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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="jessie.dazzle"] You might be able to get away with a bit less; if I remember correctly, my calculations at the time (based on the above driver) yielded a theoretical ideal volume of something like 23 cubic feet (sealed), so still not...
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[quote user="zanon"]My room is big … So how to measure it's size? Just write in floorplan of the entire house.[/quote]
I do not think that we need to measure room size but we need to understand the acoustic consequences of the room size and to...
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[quote user="jessie.dazzle"] I'm not entirely satisfied that this single 40Hz horn was properly loading the room, which has a cubic volume not far from what I would consider ideal for such a system …. However, the horn was sitting in the center o...
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First of all, season's greetings to all. I have been thinking about this issue for a few months now and was reluctant to post a question in case it was premature! There must always be some niggling doubt whether any real estate adventure will materia...
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Posted on behave jessie.dazzle as his Mac has problems to upload the images, The images and text are his:'************************************ end ******************************
Here are some illustrations of a proposal using a removable trans...
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[quote user="jessie.dazzle"]I completely agree, and will use the driver that sounds best with a 40Hz exponential horn. I have both versions of this driver, and have listened to them both in an A/B situation, out of the horn; I remember noting the...
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[quote user="jessie.dazzle"]I could not agree more. Above a certain price point, another thing that should be standard procedure is what Lamm has been doing since day one; and that is to establish a file for each component made, recording whenever p...
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[quote user="jessie.dazzle"]I've been listening for about one week now with the filters set so the hand off from lower-mid to upper-mid happens higher up (upper-mid S2 is high-passed at 4800Hz instead of 3200Hz), meaning the small 400Hz horn is doing...
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Yes, I was not able to decipher right the way why they did it. My initial feeling was that they made PROPER horn and use a PROPER driver and then, because the approximation of cut off to horn rate they had audacity to cut off the response on the horn...
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[quote user="jessie.dazzle"] I don’t have a pair of Melquaid DSETs. I drive the horns with a pair of Lamm ML2s, running full range. I use a second pair of M1.1s for lower bass. The ML2s are hard to fault. In fact at this point, I can only find positi...
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[quote user="jessie.dazzle"] I might be totally wrong, but I just assumed that Vitavox's decision to specify a lower impedence voice coil for horn-loaded applications was related the additional load placed on the driver once mated to a horn, resu...
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[quote user="jessie.dazzle"] Romy wrote:"...Let pretend that you play a normal some kind of horn with a lot of air in it. The air drives the driver impedance down..."I'd like to understand this; correct me if I'm wrong:As soon as the membrane of a ho...
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[quote user="jessie.dazzle"] Once I am done with more of this project, I will make a 330Hz Tractrix to try in place of the upper mid 400Hz. [/quote]
Hm, I wonder what would be the purpose to make 330Hz horn for you if you have 400Hz and a dedicated ...
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[quote user="jessie.dazzle"]"Horn default position"; do you mean from the listening position?"Perpendicular wall"; please define relative to the firing axis. [/quote]
"Horn default position" – the position where it will be sitting normal...
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[quote user="jessie.dazzle"]I realize the question as to how you will get mid-bass (horns vs other solutions) is still open.
If you do go ahead with horns, you should be able to make them so that they'll accept most any 15" driver, which means...
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[quote user="jp"] I assume a simple hole sealed with silicone would not suffice given the amount of pressure build up in the rear chamber? [/quote]
The pressure that builds up in right rear chamber is truly enormous.
[quote user="jessie.dazzle"]… a...
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[quote user="jessie.dazzle"]Have you ever tried the Community M4? I'd still like to try this driver.[/quote]Yes, I think we had a convesation about in the “The Macondo’s Upper Bass Channel: what is next? “ thread, I have linked it to current thread. ...
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[quote user="jessie.dazzle"]….. sit back and conclude that, yes, damn it, a pair of good straight Mid-Bass horns is exactly what you need. My reasons are of course somewhat selfish... as I won't like being alone in needing a non-digital delay solutio...
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[quote user="jessie.dazzle"]As for balancing the amplitude between channels by driving them from different taps: I drive the upper bass horns form the 16 Ohm taps, and everything else from the 8 Ohm taps. An 8 Ohm versoin of the upper-bass driver...
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[quote user="jessie.dazzle"]
Romy wrote : "...if you outsource the job of making your 40Hz horn then what price you feel would be reasonable to pay for the pair?..."I will take the question to mean the price it might cost to pay someone to&nb...
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[quote user="drdna"] What was more concerning is today some 60 Hz hum also re-emerged in the system, sounding like a vibrating cell phone going off in the back of the room. It was interesting how it was sort of localizable, but the hum is annoying. A...
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[quote user="msaudio"]Putting The Mid Bass horns behind your head will not work. This thread was about Mid Bass Horns Project, do you thank you will be able to use any frequency above 80 cycles with rear fired horns that are behind your head? Tha...
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[quote user="jessie.dazzle"] In the few converstaions I've had with him, Mike seems totally sincere and, as I've mentioned before, I very much hope he will one day come through.[/quote]Oh, sure, Mike is perfectly sincere and this is BTW might be ...
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[quote user="jessie.dazzle"]In this case, below 50Hz, I think el`Ol is right to suggest that you consider using DSP as a permanent solution. The SMS 1 is in theory the silver bullet... You just need to find out if you can live with it long-term. Be...
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[quote user="jessie.dazzle"] "...Horn installations are ugly from female perspective..."
Yes, and this type of woman is, from my perspective, as interesting as your average cabbage.... [/quote]Well, believe or not but they can live together. There i...
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[quote user="jessie.dazzle"]While reading of your progress on the 6 channel amp, I was thinking ahead, and how I might approach the building of such amps as separate projects for each frequency band (separated physically as well). In my particular ca...
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[quote user="jessie.dazzle"]Be sure to connect the chassis of only ONE audio component to the dedicated ground, allowing the other audio components to source ground via the interconnects.[/quote]
I am very convinced that in Adrian case he has more t...
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[quote user="jessie.dazzle"] "Short the ML2’s inputs and the hiss should be gone"
I assume it is not a mistake, and that you mean short the unused input on each POWER AMP (as opposed to the PREAMP).
(I am currently using the XLR connections becau...
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Romy wrote :"...The table on the picture above is very good but it is $180 each. It will be my way out if I do not found anything beter..."Romy,
$180 does not seem expensive for such a table; for that price it is likely to have been "Made in China",...
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[quote user="jessie.dazzle"]… This brings to mind the time I tried walking during a fairly serious earthquake, or trying to write a letter while riding in a car... [/quote]
Actually it is very good association. In Zaratustra amplifier bias was made ...
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