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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote
user="zztop7"]Romy, the drivers would NOT be facing down in a properly
built infinite baffle. [/quote]
You did not erectly understand
what I proposed above, it is OK.
...
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Let's say we all have a midbass horn that plays down to 80Hz. I know some of us are special, so their midbass horn plays down to 40Hz. But still.What to do for the lower frequencies? Sealed or Infinite baffle (that's two good options). Now we need a ...
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Oh, rowuk, you have no idea how much I agree. To me passive theaters very much like ports and I hated anything which stay even remotely close to it. However, this time the entire Remedios project is is very different s s is built not based upon knowl...
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[quote user="Paul
S"]If you said anything about your 15" VitaVox in the video, I
must have missed it. What frequency range are you running them, and what
is low-pass filter? Given your prejudices, I suppose the cabinets are sealed,
so they can't...
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The Western Electric L-9 in Munich was/is an infinite baffle design. The 754B woofers are in a sealed enclosure with a front horn. There is no possibility of cancellation between front wave and back wave of speaker, so I wouldn't call it an "open baf...
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[quote user="Paul S"]You have mentioned that you want a much larger enclosure for your oops unit. I was then wondering if you aim to merely broaden and/or lower resonant response or if you planned to in some way tailor resonance as it rela...
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Hi Romy:No need to reach for your medical glossary. The medical condition that I call 'Imponderabilis Neurosis,' is only the preserve of highly disturbed individuals such as myself (Hamlet seems to have exhibited symptons which are highly indicative ...
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[quote user="skushino"]ScottL,It looks like the two pics you posted are of different systems, the first being slot loaded PP, and the second (full-system) showing a "traditional" IB. You also seem to be confirming my intuitive hunch of potential sou...
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Thanks, Josh. I looked for it and found a good link that accumulates a lot of recourses about Danley DTS-10.
http://www.avsforum.com/avs-vb/showthread.php?t=1189404
I did not know about DTS-10 but this morning I did sent to Tom a...
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[quote user="cv"]Romy, Can you expand a little more on what the issue with dipole bass is and what it does incorrectly? I'm still not sure I know exactly what you mean (and I've had a look at some of your other comments on the site).[/quote]Chris,
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Thanks, LBJ, I ma slowly getting into where I would to be in term of understanding, at least it is what I think I do. You are perfectly identified what I am shooting for: "its not a musical instrument but it won't piss me off", it is exactly what I w...
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[quote user="Romy the Cat"]fiogf49gjkf0dWell, that is kind of the end of the little midbass era. As
we begin to prepare the moving in a month I removed the Vitavox driver from
Midbass horns. The even went unnoticed in my family but I have a lot in ...
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I hooked up that old organ yesterday and listened to some stuff i remember listening to through it before. Before i get any further it's the only thing with tube amplification in the house, pp6v6 ~6w, driver is 12" Rola. My observation was that it wa...
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[quote user="rowuk"]
Impossible. A passive radiator can NOT change its tuning frequency on the fly. It is a Helmholz resonator - one single tuning frequency. It is also NEVER in phase, it is always late as it takes several cycles to ...
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In one idealistic configuration I envisaged for myself, for a situation where cost and practicality no object, the basic room shape was pentagonal, with the facets ot the pentagon curved inwards to eliminate parallel reflecting surfaces and simultane...
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My contractors who built for me the 40Hz midbass horn in my former
listening room is doing currently my infinite baffle manifold. The deals was changed,
it is not what depicted above and there is no compression chamber in there anymore.
It make wi...
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[quote user="jessie.dazzle"] Assuming one will not get anything under 50Hz (usable) from a 40Hz horn, I interpret the mission of lower-bass channels in the context of a horn system as follows….[/quote]
Hm, this is a bit tricky with bass. A pla...
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[quote user="msaudio"]Your Typical Acoustical Suspension-type Loudspeaker enclosure witch has less then 90 db at 1 watt does not belong with a horn system that starts at 110db at 1 watt, even when you ad more then 1 driver, it is still way to far...
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I was wondering: if I lose my midbass and will use for now
my bass town to do midbass then how can I introduce lower octave channel of I
want to make a room civilized? For instance if I go do 2-4 Aura drivers on
transition slope then I will end up...
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After fantasizing about an infinite baffle, I calculated what kind of structure I'd have to build (in lieu of an attic/crawlspace) and this is an obvious no-go. A more practical idea is a sealed box with two parallel ScanSpeaks per channel. This ...
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[quote user="Lbjefferies7"] Now, as for your drawing of the exaggerated port flaires, it is excessive. A port is not a horn and, from an engineering standpoint, I treat them very differently. A port is a resonator. [/quote]
Oh, sur...
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[quote user="be"] Instead of defining the ULF range from the reproduced instruments, it is much smarter to do it based on the first resonance frequency of the listening room, because the frequency response of a closed room has a 12dB/oct rise in ...
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The “best midrange comes from compression drivers”. I see somebody like Haralanov would be very much opposed to this comment. The irony is that I would be opposed as well to this comment. I would say that the best midrange at over 107dB sensitiv...
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In the linked there above “Barn Conversion - James' Project” I have expressed my attitude toward low frequency bass. I certainly not “against” bass horn it but have “concerns”. The “open bottom” concept that I invented for myself is always make me to...
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Fllowing my experiments with Injection Channel
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=4473
I have discovered recently that I was a greedy fool who should know better.
The new Injection Channel does OK as a independent single channel bu...
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I was sit today to do the calibration of my infinite baffle.
I connected my 20Hz 4th order tube crossover with frond-end modified
Yamaha B-2. The RTA did show a very easy gain exactly where should be, the
transition slope doe the magic. I rolled ...
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There is site out dedicated it infinite baffles subwoofers. I am not sure how serious they are as they use mostly metal in rubber drivers as got thrilled when “Apollo 13 takeoff, my doors move back and forth 1/2", and the frequency is below 5 hz...
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Collin,I am pleased that you found my suggestions worthwhile.
I approached the issue of your music room with two questions in mind:1- How to avoid the structural angle from interfering with the sound2- Would an enlarged room be worthwhile...
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"Gargoyle, YMMV, but I
associate LF propagation/amplification with mass; there has to be some
way to really "anchor" at least the LF driver. "Noted"I was thinking MF for
the felt and/or paper horns, although I guess you could begin with a
chi...
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Hi Roberts, Romy and others,Before this thread vanishes in undeserved obscurity, I have a question or two for you. I understand that the issue is a complex one and should be addressed with more care and paying attention to detail than I am do...
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