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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy, Radian 475be performs best over 2K. It has some distortion around 1700 Hz. I think in general that 1 inch drivers should not be used lower than 2K.I understand your point that the practical implementation is more important than a "best practice...
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I have tried both simple, "FR" drivers and multi-ways, and I think you are on to something with the "simpler presentation". As a generic example, think of the "cult" "FR" drivers driven by cult SETs, playing cello music. I have gotten goosebumps from...
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How does the SPL/dynamic range correlate to frequency? Most of the old 10" drivers can play louder if not pushed down too far. I think as the years passed, the Tannoy had like most similar drivers a sort of "sliding scale" dynamics, and they would pl...
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Bill, I had an issue like you described with your right speaker that I FINALLY traced to a "cold" solder joint in an RCA plug, on the amp end of the right pre-to-amp IC. To my ears, the old paper drivers are very, very sensitive to their "surrounding...
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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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Haralanov, let me know if you actually have something, otherwise I will continue with the Audaphon ribbon for the first round of the downward-pitching exercise. On the one hand, I wish I'd kept the Peerless 2" paper tweeters I had; on the other hand,...
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No love lost for any particular driver type here. They are all all-but-hopeless, as far as I'm concerned, just for different reasons.Jesse, what I wonder is how the small daiphragm of the compression driver, with its very small movements, can b...
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DSP?!? But aren't there plenty of realtime options, from Marchand, etc? Hell, people are generally so excited about digital that they are pretty much giving away the analog boards.No doubt you've considered that the 2105s simply might not...
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Romy, I suspect that 200 Hz high-pass will be too low for that driver, even 2nd order, and almost certainly with just 6 dB roll-off. I think more like 500 Hz with 1st order, and might still require the coil.Yellow-type drivers take on and ...
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Hi Romy,
Give the ribbons a try http://www.e-speakers.com/products/beengineering.html. These are too expensive I think but believe me the sensitivity is real. The best part is also that the impedance is very flat and an easy amplifier l...
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The point of the field coil is to saturate the piss out of the magnetic circuit so that the coil flux does not modulate the motor. Romy, I suspect that your experience of them may be based on an older drivers where saturation was not the name of the ...
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Serge, it is a common misconception that the old Altec cinema/PA systems were lovingly built and installed with tubes or high-fidelity "music playback" in mind. In fact, they were meant to be LOUD and durable sound reinforcement tools, while maintai...
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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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I have the CD but didn't get a chance to listen to the B9 effects you mentioned yet, but all the 515Bs and 15" Vitavox I have heard were in larger vented boxes. I think of the dryness you told of as part of pushing a paper driver down in a sealed box...
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By the time I realized (last year) that I'd kissed off 2016 a year early, it was too late to edit/correct my mistake. Ironically, 2016 has been an "off year" for me, in terms of hi-fi, so, in fact, I've little to reprise for this year. I have poked ...
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Not only ULF, and not only the usual "dead" audiophile drivers, and not just raw amp power. My experience suggests that direct radiator drivers from 10" diameter and under claimed "100 dB efficiency" (and - especially - in multiples) can benefit fro...
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Well, it is a given that I am not a horn guy right now to begin with. Of course, the "theater speakers" were and are mostly dinosaurs and/or mostly of historical/nostalgic interest. I just want to mention some excepti...
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Amir, I have a couple of options for swapping phase, at different points in my system. On 2 occasions when Clark visited me at my place, I could switch phase and he could hear it, every time. I was pretty impressed by this, though he insisted that it...
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I was thinking, Bill, that you now have S3s running down to 400 Hz. If you ever said what you are using below the S3s now, I don't remember. I have only heard the 15" Vitavox a couple of times, many years ago, but I did once own Altec Lansing 515Bs, ...
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Romy, I'm enjoying this account of Melquiades upbringing. I must ask though: how are you sure that what you are hearing isn't on the recording? Not that I don't believe you, I just wonder if the stuff has been there all along and undis...
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MS2, I don't care much about compression drivers, but I have spent the past 2 1/2 years playing with direct drivers, trying to figure out what makes good sound. And no matter any notions about "scientific discoveries", the whole process has been the...
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Kerry, thank you for sharing your paper diaphragm idea. Very interesting. As I remember it, the Cogent diaphragm I saw (and listened to) at Steve and Rich's place was a flat disc of something like fiberglass, and it looked relatively heavy for the ap...
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Romy, if you have some spare diaphragm/VC assemblies for your S2 drivers, do the experiment I mentioned above (remove the outer layer of the VC) and we will talk about the inductance in terms of sound after you hear the results with your own ears... ...
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Yes, that's just what I was referring to. In my case, it seems to happen just as the ribbon's own apparent contribution "vanishes".Another thing I noticed was that as this happens the mids also take on a more natural/realistic relatio...
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Cybernetic phase blah blah blah...I (barely) managed to resist commenting about those pathetic little 4" drivers huffing away in that long narrow box, but I can't pass this one up!Just the buzz-words alone; it's got to be a translation thing!Too abso...
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... and, be sure, I completely agree... ONLY trying to "cut the air" and giving some understatement to a someway heavy matter - wishing to avoid any hype, which sometimes helps when reality can't be properly explained... the thread is interesting and...
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truth is i took a risk.i bought the s2s on ebay,and have never heard them.i was motivated to experiment and explore the core of the mac/melq system.i have owned many horns and heard many more. one case in point;avantgarde duo,i have heard this speake...
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[quote user="drdna"] I think this 2A3 must have a specific set-up to sound its best. You have not found it yet. To begin with and familiarize yourself with the sound of it, I suggest sticking with the topology that has been tested by amplifier design...
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Well, the Q5s were everywhere when I was trying to find big amps, and they really have no chance to move me. Even to do what they might do would take maybe 500W SS, yet Harley thinks he hears them at their best with the ML2.2. Then again, I suppose...
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BR, I have never used Romy's amp design, but I have used 6C33C SETs with Lowthers. I do not use my Lowthers FR, for reasons that are fully explicated throughout this site, so I don't worry about LF from those drivers. IMO, their best is MF up to tr...
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