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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Angelo, We should probably start a new thread to discuss horn construction in general, as this thread is about a specific aspect of that subject (driver to horn transition).To answer your question very quickly... As previously mentioned, I will ...
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HiSomething sounds very wrong - maybe something fishy about your samples?Take a look at Nelson Pass measurements towards the end of the following document:http://www.passdiy.com/pdf/KleinHorn2.pdfwhere it looks like the PTR9s have similar sensitivity...
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May I at least ass-u-me that you plan to high pass these horns? If so, go ahead and figure that in, too. In any case, just looking at 70', impedance is not the only number you'll be running up, and the last place you want this load is for LF chan...
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Last month of two I keep thinking about the super-meaning of lowest octave in sound reproduction. It is not about the importance of the lowest octave for sake of audio reproduction, there is a lot about it in other pleases of my site and anywhe...
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Hi Romy, Just a couple comments on recorded quality and dvds. If you have a chance try to find the DVD called Eroica put out by the BBC a couple of years ago. It is a quasi-reinactment of Beethoven's unveiling of his new masterpiece...
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I do not understand from what you said the sorts of problems you are dealing with. What are you using as high and low-pass X/Os. Where and how you cross the drivers can make huge differences in the sound. Also, how did you throttle back Macando to ma...
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[quote user="Romy the Cat"]. What was your resonant frequency after loading? The 416 are 25Hz drivers, after loading and with two drivers it might be deep in teens. From the picture it looks like you keep the back chamber of extra large space, or eve...
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After much consideration I desired to get my test crossover. I chose when for Velodyne SMS-1 that someone pitched at this site before. The unit has 6, 12, 18, 24, or 48 dB/octave low-pass filters that I need and runs up to 200Hz. I do not think that ...
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Gera, is this an idea you're familiar with from a sonic standpoint? The horns are supposed to boost lower frequencies within their pass bands without adding their own sound, or - more realistically - allowing for their own minimal contribution to th...
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"self-matching input impedance "Aren't they trying to say the input is grounded? It sounds like they're using the current signal from cart, not voltage. Like the 47 Labs stuff. This concept has merit, but I never tried it. To ...
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I hear you, Romy, too many other things going on to do this full time, like "the old days". To save time and effort, you could try to "repeat" the original Dannoy configuration (same gear and location) and hear if it is "repeatable". If not, you're d...
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KS, I never understood those type of questions. A channel need to be crossed not according to any theoretical justifications but where it would let a given driver in given enclosure to perform it’s best. You need to evaluate what you neighboring chan...
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The really big PITA with X/Os as far as I am concerned is that the curves change once the stupid X/O is in a real circuit under load. With the pass bands and the need for "tailoring" at LF getting so narrow, I wish I could just slide levers as I lis...
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Gera, I have lived with similar for years, turned this problem all around many times. While something like 15" Tesla AROs should work well up to 250 Hz, I think you will have to get very clever to get more than flatulence or thumping below 40 Hz fr...
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[quote user="Romy the Cat"]Yes, the layout kind of not optimum. You might try to lay the transformers sidewise and to make the RCA atop, above the transformers. Still, I hope you understand that your hum has very little to do with layout. Properly gr...
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An interesting excurse in past, thanks, Clark, you see you might be useful…. What I wonder is: considering your internal knowledge of Boston’s local FM market, how many more miles do you think we will be able to get o got the FM? I know that WCRB a f...
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So I wrote one of the big DJ/producer guys at WFMT, complaining about the horrible sound last night.He wrote right back saying I was absolutely right, the Phil broadcast had sounded awful.Turns out FMT had made a last minute decision to take the PBS ...
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Hello, thank you for your answer, I already read this very interesting link (this how I knew about this forum (like "yes ! there is weird people too"))I never saw too much parellele things too (excepte for solid states); I hope nothing is wrong doing...
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Amir, it is funny to hear that you like $4,600 Purist but would prefer $10 Belkin SPDIF. The Synapse is basically an effective low pass filter, albeit this seems to help many systems. Like I said up the thread, I have not concerned myself with SPDIF...
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[quote user="TonyB"]What does Linx16 card do in your tuner recording set up? Do the digital A/D signals only pass through Linx16 or do they get buffered in PC RAM and then go to the Linx16 digital output? Tuner audio sounded very similar directl...
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I have already got a tape recorder and now here is what I am thinking. Since there are quite a few tapes with Dolby A, Dolby B, Dolby c, Dolby S, Dolby SR, DBX and since some of the tapes were not properly EQ I would need an abili...
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Well, this kind of reminds me of an experiment I did with multiple speakers each with a varied delay built into the signal path to emulate room reflections. This allowed me to manipulate and move the image around. The end result is to min...
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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 Stravinsky His...
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...of wines and power conditioners and Bruckner and cigars. That said, I don't do cigars; I really, really do do Bruckner; power conditioners vary in their effect from place to place, day to day, and hour to hour (not only that, but most of them need...
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On initial installation of my borrowed 1050 i used power cords i have as extras. Did so cause i was still using my BPT for everything but my amps. I had a hum and high pitch buzz from my speakers. Replacing the power cord feeding my amps was the cure...
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God, I hate to bring this up as it seems you have given up on your quest for better monitors.Maybe I missed a thread somewhere, but reading over earlier posts you were looking for- high efficiency- tone- dynamics- sealed designZu Credenzas have same ...
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Nice job of keeping R off the ribbon. Like you said, who cares about circuit "damping" there, anyway, given the freaking magnet in that thing versus the 0 weight of the ribbon. I'd say it's "damped enough"...It will be interesting to...
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I like your comment about LF being too dry and this not being because room is untreated.In the past, I have tried to "wet up" sound by making room more reflective ("live") and I am guessing that your room is fairly live now as untreated rooms usually...
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[quote user="Bill"]1. Put a door in front of the alcove that is casusing the resdonance and line it with 6 " of sonex. May turn the space into a bass trap at 60 Hz.2. Put an adjustable notch filter into your crossover at 60 Hz.[/quote] Bill, the 6 "...
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Paul I have to admit being wrong about "BUdification" (enabl doted Lowther) process . I don't have explanation besides lenghty "brake -in " time but I would not bet on that. It may be a show stopper for you but I also admit liking them better in fron...
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