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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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It was as a year with a 2 major of audio events: New listening room, New Midbass horns, New ULF channel. It took almost 6 months to get any more or less reasonable sound in my new listening room, not that I was working so long on the room but rather ...
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Vitavox S2 does OK up to 12.5K ("strong, clean and in character") on it’s center but I never use this driver pointed directly to me but rather at good 20 degree off. (I hardly can tolerate any compression driver point directly to me). At my angle the...
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John, I see where you go with it. I afraid that I will not be making my drivers – I have no idea how to make them in order them to sound the way I need. I have no problem to design and to make 4" exit compression driver or to undertake a project to r...
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It is good, very good. Actually I did not expect that it would be so easy and some resentful at the same time. I was running the new horn, juts single horn, listing it here and there, trying to get a precise high-pass crossover point. The 18.5uF turn...
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of MTM arrangement of two TAD 1201 in <100 Hz Horn ? I assume they would both work in the same frequency range . Also JBL LE8 is only 89 db driver and it doesn't look like it can take any power . Difference in efficiency within the channels would ...
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KlausMartin (Azura horn ) is making for me extension to 2.75" (BC 8p21)and 1.4" for 204 Hz (altec 288c) .He also developed 550 hz horn for S2 . He understands importance of smooth driver -throat transition . It would be ready to go solution for...
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Yes, too low efficiency, even worse than Altec 515, (when loaded with small throat, in proper FLH, NOT A7 type "horn" which disqualified it also for my usage... I don't know how "colored" Tannoy would sound with properly designed...
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I am very happy that you did not suspend my account. Because i will prove to you in the future that my idea for time alignment is correct. I have only had one account with your web site, and your web forum is the only one i am a member of. Because i ...
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I was there and heard it a while and then came back the next day to see if what I heard was true... it was.I talked with Allen Sides who was there showing his speakers and having a good time. It is a 3 way speaker, It has a 1" JBL compression driver...
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[quote user="angeloitacare"]hi Pauli had already Altec horns, and comparing them to wood horns, they really sound poor. What i really doubtis if someone is able to hear the difference between high gloss finish/ high porosity surface of horns.I ...
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[quote user="Romy the Cat"]Stefano, it is funny that you have mentioned the “an old, little cinema in a small town”. I do not know if you did it unintentionally or you meant as some kind of sarcastic self-deprecated joke. What I mean is that the init...
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Well, I was there, which is more than The Cat can say. In fact, The Cat never heard a complete WE system first hand, so I'll have to take that into advisement when the expected foaming-at-the-whiskers rant.I always wonder why people would giv...
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Hi Romy ,well I appreciate the reply anyway! I have been reading your many threads and yes some on the Lowther designs but as you know your writings are a large large volume also and I havent made my way thru them all yet. As far as my room I could b...
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Hi,this is my first post. This forum seems to be the hotbed for Goto discussion of some sort but there is barely any data but only a swamp of assumptions. So I bought a pair of SG-370DX drivers with S600 horns and measured them. Here's the frequency...
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hello kids, a few weeks ago i started my hunt for a pair of speakers....i've been attached to my big system with a pair of headphones for the past year and feel its time to get some speakers to listen to music with (plus, i think my ears are now...
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Nice post Romy, you're probably right, I can't say since I've never listened to a pair of speakers that really told me "what can be done". I've always owned and listened to speakers that are commercially made, and I've had to choose among the ones th...
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Bass is what bass is and no mater how greedy audio people become with their implementations bass does not appear to obey people’s greed and lives according to own rules. I always said “if you can not do bass properly then do not do it at all”. It is ...
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Let me list for you what I think drives sound quality to me:1. In room flat response at the listening positions2. equal decay at al lfrequencies off axis3. Adequate delay between direct & first order reflections. 4. Lack of distortion, or suitabl...
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I think that most of us here consider horns to be decade devices. That means about 3.5 octaves can be optimally covered. 800-8000Hz in your case. Extending the "highs" another octave means a couple of things. If a horn is "too short" you do not get m...
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Again, I am not insisting that the material of that horn will behave like a bell so much as I am suggesting that bell-like sounds will eminate from this horn. Is the difference clear? Some of those Altec horns were textbook exam...
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Rakesh, I do not know a lot about the audio trivia. What I do know that in the world I live and I understand the tractrix curve introduced Bruce Edgar. I thought that tractrix curve was described by French. The tractrix curve is twisted and not strai...
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Jorge,With the risk of being called a moron, I actually didn´t do any calculations more than using hornresp to get a decent spl-curve.The driver properties a got from a guy in Denmark who renovates old altec drivers. The numbers probably weren´t accu...
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Thanks The CatI'm posting the pics of the build as I progress so people can see and pass on ideas, that's all. Are you suggesting you don't want horn projects shown on your site? I had earlier outlined the design, including cross-over points etc.I as...
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The closest to date I overlapped cones and horns myself was waaaay back in my time with Altec A7s. But I have since then and up to now heard many fine "hand-offs" from cone to horn, and my current project speakers hand-off cone to (very fast/short) h...
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Hi i am a new forum member and recently i built some speakers using Altec model 19 components 416-8b & 802 G. I built some 7.5 cu ft cabinets with two 4" diameter 5" deep ports this is the optimum cabinet size for the 416 i ditched the 811 horns ...
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hello everybody
I am interrested by manufacturing this type of multicellular horn and I would like to know who you would parmit the worksheet for this type of cab [url=http://www.servimg.com/image_preview.php?i=1172&u=11328848][img]http://i55.ser...
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Hi All, 103 or 103R + mass loaded SME headshell + 3012 or a 3009 + Seiki 1500 + hagerman opamp phono stage (good only with select parts and battery power) or an EAR 834 (with some mods) and some old Altec mic t...
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In our experiments, the more power we threw at the A7s, the better they worked. I heard some of the original "theater" version Altecs playing with their original "dedicated" Altec amps, and these sounded considerably better; but I never got ahol...
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I made a few calls to a few horn makers with a perspective to build for me a substitute for the horrible Altec 19 horn. While talking with people I was given an interesting lead about the guy that I did not know. He is a Canadian and his name is And...
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There are a few other ways to roll off HF: shaping and extending front chamber, playing with damping of the driver cone and so in. The Altec 515G at 220H, what the channel above? When you say that you have too much HF then how do you methodologically...
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