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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="twogoodears"]I'm following with interest the thread and must say that I'm baffled: Goto's "instructions" are - SIMPLY said - a mix between non-existent and wrong... I love what Goto's did in my system... BUT I think I did more with "...
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Dear Malinowski,The basic idea for phase plugs is that the sound from all points of the diaphragm should arrive to the throat at the same time. For the midbass horn we only used a simple one slit plug. If you feel up to it you could make a more...
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Romy, You make all very good points. I probably shouldn't call the front of the driver a phasing plug, because actually the long wavelengths really don't care much about the shape of the exit, they will just pass right through...
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Listening to the horns, it seems that they indeed die somewhere below 120Hz. I was surprised, and a little disappointed that it seemed so steep. Good to hear that it's to be expected!!Yes, I'm using a 30-something-Hz 1st order high pass on them ...
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[quote user="HDTT"]I beg to differ with Romys assesment of my signature sound, one thing I found out is people are very,very different in what they like and dislike. An example is a "quote" reviewer (which will remain nameless) did not like my Stravi...
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Paul,My current active crossover is a DSP unit which likely has low enough input impedance and single ended inputs. I added BAL inputs by using input transformers. By no means do I want to use this combination as a representation of my crossover! I i...
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Last year I had the chance to listen to the Vitus SP-102 Phono Stage. When I remember right, it was ok, some of the better modern Phono Designs. It wasn't as thin and dead as Pass Phono for example, but it was also not able to go out of the way in re...
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[quote user="drdna"] dkarmeli wrote:I have an AF1. I understand your justified bias regarding reviews, but this is one of those rare cases where the reviewer does know what he's talking about.David, I hope you understand Paul's recalcitrance. We've a...
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[quote user="zako"]A stromberg Carlson 1936 unit with a LABRITH horn design,,,Its a full rich sounding radio and a well balanced sound.. No you cant have it,,Go find your own,,,[/quote]Thanks, zako. I would like to have a radio that do FM. In 1936 ...
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[quote user="Paul S"]I will still buy clean Seraphims with good program material if I do not have the original. If I do have the original, I pass on the Seraphim, even as a "back-up", UNLESS it is a record I have loved so much that I am killing it.M...
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I have never had before a decent tuner, so impulsed by your rave comments about FM and regarding the fact that we have here just two quite good FM stations broadcasting frequently live concerts from the National Auditorium and Teatro Real, ...
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Romy,reading your post a most recent listing consequence comes to mind, that I could also not quite place. I worked on a my cross-over, the RCL of my mid-range driver, and had a by-pass cap of 1uF connected over the 2nd base cap of 47uF on the one ch...
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Your point about relative levels is well taken. Still, the typical concert grand piano, for instance, does about a 27 Hz fundamental, as I recall (and certain pianos go rather lower), and some other instruments are not far behind. If to simply low p...
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[quote user="Paul S"]Your point about relative levels is well taken. Still, the typical concert grand piano, for instance, does about a 27 Hz fundamental, as I recall (and certain pianos go rather lower), and some other instruments are not far behind...
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Yep, the IB sub does it's job, as I expected because I had an IB sub in my previous listening room. I think you will really like the bass of this configuration because from my past experience -- there is nothing as good as IB sub for low bass, for lo...
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I am not sure I follow the TV analogy...I think that the best course where any sort of voltage divider/attenuator is concerned is to do it without messing up the audible results, of course, but also to keep it as "neutral", "transparant" an...
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[quote user="Romy the Cat"] When I have my old transformer 11:1 then I had the midbass horns calibrated so perfectly that you can tune a large symphonic orchestra by it sound. It was spectacularly stop-on setting with any type of music if played it n...
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Since I change the transformer I picked some harmonics and now I feel that my midbass has a bit too long roll off. I moved the second low pass filter close to the first filter. After a very careful listening and some thinking I ended up with setting ...
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The entire morning I am cleaning house and listening WCRB, warming myself up for 3MP broadcast of Riccardo Muti leads Chicago with Verdi's Requiem. Hey, did I tell you that am listening my new midbass horns? Well, I do and I do not. The throats of th...
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There are a few other ways to roll off HF: shaping and extending front chamber, playing with damping of the driver cone and so in. The Altec 515G at 220H, what the channel above? When you say that you have too much HF then how do you methodologically...
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I am somewhat familiar with the dact: I used it in non controlled manner but familiar environment; it was assembled by someone else who also provided the necessary power supply; it was in two chassis about 15x15x~30 cm each (one for ps), so the equal...
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I miss the ancient "apologia", but who has time for ity these days? For those familiar with this gambet, consider this blast preceded by an "excuse" that somehow justifies both itself and what follows. I am too tired to bring these thoughts to ...
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Maybe Kierkegaard was right...Although I was introduced to Great Burgundy during a series of great, grand, multi-course feasts, this was a long time ago, and things have changed for me since then. For one thing, there was never any Bruckner rendered...
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Well, I do have 3 channels of DSEP. Dedicated Single Ended Pentode: one channel (bass/mid 30-500 Hz) with a 307A DH pentode feeding two wonderful Fane neodymium Colossus 12" - one from FS to 150 Hz and the second from FS to 500 Hz. OPT with a lot of ...
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what a great idea-- i never really thought of a sort of 'low pass bypass' inductor of sorts?! i'd always assumed that inductance was similar to capacitance in that regard-- the more you add, the more you get-- but hadn't thought about the...
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[quote user="Antonio J."]Their price is not exactly "budget". The description sounds interesting, but I'd like to know if you have listened to any yourself and can recommend some for being an interesting performance worth a listen.[/quote]I would lik...
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Hey Cat,Well..my first question would be regarding the application. The big Melq tube is already doing the bass towers...is it not enough current? And wouldn't a proper class A 100w amp with its low low efficiency require something like 1...
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So, what you would have to do is buy a bunch of #9 AWG solid copper wire from China, so it is only 99% pure,acid etch the surface, paint it with tar and wind it up in a snake sex twist. Or pay them to do it for you.The idea is sound, the application ...
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[quote user="jessie.dazzle"]Assuming situation 2 is possible, receiving mid-bass primarily as reflected sound, one would have to take into account the reflected path of that sound, and how it describes the mid-bass part of the image, relative to the ...
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I am quite fascinated with the result that I might get from MiniME and at the same time I am defensive with the direction it takes. Anyhow, here is how it stands…
The decision to go for MF driver was I think right one. Even the 70-20RX tweeter has s...
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