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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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El`Ol wrote: "...And what about the brute force method (room correction for the bass arrays)? [Digital EQ]..." Romy wrote: "...Actually I am considering something like this... I think the final result might use some of your limp methods but the EQ O...
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[quote user="Jorge"]
For some reason I cannot post pics, they wont upload to the server so I cant select them.The way Aurios work is with 3 ball bearings rolling inside a round chanel, something like an inverted doughnut...top and bottom.On the cen...
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I have no idea what that all about but it is nice to know that my taxes goes for somebody building horns. "The Reverberant Acoustic Test Facilit (RATF) chamber is located within the Vibroacoustic Highbay, taking advantage of the 1.8 m (6 ft) thick su...
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Romy wrote:"...I will most certainly do not need it to go over 1000Hz, why would I? It is very much not my objective. All the I would like to do it to give to Fundamentals Channel some room from the bottom to breathe..."Three reasons:1) To try hi...
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[quote user="Paul S"]
The more-driver/more-power method has in fact been used to very good effect in rooms that +/- eat bass. The set-up I remember had about 8 515s per side and LOTS of power that I suppose it did not actually use very often; but...
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So first in line, the horns. They stressed out that particularly the horn flares where not within the comfort zone of their own developer team.That triggered the recruitment of Bruce Edgar. The design is only his, and they took it 1:1. Of course too...
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I wonder, if to embrace the idea that I described in the Maturation Shields article (a few posts above) then how those external horns might be constricted?
They need to be solid and not to be afraid of sun/rain/snow. They need to be acoustical...
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Dear Romy and all,
I’ve been lurking here for a few months and - after a sceptical start! - I have found this site an Invaluable Help. Many many thanks to Romy and all involved. My system is now starting to sing and make nice noises for the first ti...
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Actually the way how I feel
now it is not about best material for horns construction, or not even the best profile
for the horns opening but rather about best results despite of materials or
profiles. Lately I am not looking for the things that wh...
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Well, in context of a full-range speaker, like largest Wilsons or the similar, the answer would be unquestionably no. Even if we biamp those speakers then the LF still is too wide bandwidth and too geographically bind to the MF section. The wor...
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[quote user="Romy the Cat"]
RF at Ona wrote:Personally, I think it debatable whether the mouth edge should be free or attached as there are desirable aspects to both approaches. If attached, it need not be attached with great pressure. Robert, ca...
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[quote user="rdrysdale"]So how do you suppose the proper DPoLS can be located? With a system like Steve Schell and I are working with, everything weighs hundreds of pounds and to properly evaluate changes would take days, maybe even weeks f...
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There is not enough mass there for a 200Hz ring. I don't know what you are hearing, but you need to go back to whoever built these things and tell them your stories.
If you really believe that the horn is ringing, add mass, ...
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Those materials may be interesting to be used as finishing/primer to avoid degradation of the (polymer) concrete horns. And at least one of them can also be applied on wood.
I, of course, do not have idea how any of those product...
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Anthony, yes, it is a perfectly legitimate question and I asked
myself this question many times. I do think that if you make horn from wood
then heat will damage them but if your upper bass horn is from concrete (like Jessy did) then it does open ...
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[quote user="Paul S"] 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...). [/quote]
They...
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[quote user="Marc HENRY"]hi all,
thanks for your interest !
yes the frame is curved, HF and MF are //
yes there is a phase plug in the bass horn. This cover 80-300Hz.
there is a separate infra-bass section, covering 20-80Hz.
images of the bass p...
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Audio and Music: four levels of unity and separation or… ...or a short and slightly dipped into Dostoevsky essay about Audio inevitability in case of …an Audio progress. K???? ? ??????? ?? ???????????? ?? ??? - ?????? ?? ???:O?? ?????? ??? ?????...
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What would be a better material for horns, specially large ones, steel/aluminum or polymer concrete? Do metal horns be the right choice in general?
I just remembered I could ask some favors and have large steel/aluminum horns mad...
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Paul S wrote :
"...Jessie, you know I am not a horn guy. I played with horns for 5 years, and I have heard plenty of them, and so far none have worked for me, musically. But I have remained mindful of horns' potential, and I keep coming back ...
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[quote user="RonyWeissman"]The electricity comment is interesting as today I put on some jazz music and the HF is very snappy, excellent! I feel like posting on AA to ask people's opinons if it's the electricity or if my concrete horns are going thro...
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[quote user="Jorge"] You can become that which you most hate: a Reviewer![/quote]Actually to review audio products is not something that I would hate but it I has to be only on my terms – the condition that certainly does not exist and would not...
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Hello all,Some time ago, I bought a pair of very early production ML2s for an ongoing horn project (see "Note at end").Rather than just let the ML2s sit and wait for the horns to get done, I of course tried them out with my "normal" 89db/watt@1m spea...
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Romy
I think what I gained from the basshorns were 1. "Speed"or lack of momentum.Specifically deep notes on piano.The sensation of that leftmost keys with the initial impact then followed by the resonance from the instrument as separate entities.I...
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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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[quote user="jessie.dazzle"] I have 2 ULF "boxes"; each has an 18" McCauley 6174.
The enclosures are sealed and each measures 14 cubic feet. They are made from 70mm thick concrete blocks.
Power is from a pair of M1.1 amps (100 Watts each)....
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Last night I was experimenting with integration of ULF and midbass and was playing relatively loud. The ULF woofers is at second order at 35Hz and the were located outside of my listening room, in the next room with a large wale between then, but...
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[quote user="steverino"] Romy said "When I had my magnetic and EMI probes running with open PP2000 cover then the probes showed me that I was in the middle of Chernobyl Black Forest. I think the PP3000 even more poisoning..."
Now I begin to u...
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I see some posts predicting that the use of bronze for the Mid-Range horns (see photos above) would result in ringing... Well, I respectfully beg to differ; I think this is one area where the designer may have done well... Too bad he polished them.
...
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First off, I forgot to mention an interesting observation: Before running the sweeps (previous post), since the drivers in the upper-bass horns are new, I decided to verify/optimize rear chamber volume (they are easily adjustable)... I wasn't expecti...
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