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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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NEW! CD-1180(4) Johann Sebastian Bach: The Well-Tempered Clavier Evelyne Crochet, pianoCD 1 : Book 1 - Preludes and Fugues I to XV (Total time: 65:45) CD 2: Book 1 - Preludes and Fugues XVI to XXIV Book 2 - Preludes and Fugues...
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[quote user="George"] I am not quite understanding part of what you say:
"It is very difficult to make a generalization about it but generally this quite “large bloomy space” will be a space equal to, I would say, 1/8-1/12 of the room ...
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Sorry for the delayed reply.
Oh yes. 50Hz is possible ; )
Fs of the driver is measured at 32HZ matched for both channels.
As for a smaller driver, the smaller throat, keeping the "same" length for practical reasons wouldn't load it suffi...
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For Starters of Classical Music.By David King (Amphissa)
SuggestionPick up a copy of a good introductory overview book, like Goulding's Classical Music: The 50 Greatest Composers and Their 1,000 Greatest Works which discusses many (not all) of the...
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[quote
user="noviygera"] One question to your response. You mentioned the resonance of 80Hz
is too low for this horn and to raise it to 110. What benefits does this
usually bring, this equalization of resonance to horn cutoff? [/quote]
It is ha...
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[quote user="Jeffrey Jackson"] first, basshorns... the basshorns that I posted here some years back are my straight ~50Hz horns (my memory is fading)... they are 8' long... then rear chamber.. mouth ~ 3' x 4'... throat ~8" x 8"... rear chambers of va...
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[quote user="jessie.dazzle"]The thraot size will be 7 inches. [/quote]
Wow, THAT IS BOLD!!!! The 45Hz how from 7” throat – that is very-very cool and very positively-obnoxious.
[quote user="jessie.dazzle"] Yes I have thought about paying someone e...
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I keep thinking about the type of the loading the guy from Germany
used. I am not sure if I agree with Josh that the absence of front chamber if
the key for the success that Josh describes. Let analyze it.
The front chamber for LF drivers is not...
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I kind of not looker but rather listener and when I do something I prefer to have a radio than TV. When I was hunting for my house I among other thing was looking to have a layout of the rooms what sound of my playback was well heard in my kitche...
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Paul is correct ; you could make the vertical member from one thick hollow pole or tube and be done... this is by far the most economical route.
But since we like that curve in your latest design... (this could become a very powerful sculpture) :
...
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Steve Schell pointed to Bill Woods’ site aka RCAfan.
http://www.acoustichorn.com/
I do not know the guy but the site looks attractive. Some of his old large horns are interesting as so on… however, what make me to wonder is the horns that Bill Woo...
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Luc,
I am not ‘lucfm’ and I hope he will reply to you but I would like to pass some of my observation that you might find useful.
In my past when I discovered Fane Studio 8M I went over a number of 5-8 inches. At that time I used AG’s Trio upperb...
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First off, I forgot to mention an interesting observation: Before running the sweeps (previous post), since the drivers in the upper-bass horns are new, I decided to verify/optimize rear chamber volume (they are easily adjustable)... I wasn't expecti...
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[quote user="Romy the Cat"]Get RTA and set the band-pass of acoustic pressure form the channel identical. [/quote]Yes, I need to get one! Although Bruce and my tech guy both advise that the RTA may cause more problems than it solves, ...
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Thanks for your comments Romy.
You should like this bit of news... I forgot to mention, these will be round-section horns...
And yes, they will be very heavy... Made from a metal armature and very thick, natural (hemp) fiber-reinforced, plaster...
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[quote user="rowuk"]It certainly shows my ignorance but I am surprised at the apparent market in Iran but still am pretty sure that it is a very small „privileged“ group of people participating. Practicing audio certainly can reflect the local „cultu...
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[quote user="Murataltuev"]Can you
suggest the thread to read about it ? So, how many octaves from fs will be
loaded properly ? [/quote]
How many octaves from fs? We are taking about how many fractions
of dB not octaves! Look for a threated:
...
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[quote user="Romy the Cat"]I changed the new flash at my site to “Ok, the midbass horn project is successfully over. Over 3 months, over 400 posts, over 180 pictures… all publicly available…” The project started physically on July 16, 2010, ended...
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[quote
user="Murataltuev"]Yes, back chamber is very small. And it is
tunable! So, I need 110Hz Tractrix...ok[/quote]
You might tune the Fs by using a acoustically semitransparent
fabric, like Audiotechnica does in their headphones. About the si...
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[quote user="jessie.dazzle"] Assuming you go ahead with the mid-bass horn project: If you decide to run the woofer towers along with the mid-bass horns, it is logical to assume they'll produce much of the range produced by these new horns. [/quot...
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Understanding Line Array SystemsBy John Murray
Behind the buzz, there are a lot of factors at work in line arrays. An explanation and comparison of current models. This discussion can’t be contained in just a few paragraphs, so we must start with th...
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Sorry Romy, dont say i said how it sounds. I did not. In fact i was just about to take back the statement of not doing better than a K-horn.
Let me put it straight. Above shows what is possible (more or less) i...
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So, basically you built a wall on the right side, separating
the listening section from whatever it is behind the wall. A bold move. As the
room become slightly smaller and you lost some time for bass dissipation you might
try to drop the slope at...
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I would like to share more of my troughs about the ESD
acoustic. That are not truly the troughs about the company but rather the troughs
that come to mind inspired by the company come to existence.
I do feel that it is an ultimate we dream of et...
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[quote user="Murataltuev"] What Macondo
axioms are breaking with using GOTO 146 with 4" exit in say 150Hz Tractix
?Why you don't recomment to do it ? [/quote]
Of cause not but did you read and understand the Macondo
Axioms? The Macondo Axioms p...
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[quote
user="Murataltuev"]
What will be your suggestion for upper bass
channel using compression driver ? [/quote]
I do not use compression driver
for bass channel. I would like to have my system esthetically balanced, to get let
say 120H...
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Thanks Romy, Paul, and Ronnie for the comments and encouragement :
Here are some responses :
1) Rubber gaskets :
Maybe it is not so important to have an “air-tight” seal (???). The rubber gaskets are there to seal the cover to the rear chamber...
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Lbiefferies7 wrote :
"... I am interested in knowing the material that you made these out of... I've read you mention doing patents, so if "mum's the word," I can certainly respect that..."
...
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[quote user="Romy the Cat"]The back plate is located a few mm from diaphragm and any back reflections are not compatible with wavelength. [/quote]
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Opening nights, opening minds
Innovative new conductors in LA, NY challenge the BSO to do more
By Jeremy Eichler, Globe Staff | October 18, 2009
Opening night concerts at the most esteemed orchestras are usually a bit of a ...
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