|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
Romy,
I can't find a/the post(s) where you describe the advantages of using a 4 inch throat. Stereo-lab makes both 4 and 8 inch throat 140Hz horns but I don't think they could make an 8 to 4 inch adapter...
Also, would it be advisable to have t...
|
|
I was thinking about the throat of my hypothetic midbass horn. This is complex, controversial and it has pretty much no answer, at least in the formeat I ask it. I will share my thoughts with you. Let pretend that I went for exponential midbass profi...
|
|
All below is written by Thomas Dunker
Yeah, "sound consistent independent of signal level" is a very precise way to sum up my whole speaker philosophy. Anything that is assumed to be constant, but which actually changes with signal dynamics is what ...
|
|
Hello John,The woofer is Fane Studio 8M and throat diameter on the 115Hz horn is 5.56".The initial 4.5" depth of the throat is made up by 6 MDF pieces with rough edges (awaiting bondo smoothing).I can easily add 3/4" pieces to the throat section to m...
|
|
When many of your will experiment with building and listening your own horns and spend countless amount of time by sketching a configuration of your new horn assembly you then might come to an observation that Macondo Upperbass topology is very s...
|
|
[quote user="Romy the Cat"] ygoh wrote: 1.) Why is it that you do not support using teo compression drivers in the same throat? Is the distortions increases, such as wavefront distortion? Sure the wavefront gets spread; it is what Wi...
|
|
[quote user="ygoh"] 1.) Why is it that you do not support using teo compression drivers in the same throat? Is the distortions increases, such as wavefront distortion? [/quote]Sure the wavefront gets spread; it is what Wilson does in his ...
|
|
JD,In the case of the mid-bass horn, the throat transition does not affect the sound enough to worry about IMO. Due to the narrow bandwidth (100Hz - 1000Hz) the step transition between the woofer cone and horn throat is acoustically invisible. I...
|
|
I was thinking about the throat of my hypothetic midbass horn. This is complex, controversial and it has pretty much no answer, at least in the formeat I ask it. I will share my thoughts with you. Let pretend that I went for exponential midbass profi...
|
|
[quote user="Kcct82"]
Hey Romy,
Goto makes 12" and 15" woofers at 100db. I recently found out they make a small two way system using an 8" woofer. The 8 incher's range is 55hz-8000hz so I'm thinking it might be a good candidate for use with 60Hz h...
|
|
[quote user="Romy the Cat"]I was thinking about the throat of my hypothetic midbass horn. This is complex, controversial and it has pretty much no answer, at least in the formeat I ask it. I will share my thoughts with you.
Let pretend that I...
|
|
I’m glad you talk about geometry, but to respond to this I have to refer to other brands. I will only talk about facts and hope it’s not offending anybody.My basic point is: the flare rate has to be coherent right from the entrance of phase plugs. In...
|
|
Here's how I would do it: The day before: Reserve two lifts and get two pieces of old carpet (about one square yard each) and two bottles of champagne. Insist that everyone involved gets a good night of sleep before attempting to install the horns (t...
|
|
After looking at the pictures at http://www.webbtjanst.se/lenco/loudspeakers.aspI'm feeling like it is both your room and the unfinished horn throat. Maybe more room related. If there is a rough section of your horn throat with "steps" of 3/4" m...
|
|
Throat 19x19cmMouth 71x71cmlenght 77cmback chamber 18.8L...
|
|
The SG505TT driver can be used with S150 and S200 horn. The crossover frequency suggested by GOTO for each horn is as follow:S150 - 200Hz and S200 - 270Hz. Of course, one can use the single SG505TT driver to pair up wit...
|
|
SG505TT + S150 horn crossover at 180 Hz is not recommended by GOTO. The SG505TT driver is not recommended to use with single throat S150 horn. Double SG505TT driver is recommended to use with single throat S150 horn.&nb...
|
|
Ygoh, Most of compression drivers have phase plug. A phase plug is very genomic center line oriented devise. A phase plug must be parallel to diaphragms and perpendicular to the axis of the driver. Practically all compression drivers have beggin...
|
|
Romy wrote :"...I have no way now to look at the right number but how I “feel” is you shell be arriving under 8’ of length and 40Hz cutoff with 8” throat. With 4” throat you will be looking at 12” or so…"For info : In my case, I am using an 8" throat...
|
|
I got GOTO drivers to see how they are going to work in 46Hz horn!This is just luck, as I never expected to find them in Russia, but I did!They are in mint condition, used very little, bought 8 years ago directly from GOTO factory.I have 4pcs - 2 per...
|
|
My current speakers are Edgarhorns with the straight 80hz upper-bass shell. The bass never sounded correct to me. The problems with Edgar's mid-bass are well documented at this site and elsewhere. I tried some simple modifications to the crossover...
|
|
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ironi...
|
|
[quote user="eduardo"]
YL 75000 has heavy phase plug indeed , rca style (see sketch) while 1250 ( I never had one) gets a fixed metal dome equivalent to spherical piece on 75000 and rca plugs without conical shape pointing the exit of throat. Ir...
|
|
[quote user="RonyWeissman"]A mid-bass horn for my Altec 515-8G drivers operating from 100-600hz [/quote]
Rony, I think your wish to have mid-bass horn with 515G is a bit faulty. A mid-bass horn for 515G shall be 50-600 Hz. Let me to explain. T...
|
|
I know, I know, I know…
Any person who in one way or other practices horn-loading loudspeakers has a wet dream about bass horns. Here and there people built them. Here and there you can hear the assuring and overconfident statements like: “the...
|
|
[quote user="Blaukopf"] First, Romy describes his horns as spherical. Later he names them tractrix. Are some of the profiles of the spherical wave profile? [/quote]
Yes, they are spherical, wish means not rectangular. ...
|
|
[quote user="Kerry Brown"] Bruce says his folded upper bass horns work much better though - and he's usually right...[/quote]Well, let do not contaminate ourselves with superficiality. If Bruce suggests that his folded upper bass horns works better t...
|
|
Well, it unquestionably much better, still I am afraid that they are trying to spread one ass across two chairs; I will talk about it in the end. The change from what was before was around the frame and upperbass horn. It looks like the guys are tryi...
|
|
I have been looking in to mid bass horn designs to experiment with lately for the 4 way horn pa I am working on. As usual Good Sound Club always is on the Google search when dealing with any kind of horns. Although my reply to your post may be a few...
|
|
[quote user="Kiom"]hi alli started recently producing MDF Tractrix Horns. Size up to 1m diameter possible. shipping worldwide. prices : 48cm diameter us$600,00 90cm diameter ...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
0 |
|
 |
|
|
Total human visitors: |
42,875,692 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
von Biber, Heinrich Ignaz »
|
|
Gaßmann, Florian Leop»
|
|
Krumpholz, Johann Baptist »
|
|
Adam, Adolphe-Charles (24 »
|
|
Tcherepnin, Nikolai (3 May»
|
|
Cherepnin, Nikolai (3 May »
|
|
Dupré, Marcel (3 May »
|
|
Huízar, Candelario (2»
|
|
Savel'ev, Boris Vladim»
|
|
Fampas, Dimitri (22 Decemb»
|
|
Kröll, Georg (3 May 1»
|
|
Harvey, Jonathan (3 May 19»
|
|
Kan-no, Shigeru (3 May 195»
|
|
|
|
|
|
|