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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Of course we do not defend or support a given topology itself but we only wrestle with the results we are able to get from it. Right? But perhaps there are some basics we can agree on? Basically, if it's Tone you are after, you are swimming upstre...
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Gday was thinking about buying these for a mid bass horn or may be a bass horn one day. There in terrible condition other then I think they have two real vitavox cones in them even though one has been replaced. Note the crack also. But t...
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[quote user="oxric"] So, yes, in an ideal world, I would have seriously considered doing something different….[/quote] I guess your definition of “doing something different” would imply reading of 534 pages of BS from people who have no idea about ...
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[quote user="jessie.dazzle"]Assuming situation 2 is possible, receiving mid-bass primarily as reflected sound, one would have to take into account the reflected path of that sound, and how it describes the mid-bass part of the image, relative to the ...
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Since I last posted there has been some progress to my indoor and my outdoor systems. Indoors I have added a pair of tapped subs. I must say that I am quite happy with these. Of course they are not as good as full size front loaded horns but still a ...
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Chirag, First off all you have to define what do you want from them. If at this moment you’re looking for something within $700 then very next year, when you finish you medical school you will be searching in very different price range… :-) Now a lit...
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Romy, You make all very good points. I probably shouldn't call the front of the driver a phasing plug, because actually the long wavelengths really don't care much about the shape of the exit, they will just pass right through...
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You have identified the tricky parts -the transistion between the front and back horn as well as the throat of the front tractrix horn. A one to one throat with the front horn works best with my coaxials and a short 1.25" straight 'ring' ...
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[quote user="js"]Could anyone please advise me as to the recommended rear chamber volume for a Le C'leach horn with a throat of 240cm2, mouth of 7089cm2, length of 47cm, cutoff of 160Hz, T of 0.8? I'm thinking of using a Beyma 122Nd which has a sd o...
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[quote user="jessie.dazzle"]For your rear chambers, as they will be adjustable, it would be smart to go with a max volume that is larger than the max you estimate to be necessary. [/quote] The size of rear chamber is something that dials in the compo...
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Moreart, Since you are soliciting public opinions then I would like to say that I very much do not like what you do. Calculate the area of your horn mouth and you get up to what region you have equalization from horn. Everything else is a regular di...
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The best hi-fi LF I have heard came from modified "pro" units (multi-15s) that had a LOT of power thrown at them; and furthermore, the system was "managed" by an... equalizer (albeit, done in real time...). This is not to speak of its FR performance...
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So, you use DCX 2496 for deals but not for crossovering and your crossovers are still on analog domain, right? Romy, I do everything in the digital domain so I use DCX 2496 as my crossover as well (but analog SS pro amps). I know you're no big fan of...
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Well, you see, the outer dimensions of the mouth of cause an indications of low end response and by objective evaluation of it is easy to estimate horn’s bass numbers. However, it is very far from “sufficient” assessment. A few years back I completel...
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Yes, the Dresden’s talk about 40Hz horn and 90Hz horn as the similar horns, particularly if he does not want to "cheat", stroked me as odd too. 90Hz horn is a nice a manageable 40” piece of furniture. The 40Hz is the monster in a house and a good rea...
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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...
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Thanks for the thoughts,I was just on the phone with a guy who sells prototyping materials; we discussed the idea I had this weekend... His opinion is that it should work. If so, it will really make the process much quicker.Romy wrote :"......
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[quote user="Johan Dreyer"]I call this the "pulsating room effect" Here there is a sensation of the air in the room actually pulsating to the sound.This is not boom but a sense of sheer energy being transmitted.Unlike music simply being played way to...
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Hi jd*thank you for caring, and encouraging me to wade through all of this horn info. I'm 63 by now, not sure if I'll ever get out of there alive before I'm done though...Romy posted some picture about a commercial horn (Western Electric WE15) th...
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Hi Paul,I'm really not sure how else to explain it, but essentially it is "free air". The driver does not become influenced by a defined amount of "trapped air" in an enclosure, thus, it pretty much maintains it's free air specs. In my case, the driv...
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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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Re: the guy from “Enjoy the Music :Nice to finally see this. Romy wrote:"...Do not forget that I have a LOT of mid-upper-bass tool in disposal. I have 6dB extra in my current upper-bass horn and I have high-pas my injection channel at 120Hz…"6dB extr...
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Stefano,
I do not have any strong objection regarding to what ALE do. Bent bass horn are more evil then straight horn but considering the small throat of the ALE drivers and their desire to make it to work low the length of the horn become to...
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Romy, thank you for your thoughts. First off, my further thought on the system and specifically the implementation of the high freq section: Yes, the time alignment would be a challenge but possible. This is the main compromise, in my view but the le...
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I need to care just one octave at my 25Hz bump,I have tried the same solution in a big room, the thing is that we not only got output at 25 hz, but a lot also at 50 hz! There was no way surgically cut it to what we needed and the result was it messe...
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Too late now for points, but just the other day I tried to imagine your plan. and I was pretty close.Actually, it is a bit like what I have going now; 15" Eminence bass guitarr woofers in a sealed 3 cu ft cabinet,Oris 150 with 8" B&C midrange dr...
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There was some kind of hi-fi show in Gernany and it looks like Cessaro showed off a new version of Gamma. They look like change the frame. I really do not like what they look now. They look heavier with new frame and much less elegant. They looks lik...
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[quote user="Markus"] ….other people had tried to make sense of your construction and pointed out that your interpretation is wrong.[/quote] I do not think that it is an honest argument. The “other people” is never an argument as it immediately brin...
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[quote user="noviygera"]My mid/upper horns play down to 190Hz. That is -- 188Hz is the Fs of the mid. It's a horn loaded a 10" Precision Device driver. So I need a section (or two sections) to cover the bottom (below 190hz). [/quote]
Herman, i...
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Haralanov, it had to say, I think it would be all depends how he use that MF driver. Do not forget that this MF driver, I still insist to call it Lowther has very extended HF. That is different type of HF that is coming from “cigarette filter paper”....
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