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Read the Post in new Window Read the Post in Threaded view  Post #21: The Japa-Brazilian horn upper bass horn by Romy the Cat on 2007-03-04 
Browse the content of the threads in new Window  Thread: The Ridiculous Japa-Brazilian horn. in Horn-Loaded Speakers  54 Replies 
Actually if that horn would not be bending atop, go for another couple feet vertically, consequentially has a smaller throat and of course has a strong back chamber then it would be a very good J-horn (presumably that the walls and joints are not res...

Read the Post in new Window Read the Post in Threaded view  Post #7: K-horn mid bass sucks and no upper horn will correct it by Wojtek on 2007-08-22 
Browse the content of the threads in new Window  Thread: World's Finest Sounding Audio Room in Audio Discussions  16 Replies 
I liked your previous post . A week ago I repaired old Telefunken tube radio (Single EL84 with array of alnico speakers ) with FM band and I'm listening to classical public radio for whole week. Not even once I had desire to turn on "big" system I'm ...

Read the Post in new Window Read the Post in Threaded view  Post #79: 42Hz upper bass horn by Murataltuev on 2015-09-13 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
Quite ugly, ah ? :) ...

Read the Post in new Window Read the Post in Threaded view  Post #50: Upper Bass Horn Setup by Jorge on 2011-08-04 
Browse the content of the threads in new Window  Thread: Basic guide to advanced audio in Playback Listening  62 Replies 
The best midrange comes from compression drivers, it has that minuteness, transparency and dynamics that no other topology can offer; the main problem with them is that they only cover a very specific mid frequency ran...

Read the Post in new Window Read the Post in Threaded view  Post #38: On A Mid/Upper Bass Horn by Dresden on 2008-11-08 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to defy the laws of physics...

Read the Post in new Window Read the Post in Threaded view  Post #1: How to select mid/upper bass horn drivers. by Romy the Cat on 2009-08-25 
Browse the content of the threads in new Window  Thread: How to select mid/upper bass horn drivers. in Horn-Loaded Speakers  0 Replies 
[quote user="Romy the Cat"] A few years back I wrote somewhere that I “developed” a semi-mathematical formula according to which an acoustic system’s result might be absolutely objectively weighed up. I did not go very far with advisement of this eq...

Read the Post in new Window Read the Post in Threaded view  Post #141: Too low resonance problem of the upper bass horn by Murataltuev on 2015-10-26 
Browse the content of the threads in new Window  Thread: Another time aligned 5-way horn project in Horn-Loaded Speakers  189 Replies 
Romy, thank you very much for very detailed explanation of your horn theory.Let me present some doubts about it. From physics basics when we have more than one springs (suspension, throat resistance, back chamber) we can consider it as one spring. Th...

Read the Post in new Window Read the Post in Threaded view  Post #2: Le Horn - really Upper bass 115Hz Horns by oxric on 2011-08-26 
Browse the content of the threads in new Window  Thread: Rakeshorns in Horn-Loaded Speakers  33 Replies 
Hi everyone,It is quite ironic that the day I hear from Fane telling me that the Fane 8Ms are finally ready, I should receive this update from my horn maker maestro. Russ Collinson of Layers of Beauty. Russ, if you ever read this here, please take a ...

Read the Post in new Window Read the Post in Threaded view  Post #42: On Mid/Upper Bass Horn Design by Dresden on 2008-11-11 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
I understand your point of view concerning 'vintage' in comparison to 'contemporary'.  What I find the most troubling with many of the present/contemporary attempts in design is that many people claim to have a truly horn loaded system capable o...

Read the Post in new Window Read the Post in Threaded view  Post #46: On Objective Of Mid/Upper Bass Horn by Dresden on 2008-11-12 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
I concur the objective to acquire performance in the desired frequency range must predominate most other considerations of design.My objective for the design of the mid/upper bass horn is to attain effortless, smooth, real-world horn-loaded response ...

Read the Post in new Window Read the Post in Threaded view  Post #15: Tractrix vs. Exponential curve for lower frequencies. by Romy the Cat on 2007-08-06 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
[quote user="guy sergeant"]One issue that I would consider is that the Tractrix profile supposedly does not lend itself aswell to extremely low frequency horns (being too short) as other profiles in particular the Hypex (Salmon) shape. [/quote] Yep,...

Read the Post in new Window Read the Post in Threaded view  Post #104: Oval upper-bass by jessie.dazzle on 2009-08-01 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #1: How to select mid/upper bass horn drivers. by Romy the Cat on 2009-08-25 
Browse the content of the threads in new Window  Thread: How to select mid/upper bass horn drivers. in Horn-Loaded Speakers  0 Replies 
[quote user="Romy the Cat"] A few years back I wrote somewhere that I “developed” a semi-mathematical formula according to which an acoustic system’s result might be absolutely objectively weighed up. I did not go very far with advisement of this eq...

Read the Post in new Window Read the Post in Threaded view  Post #1: Problems with horns: upper bass by Romy the Cat on 2005-03-25 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
This there is the last in the “THE PROBLEMS WITH HORNS” cycle. The previous threads might be found at: Problems with horns: tweeters.Problems with horns: mid-range horns.Problems with horns: mid-range drivers. This would be probably the most contro...

Read the Post in new Window Read the Post in Threaded view  Post #1: The EdgarHorns: the new old business plan by Romy the Cat on 2005-09-15 
Browse the content of the threads in new Window  Thread: The EdgarHorns: the new old business plan in Audio News  17 Replies 
Bruce Edgar, the founder and designer of California-based EdgarHorn Loudspeakers, recently announced that he discovered a new relationship between his business plan and rules of physics. According to Bruce:  “The physics of sound reproduction th...

Read the Post in new Window Read the Post in Threaded view  Post #164: Upper-bass sweeps by jessie.dazzle on 2010-03-06 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Since having replaced the 16 Ohm drivers in my upper-bass horns with 8 Ohm versions of the same driver, I gained enough upper-bass output that it is now possible to run all horns from the 8 Ohm taps (I was previously running upper-bass from the 16 Oh...

Read the Post in new Window Read the Post in Threaded view  Post #6: Responses to Romy Paul & Ronnie by jessie.dazzle on 2007-08-05 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #1: Problems with horns: mid-range horns. by Romy the Cat on 2004-07-21 
Browse the content of the threads in new Window  Thread: Problems with horns: mid-range horns. in Horn-Loaded Speakers  8 Replies 
Ok, I blamed the tweeters and MF drivers now the turn of the MF horns. The Mid Frequency Horns (I’ll them “MFH” from now and on) are the stinky like pieces of horn installations, and if they are not done correct then they screw up anything big time T...

Read the Post in new Window Read the Post in Threaded view  Post #7: Do you have better sweeps? by Romy the Cat on 2007-08-31 
Browse the content of the threads in new Window  Thread: The Edgarhorn RTA response. in Horn-Loaded Speakers  7 Replies 
[quote user="skushino"]"The top response of the upperbass channel is challenged. I do not know why it is – a wrong driver, a wrong curve in J-horn or wrong made filter… " That sweep mirrors what I hear - specifically tepid and weak upper bass in the ...

Read the Post in new Window Read the Post in Threaded view  Post #17: With Pavarotti I always want to cover my ears.... by Romy the Cat on 2005-12-02 
Browse the content of the threads in new Window  Thread: Loudspeakers and headphones in Audio Discussions  25 Replies 
[quote user="Ronnie"]I wish I could pin-point the frequencies and explain the effect better. I'll do my best.I want to cover my ears when a Pavarotti sings certain higher notes or some notes when Caballet sings pretty "comfortably".It's like bad PA h...

Read the Post in new Window Read the Post in Threaded view  Post #45: It is also depends of what you are looking for. by Romy the Cat on 2008-11-12 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
There are very many totally not predictable things in bass horns; I would not go into enumeration of them – what the point? However, keeping the thread in context if it’s subject I would note that the objectives and reference points of the horn owner...

Read the Post in new Window Read the Post in Threaded view  Post #14: Let return in this thread to 5-channel Milq... by Romy the Cat on 2006-09-04 
Browse the content of the threads in new Window  Thread: 5 Channel Version of Melquiades in Melquiades Amplifier  21 Replies 
[quote user="jessie.dazzle"] There may be better drivers out there, but with my level of experience, I doubt my abilities to recognize them. So though it may resemble laziness on my part (remember, this is the same person that will be constructing a ...

Read the Post in new Window Read the Post in Threaded view  Post #1: The Macondo’s Upper Bass Channel: what is next? by Romy the Cat on 2007-10-28 
Browse the content of the threads in new Window  Thread: The Macondo’s Upper Bass Channel: what is next? in Horn-Loaded Speakers  30 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #2: There is no such a thing as optimal distance by Romy the Cat on 2012-07-26 
Browse the content of the threads in new Window  Thread: Upperbass horns – tone vs. distance in Horn-Loaded Speakers  4 Replies 
[quote user="haralanov"]I think it is very interesting subject and I’m looking for first hand opinions by people, using properly sounding upper bass horns in their listening rooms. I’m not interested in theoretical opinions – only by opinions, co...

Read the Post in new Window Read the Post in Threaded view  Post #14: Kerry, let look a very little more seriously. by Romy the Cat on 2005-03-27 
Browse the content of the threads in new Window  Thread: Problems with horns: upper bass in Horn-Loaded Speakers  109 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #2: Not Romy's but your horns by Romy the Cat on 2005-04-14 
Browse the content of the threads in new Window  Thread: Romy's Horns in Horn-Loaded Speakers  3 Replies 
[quote user="TonyB"]Romy, what are horn flare frequencies of your horns? I understand that both are Tractrix. My guess is that the midbass is 125Hz with a sealed rear chamber and 4" throat. Correct? [/quote]They tunes for 115Hz and pushed in room dow...

Read the Post in new Window Read the Post in Threaded view  Post #6: Edgarhorn Upper Bass by skushino on 2007-08-31 
Browse the content of the threads in new Window  Thread: The Edgarhorn RTA response. in Horn-Loaded Speakers  7 Replies 
"The top response of the upperbass channel is challenged. I do not know why it is – a wrong driver, a wrong curve in J-horn or wrong made filter… " That sweep mirrors what I hear - specifically tepid and weak upper bass in the presence region betw...

Read the Post in new Window Read the Post in Threaded view  Post #46: Back to the UBH by Jorge on 2011-08-03 
Browse the content of the threads in new Window  Thread: Basic guide to advanced audio in Playback Listening  62 Replies 
I guess you cannot say you listened to a horn system if you dont have an upper bass horn.The upper bass horn has to fill in the response from the compression driver down. At this delicate range nothing will perfectly macth it but another front horn. ...

Read the Post in new Window Read the Post in Threaded view  Post #70: Meanwhile, back at the lab... by jessie.dazzle on 2008-07-08 
Browse the content of the threads in new Window  Thread: Jessie Dazzle Project in Horn-Loaded Speakers  172 Replies 
Well a scepter or a baton... Last night before setting up the RTA, I listened to a recording of orchestral works from Strauss (Kempe conducting)... It was early enough that I could "air out the system" a bit. And Ok, maybe I don't have all ...

Read the Post in new Window Read the Post in Threaded view  Post #19: More about the Japa-Brazilian horn. by Romy the Cat on 2007-03-03 
Browse the content of the threads in new Window  Thread: The Ridiculous Japa-Brazilian horn. in Horn-Loaded Speakers  54 Replies 
Merlin, I wonder why you need more information if according to you: “the solution that has not been heard and is not intended for your ears”. You migration from sightless denial to desire of self-education  is very… I would say fast but  st...
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