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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Haralanov, you might not get it from my actions, but I actually understand and agree with everything you are saying, in principle. At the same time, I have no idea how to address such a sharp peak mechanically, since adding mass as usual would just m...
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[quote user="Paul S"]For the Reps I will use a 2,200 Hz notch filter for its peak[/quote]Paul, why don’t you try to fix the problem of the Reps driver instead of notching it? There is a reason for the peak and I do not consider the problem could be s...
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Sorry, I couldn't resist the header...Electricity was OK today and either the X/O parts are already breaking in or I had a "lull" in the expected parts shut-down. Anyway, I actually wound up seriously listening to some serious music! Even without f...
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As I have shared several times here, I happen to regard the Lowther as nothing more than a means to an end. Partly because of this, I have taken my lumps with this marque. Today, I am pleased to have finally made the speakers I imagined 6 years ago...
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After another couple of weeks in X/O Hell, I think I at least have the notches where I want them. Yes, I added another notch filter, because the Lowther response is so ragged that using a simpler curve results in bringing down frequencies I need...
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[quote user="slack key"]I know that speaker position and room acoustics are important. I use a laser to align the speakers, room treatments, hallographs, crystals, ionizer, Z-sleeves, bybee filters, etc. I also have power conditioners, installed de...
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[quote user="Kerry Brown"] A digital crossover with lower bit depth and sampling rate than the recordings it's processing won't deliver maximum sound quality; unfortunately my DEQX crossover is limited to 24/96 so it can't process hi-res digital ...
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The 100W+ SE is pretty much uncharted teritory, not to mention Bass SE. Who can speak about the Sound?Only that who tries.Paul, the diodes in Chimera are for biasing purpose, but I agree, here there is no cathode feedback not ot loose power,the whole...
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[quote user="Canuck"] From what I understand, if you have dimmer switches they will present a "noise" problem for anything on the same panel. One thing that could help and possibly significantly would be to do a pony box off the panel and hopefully...
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CJ Yes I have assessed AC polarity in my system.Romy says "I took today my large
3kW isolation transformer and place it between my dedicated line and
PP3000. I lost my lower bass, simple as that. "Speaking of isolation transformers, I have not h...
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Thanks, Scooter.I am glad to hear from someone so quickly.I've been an "audiophile" for only 10 years or so. With the Edgarhorns, I am currently using a Cyrus Brenneman integrated amp (KT100). I also have a Yamamoto custom 2A3 (single plates) w...
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Yes, steel chassis can be both good and bad. It likes to conduct magnetic fields, so you have to treat things appropriately. A little spacing under a choke can go a long way. Otherise you have a 120Hz motor. I have another tri...
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[quote user="Romy the Cat"]I am sorry; I do not follow what you are saing. I see no relation between a need to use a crossover with DSET topology. The Cat[/quote]What I am thinking is that with full range amplifier, you must use a speaker level cross...
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The last two weeks I have no preamp in house. I have great vintage EVS attenuators but I can’t use them with Melquiades as they talk with Milq’s input filters absolutely killing sound. The only way I can play music those days is only from my DAW,...
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[quote user="Paul S"]I will eventually get another pair of ML2s to slave the bass/save the upper registers, because, as we all know by now, dedication rules. [/quote]
It wouldn’t be a DSET but rather just a simple bi-amplification. Bi-amplific...
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Romy, it is of course "yes and no" situation. I thought it will be understood by presumption and it doesn’t need to be mentioned at all (but since it is Audio for Dummies section – it seems it needs to be mentioned :-) ). So - Yes - if it is done rig...
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It was not so long ago that the Super Milq was a twinkle in Romy's eye,and now it has come to the point he is a strong proponent of DSET (not to be confused with DH-SET). I am always a big believer in the power of topology. I was thinking about...
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Rick, sure, working volltage is important. What does your inverter require in the way of current in order to produce it's rated voltage at its rated current? I can remember times when I measured "correct" voltage when the battery was functionally use...
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[quote user="Romy the Cat"]partially because we do
not know what certainty what constitute “electricity problems” and how sound related
to the thing that we do know about electricity. [/quote]I also do not know.I think Pure Power 3000 is not just a...
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I already have some PY500 (it's a sign =))) ) and I have 836 too.I read about Malquiade amplifier threads.So it seem peoples on this forum like horn speakers (I love them too) and are looking for fast transient response, it's exactly what I like.But ...
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An electrical engineer who works for the power company (and who has no interest in hi-fi) was incredulous that I did not know that all "conditioners" and "regenerators" are aimed at a specific type of load, at least in terms of their ability to do wh...
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In the linked thread (at the top of the page) I was pointed out that GM Lab introduced their new Focal Utopia EM loudspeaker. Yesterday the Seattle’s Moron “mikel” posted a picture at AA with the new Utopia EM presented at RMAF 2008.
I saw the pic...
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I think that any line level tube stage can be every much of an expressive tool as any other device in the chain. I am also not sure that the biggest difference between digital and analog is the sampling process.How "transparent" is a cutting lathe or...
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Thanks for your help Romy. Have a look at this (barely legible) sketch so we have a common reference:This is Channel B First Stage bias circuit. All is identical to your published schematic apart from R9 which I had to increase to get the other sta...
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It looks good to me. As you can see I have left plenty of room to add a couple of more channels.The bottom level contains the power transformers and relays. The diode bridges hang from the the middle shelf and the chokes and filters are on the top ...
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Hi Roman... you know "... but Twogoodears normally prefer a do not go to depth..." it's not an hide & seek kind-of-thing, but a necessity;-), as I'm not technical inclined or taught enough to discuss in depth of circuits designing... I'm only a u...
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[quote user="N-set"]just a minor tech remark (feel free to ignore): the big-ass elco is theoretically still well in the picture. 10uF will have 320Ohm@500Hz, which is a fraction of 20Ohm R+3mF elco.[/quote]Jk, actually it is not exactly accurate.
As...
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[quote user="be"]Hey. I have not seen it mentionned here, have you tried, or even considered regulated dc-current supplies for the heaters?Should have the sound quality of ac-voltage supplies combined with the lack of noise of the dc-voltage supp...
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Ok, I shall stop to annoy lost in frequency responses DIYAudio people and to lay cards on the table, explaining why I consider that for now the Speedysteve7’s installation and his efforts are condemned to end up with sonic nothingness. When I read Sp...
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Gordan, you may be aware that I have blabbed quite a bit about the Lowthers at this site. The problems with getting the best from the Lowther are not really that different from optimizing other drivers via networks and other range-limiting strategie...
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