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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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The bass enclosure and that door and windows are the things that I haven't decided on yet! I am the owner and the builder of the house and I can do whatever I like with it. Actually that door and windows are not there, it is different now. There is a...
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[quote user="Romy the Cat"] 4" throat into 1x1m mouth…hmmm, you hardly
will be able to get from it 50Hz. Even if you go for ¼ size and 2 drivers then I think it is a bit too
small. Also, looking at the picture it looks like your horn open up too s...
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[quote user="Romy the Cat"]Of cause not but did you read and understand the Macondo
Axioms? The Macondo Axioms proclaims that an individual driver and individual channel
have to be set in maximum suitable for own topology operation. According to Go...
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Xandcg, these bass compression drivers is a controversial
subject. T think there are 3 of them ALE 160 and P1260
and GOTO SG-146LD. I think they all 4”, it would be very nice if they were 6”.
However, 6” exit might be a bit too wide for compre...
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[quote user="xandcg"]Now I got why
exactly midbass horns are reported to be so complicated to be properly made. [/quote]
Well, I do not think you did as I promise your
that the complexity is much more then you know, or at least then wh...
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[quote user="skushino"] Bottom exhaust.
Could keep it simple and fire straight down onto the floor. I think
there are benefits to adding a very robust floor platform beneath the mouth,
maybe with a reflector, similar to Bruce Edgar's Seismic Sub...
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Oxric, I can't imagine a CD making good sound so low. In my experience, paper cone drivers simply sound better than CDs below a certain point, let's say 250 Hz (usually higher). Of course there are always exceptions to every generalization, and I h...
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I'm of the opinion that listening room aesthetics play a big role in enjoying music at home. This is self-evident, but over the many years playing with audio, my listening room has become incrementally cluttered with "audio detritus". It's ugly and...
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Hi miab, my room is approx. 6x5x4m, so although quite small by North American standards (not UK!), the ceiling is higher than that of most modern houses. This seems to play a big part in the LF performance of any speakers in this room. I currently ha...
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I am actually doing the bass and ULF with different modules and amps. My bass modules are the dual tad boxes driven with their dedicated monoblock solid state amplification. The tapped horn is working for ULF only as it is crossed at 30hz with 18db. ...
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Romy, I'm very proud that you are following me and commenting my achievements.I just don't understand why you are doing it in a manner that you are the one and others are idiots and morons. If you don't understand others, you can ask them questions. ...
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Last night I was cleaning/setting the room where the hated Altec 19 were sitting and I decided play them for a while. I used a few different amps. To drive Altec 19, especially in it’s default configuration, always was a subject of debates and disag...
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[quote user="Romy the Cat"] Still, I did not mention the most important thing about my new midbass horn. This most important and the most astonishing new characteristic of Sound I did not pursue and I got it purely accidently. I did not talk ab...
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Here is an interesting, atypical nowadays, attempt to get 45Hz. With massive (not plywood construction), use one diver instead of two drivers, use better drivers and with proper tuning of the back chamber (it is wrong there) it might be a ...
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I certainly think you must use an active device for the bass/mid transition in any serious design at this level. Choice of amplifiers will be personal. I don't have the worry of output transormers.
I have heard both these and the Cessaro though (...
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I do not want to go on tangent in this Cessaro Gammas thread, still what Merlin said deserves very much to be accented. I juts mention it once in here.
The first order on the bass units is NOT an “unacceptable compromise”. If your bass section, the ...
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As a "sound man" friend has often said, the idea with pro installations is to start with plenty of volume and go from there, using a "board" to equalize for desired effects. And as you know, many if not most pro installations also use surround ...
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Sorry my post did sound like marketing speil, don't know much about the Cessaro bass horns, I believe they are a back loaded, 8 bass units with the Gamma four with the Beta, I will try and educate myself further and report back when I have heard the...
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[quote user="Romy the Cat"] Make an experiment, and I will simplify the case quite assertively. Take a typical compression driver, cross it at 800Hz, second order and load it into a proper contemporary horn (Tratrix or JMLC) of 300Hz. Listen that hor...
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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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Paul,
Thanks for the comments.
I may have come up with a way of making the BIG horns fairly painlessly.
I found a place that sells large sheets of urethane foam in several thicknesses and several densities.And, Its no big deal to find a place that...
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Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.
Interesting, the phase plug-like device...
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[quote user="Romy the Cat"]I think it might be very interesting to introduce the high-pass filtration for tapped horn and to see how it behaves. It is not only about thermal overload and restriction of excursion. The unloading of none-used bass gener...
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Hello,late, but my experience shows,most construtors didn´t understand simple diagramslike the real and blind part of a expo bass horn,so they take the flare rate not low enough, they take the wrong enclosure material, like PA,and they wonder it ...
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I haven't really thought this through, but if I were doing upper-bass horns again, especially if cut using a numerically controlled router, I might consider making tham oval, which would permit going for a horn with a lower cutoff (larger mouth) whil...
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One other nice thing about floor or ceiling-mounting the lower-bass horns is that you wouldn't need such a huge living room; the space would be easier to load (sonically), and you'd have a much easier time finding an appropriate house. Romy wrote :"....
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I am not too worried about the 6C33C bass, since I have other alternative. Even if lower loading will improve it, the problem is to get more power out of the 6C33C to a 40W (PSE perhaps) level to be able to drive the 12in or 15in woofer, even then th...
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Since my B2 ULF power amp will be long time to fix then being a compulsive person fully suffering from Dostoevsky Complex I bought another B2 amp to keep the blood flooding in my playback. Surprisingly it was no my decision but I got advise from ...
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TubeBuilder,you wrote>>>I have some ev15 woofersYou may be able to use them in Bruce Edgar 80Hz straight horns or better yet, he has a more properly proportioned 100Hz straight horns which are bigger than the 80Hz horns but have a ...
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