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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="steverino"]If you went to a concert with chamber music and closed your eyes how would it be different? [/quote] Steverino, I think that the main difference between listening quartet recording and blind listening of live quartet is abilit...
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It is depends what kind horn it is. For LF horn the resonance should not be “an octave lower then lowest frequency you can realistically get from the horn”. In fact the common way is to much the assembly resonance to the horn cut off by squashi...
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[quote user="Jeffrey Jackson"] It seems that I do agree with you about the sound of compression driver midbass.. at least from what I have heard in my own room.. I have heard the big ALE drivers you mention on a bent steel horn similar to what ALE bu...
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Unfortunately its $1000,- total... Its not fixed, i can still do alot with that though.Alnico is better but only available in vintage drivers right? How does neodymium compare?The Jbl's seem to fall off fairly quickly. I dont need flat to 20K b...
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"Sadurni Acoustics' Staccato 4-way hornspeaker exploits MDF horns with up to 3" wall thickness. The 92cm lower midrange horn which loads a cone driver can "achieve 100Hz in-room". The actual 'turbine-horn' midrange driver is a compression sort. "The ...
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Hello Skushino,Glad to see "it's alive". I am near you, but I have a different phone #. You can PM me for it.>>> back chamber: an 18" flange / Google 18" diameter PVC flange. If you use the glue on type, make sure you use the very heavy g...
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[quote
user="martinshorn"] What Klaus also highlighted, is the importance to
him to unlimit dynamics - in order to achieve the most live-alike sound. First
of all, he noticed that Goto pleases him the most with uncompressed transient
attacks more...
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[quote user="Romy the Cat"]The Supravox was
12” the Goto 4” how did you convert one into another? You would need a 3-4 feet
adopter to do so.[/quote]I used GOTO's converter from dual 4" to aprox 200sq sm2 throat. It is still 2 times smaller than ex...
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[quote user="Romy the Cat"]How many octaves from fs? We are taking about how many fractions
of dB not octaves! Look for a threated:
http://www.goodsoundclub.com/Forums/ShowPost.aspx?PageIndex=1&postID=2991#2991
…as a good start. [...
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"I may be wrong to continue here with M4 ideas, Romy, feel free to move this where you want, thanks".
In my very audio eccentric strange mind, there is two concepts for M4 that pop to the surface, and that merit some explorations. Se...
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[quote user="jessie.dazzle"]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-lik...
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The usual basic takes are: 1) Try to prevent resonance by using inert materials and/or construction. 2) Change the resonance frequency. 3) Spread it around. Basically, you won't know how something will affect your sound until you play with it, to g...
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Oh well.. I'd really like to save the horns. I appreciate your offer to help out!Still no measurements, but this can start the trouble shooting...CONSTRUCTIONFirst I refreshed my memory of exactly what I built. They certainly are far from being copie...
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Collin,
I do not remember that I wrote that Trios are “duller”. In fact I do not remember I ever wrote anything about Trios in comparing to my current hors. Furthermore, my “Macondo” derived for the Trios and practically fully inherited the Trio’s ...
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Angelo,Although the idea might be looks like an “elegant” at a hi-fi shows but unfortunately it has a lot of pitfalls, the terminal pitfalls for my point of view. This is only my opinion but still:1) LF channel- the bassmaxx. I never had or hear...
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[quote user="Joe Roberts"] Interesting concept but let me point out a few considerations.
The diffusor does performs a mild "equalization" function if you want to call it that but it is also an aid to dispersion. It is light "EQ"...3dB might be abou...
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[quote user="Kerry Brown"] Yesterday a friend of mine brought over a CLIO analyzer and we graphed the impedance vs. frequency. I was surprised that the subhorn measures like a ported box tuned to 50 Hz ! [/quote]Yes, this all is very explainable. The...
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Wojtek wrote : "...haven't seen any other fane 8M for sale in months anywhere..." I just checked and found a pair of 8Ms on eBay... item numbers : 310021284113 And : 310023127933 (I hate it when a pair is broken up over two separate listings!). You s...
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[quote user="Macman"] Anyways, seeing the back chamber of my midbass horn, you would say that its way to big, no? [/quote] It is very hard to say. You need to measure and to publish the resonance frequency of your loaded driver and view it in context...
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Another very quick post - I have guests arriving from Japan in a couple of hours. Will respond more thoughtfully when I have some free time.University Dean plans: Mouth - 1080 in^2Throat - 78 in ^2S(d) - 132.7 in^2Compression ratio - 1.70Path lengt...
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http://goodsoundclub.com/Forums/ShowPost.aspx?PageIndex=1&postID=6011#6011
The back chamber is very important...about half of the drivers energy goes back there so it needs to...
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The first and the bigger thing that I like about them is that Anima is trying to use the vertical-horizontal configuration where the bell of the vertical horn serves as frame for horizontal channels. I love this idea and had a number of my own th...
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[quote user="jessie.dazzle"] First question:
With the 1.5 gallon rear chamber, the resonance is 700Hz With the basket sealed by tape (very small rear chamber), the resonance is 49Hz Assuming there was not a typographical error, from this we...
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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 res of your design, of...
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I spans last night some time measuring all my Vitavox 15-incers drivers, inspecting them, matching them and trying to find perfect pair. I would probably get involve in Ménage à trios and will sleep with them if I were able to arrange it. Since the ...
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[quote user="be"] "another big selling point to me was the 505 being a low resonance compression driver.. there just aren't many drivers with a resonance in the 80 to 100 Hz range like this driver... I have just begun my playing, but am already quite...
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OK, my carpenter has finished today his part, go his final check and the project is officially over for him. Some minor things I will ask him to correct next week. Also I will ask him to put a narrow slightly darker border between horn and the wall, ...
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[quote user="be"]I shold make it clearer:The Goto was used in a Goto 150Hz horn, crossed at 180Hz.I guess that is a proper implementation for Goto.The Fane was in a 140Hz tractrix horn with a 10cm throat and a not optimised (to large ) back chamber, ...
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Ok, I will share with you some ideas that I have in my head how to deal with horn decay asymmetry. They are in a way the further development of the Haralanov’s idea of acoustic diode – the brilliant concept from my point of view.
Before I will...
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Herman,
What you describe is fine. Over the course of last years I had a number of people who report identical things to what you do. Even if you change volume of back chamber and move resonance frequency then sound will change but it most lik...
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