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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="Jeffrey Jackson"]........he has listened to Goto's advice quite a bit.. they have very strong thoughts on how to do things... some you will find humorous, others you will agree with... they beleive that electronics don't really matter.. ...
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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="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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[quote user="jessie.dazzle"]When doing the final assembly, you might want to use Nylock type self-locking nuts:http://www.nylocknut.com/Looking at the images, this might require that you use slightly longer bolts (the few threads exposed beyond the e...
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Well. It will be tonight – I will be trying to drive through the horn signal and to see how it will drop main resonate frequency. This will give the idea of the back chamber size. The 5 and 6 sections are not glued yet – it will be gone upstairs, oth...
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Here is the subject that makes anyone who does what we are trying to do wondering: do remover the screw from wood or not. Our leading position is the screw will be removed. We use long 5-7 inch double threaded screws that bund wood stronger than regu...
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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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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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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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[quote user="Murataltuev"] anthony wrote: Murataltuev wrote:So, the question is still opened: how to get 300-400hz.Perhaps give the JBL 2169H a try. It is supposedly very good from 300Hz to 2.2kHz, but I have never tried it. Use it in a sub 200Hz t...
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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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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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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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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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[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="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="Jeffrey Jackson"] so, my straight horns... I like them very much.. I built mine similar in style to what Greg B linked, but obviously much smaller.. mine are just under eight feet long (length of a sheet of plywood) and have a mouth roug...
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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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[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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The ideal horn system would have to be well integrated into the room, acoustically as well as optically/cosmetically. As far as a commercial venture goes, I believe that Marc Henrys "La Grand Castine" was already (except for the ULF dipole panel) ver...
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Romy, it is the UB horn that I need to first tune. Have found an earlier post of yours where you describe your process and will roughly follow it. First thing though is to measure an impedance sweep of the horn sitting in place to get the base line...
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Hi Romy, hi folksMy intro hello and first post, i just had to sign up. Just found the platform through googlin some hornstuff and came back too often.Especially the resonating oops was the latest topic that really cought my attention as im familar, a...
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If you are going to build such a huge cabinet or put a hole in the floor to use the basement as a chamber, why not just build horns in the basement with a straight 8-10 foot section in the basement with the back chamber resting on the floor, cut...
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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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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="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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