped in Saint Cast Le Guildo, Britanny, France, from were females inhabitants are called "Castines" ) i prefered a modified 60Hz Le Cleac'h cylindri...
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thanks I have a few questions to ask if you do not mind:
1) Did you experiment with surface of the horns and a negative contribution of smooth surface to Sound?Smooth surface are fine don't waste my time on a trival matters.
...
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