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Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Ronnie,
Arranging the driver in a line array is a fierily straight forward thing. Also be advised that the arrays will less likely work across a short wall, and you need to use a long wall. Generally it is imposable to advise anything as any rooms a...
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Hi,I thought on tetrodo (KT-88, KT-120, KT150) and write pentodo, sorry. Wherever the tetrodo sound were nothing special I personally find them a lot of better than solid state, that why I was asking, and these days one can have 300W with to KT150 P...
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I had a similar setup with an IB subwoofer, 2x18" woofers, behind the listening area -- also time aligned. It's works ok. But it will excite the entire house structure if you play loud -- you can be sure. Everyone will feel it. But that's not the iss...
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[quote user="Romy the Cat"] noviygera wrote:p.s from my experience of having a 500 sq. ft. listening room with 7 ft. ceiling and having two 18" woofers in a infinite baffle configuration, it is not enough to pressurize the room. I am talking about lo...
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well fine, my X350.5 does 50 watt class A, and of course in push-pull. I use it with 120 watt max rated 3 way speakers of about 87 dB efficiency. You can see on the 350.5's centre instrument dial if you go out of class A. If I go out, I usually fear...
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Have you tried taking a measurement with the line arrays moved to the rear of the room? (ideally, the same as the current distance from the listening point, but behind you).If you can do this, and if the result is a more gentle curve, consider bass e...
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[quote user="unicon"]
that old sails does just control <1khz reflections ... you need to control your mid bass n basic bass frequencies first. [/quote]
I guess you meant >1khz reflections? Yes, it will and it is erectly what I am loo...
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I never heard the Vacuumstate. A pair of 300B in the “differential SET” application… Hm, would it sound different then a regular 300B? Juts kidding… The last “SET tandem” that I head was with a pair of 6C33C in “differential SET” pushing 45W. The amp...
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Romy, whether intentionally or otherwise, "murky waters" is a beautiful metaphor for the Western Electric route, in my experience; that said, just because something does not exist, does not mean that I might not be made so with a less hidebound a...
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Dear All,I wish to commence gathering the components and finding the craftsmen necessary for my DIY speaker project, but wished to bring my proposal before this forum in order to establish whether it's intrinsically worthy, and whether any simple imp...
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[quote user="Romy the Cat"]I do not understand what does it mean. Are you saying
that you lost bottom response with closed exit hole on the driver back? If with
the closed drift from back you have a (loaded!) response no lower than 200Hz then it i...
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[quote
user="martinshorn"] Indeed you sound a little racist, but i think we all have our prejudice. [/quote]
I do not think that it is racist
in any way or form. Racism is a prejudice against a race in my case it is prejudice
and historic...
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[quote user="Romy the Cat"]audiofilofine, you need to form a question in a format that would indicate you do the your do some homework. To bulb or even to design 20Hz horn is complex task and it usually made to the specifics of the given circumstance...
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[quote user="Romy the Cat"]I, looking at my “7 reasons” do have a preference to sealed boxes. I do not believe in accuracy of bass horns, particularly in context of system integration.[/quote]What made you change your mind?...
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Hello,you wrote:"The idea of two (or more) differing drivers covering the same range is intellectually very attractive with respect to tone, and maybe efficiency, as well. "What do you think about:double horns with different driverwith membran movem...
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Oddly the seller has removed the images of the wood horns as well as the mid bass compression drivers. They are still illustrated in the plans. Great looking horns. Perhaps he sold them. They where 150 to 5k drivers. I think Jeffery Jackson probably ...
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The initial post of this thread was posted in Melquiades forum, then I moved it to Playback Listening forum and I think now I need to move it to Horn Forum. Tax, I would like to rename the thread into something more characterizable, not the “OPT...
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Here's how I will initially position the mid bass horns. The imaging is excellent....though I give a little away in dynamics. The 12-inch B&C drivers kill the puny 8-inch Fane drivers for this application. Well done John Inlow for this design. I ...
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In response to Romy's request re drawing, Here's a rough sketch to scale of the three-way.Not shown, two folded tapped horns with will sit at either side of the mid bass horns. These won't be large...30/35Hz to 100....
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[quote user="Jorge"]Hello Anthony,I did experiment with metal tubes for bass in a sealed configuration as you are planning. The weight of them, even made out of thinner than you would like steel, is prohibitive. If you make them out of aluminum pipe...
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Yes, I should have said modular like your bass horns, but with much smaller segments, e.g. 36 segments of 10 degrees. Assuming one keeps the profile the same, the only difference between different sized horns is scale, so a single mould "capped" at v...
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Romy,
More to come soon but a couple comments regarding bass horns ( and one on Tractrix horns ) :
The Edgar Seismic subwoofer ( 18" JBL E155-4 hyperbolic-exponential folded horn, 40 Hz Fc ) works very well in my room - much better than the 1...
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I think the usage of Romys Injection Channel has misguided you to think it was implemented because of a certian lack of tone or some sterile sound, nothing of the sort, I cannot blame you for not having listened to Romys system, but theo...
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jd, I cannot see any of PDF files, probably my current networks kills them.
I do not know the AK150 drivers. I know AK157, AK151 and K15/40. If they have significantly lower free-air resonance, at 30-35Hz then I am not sure that they would be ...
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I heard the Everests recently at the Munich Hi End show, unfortunately they were being used in an active vs passive display/dem , you could tell when the Everests were playing as the active speakers had a sound like an inflated balloon being rubbed w...
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[quote user="Paul S"] Some of those Altec horns were textbook examples of both types of bell-like resonance, where the body of the horn itself resonated and certain bell-like artifacts were created/amplified by/in the horns' mouths. [/quote] Hmmmmmmm...
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Romy wrote:"...The material itself – what to use. I am wide open from any type of wood to synthetic panels (like cement panels). Perhaps it might be a combination of organic and synthetic layers..."I realize you won't be doing the work yourself, but ...
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I have been playing around with speakers for a long time, and things started snapping when I got into horns. I have a system right now with an upperbass horn from 140 hz turned form MDF up to around 700 hz, to another horn, and another and a super t...
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Thanks, Wojtekm it sounds like interesting experience. I would mention that you use K-horns and with them the loading would be much more capriccios then it would it be with stand-alone infinite-baffle bass section. Did you seal the space between the ...
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I note English Mfgrs tried low power ribbon Midrange horns in the 50's (Decca, Kelly & Quad also made one!).These were probably inspired by the hi pwr prewar? Klangfilm ribbon horn (would like to hear one of those!) But, after Peter Walker moved ...
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