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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="op.9"]I now run my 'tweeter' amp 1st order high pass at 2200hz (driving BMS 4540nd in 1500hz leCleach horn) so my impressions might have some bearing on Romy's new amps. I was playing around with operating points and components in my sin...
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I'm working on a project that may be of interest to others, and thought posting to this old thread was a better way than beginning a new post.I use speaker level passive crossovers, between multi-amps (not DSET) and drivers. My desire is to move the...
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[quote user="Paul S"] Fremer has just pitched these in the new Stereophile, and the online buzz is building . Isn't D'Agostino the Krell guy? If these are different than the Krell amps, then how and why ? Disclosure: I quickly dismissed the Krell...
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Romy:Going back, you said:"Vitavox S2 does OK up to 12.5K ("strong, clean and in character") on it’s center but I never use this driver pointed directly to me but rather at good 20 degree off. (I hardly can tolerate any compression driver point direc...
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It is good, very good. Actually I did not expect that it would be so easy and some resentful at the same time. I was running the new horn, juts single horn, listing it here and there, trying to get a precise high-pass crossover point. The 18.5uF turn...
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Not sure of the cost of advertising in the "big audio journals", but it seems "the companies with money" are always trying to maximize return on investment, like any "good" business venture does. One popular strategy is to "get a name, then reel 'em ...
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I am not too worried about the 6C33C bass, since I have other alternative. Even if lower loading will improve it, the problem is to get more power out of the 6C33C to a 40W (PSE perhaps) level to be able to drive the 12in or 15in woofer, even then th...
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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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This is very interesting, Anthony. I do think that absolute polarity has own role to play. Also, do check the DC that might be sent out of your preamps, certainly with Placette and with your 10Y before the transformer. Chas it with disconnected Milq ...
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In this exalted company its probably not up to much but I've not heard anything else demo-ed that makes me want to change. :)Front end: Vista laptop with XXHighend software (best sounding bargain in Hi Fi). Fireface 400 external soundcardDAC/Pre amp:...
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[quote user="stevie7V"]… they can be used effectively in parallel with the main speakers and running about 5 or 6 dB quieter. I use them with a separate amplifier and adjust the volume until I 'just can or can't hear them'. At this level,...
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[quote user="drdna"]The idea of 360 degree radiation of sound has great intuitive appeal to me since I feel the best recordings are done with two omnidirectional microphones. The most precise reproduction of the musical event would seem to be: ...
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RomyThis topic is relevant to me currently as I am attempting to get a 750Hz low-pass into a valve (tube) amp that is driving a bass section ( Supravox 285GMF in an Onken cab ).I have run through a few options in my head but can see various problems....
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ahh yes, tapped horn is what you would call "close bottom." It has to be designed around frequency response (which is very narrow band). It isn't a problem getting one to go low enough though, and the quality of sub bass produced, smooth yet dy...
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OK, I see.
Actually, I was planning on using the Druids with their ports sealed. Bad idea?FWIW, I have a pair of Wilson Benesch Chimera speakers (the UK-based manufacturer, not to be confused with the 'famous' US one) that I'm hoping to use fo...
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Mani, I am not saying that any driver (let alone any collection of drivers...) will ever be entirely "correct" in terms of acoustical instrumental timbre, no matter the frequency range it attempts to address. I am saying that the sonic "weight balan...
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[quote user="zako"]Roman,,,, you dont know where any thing will end up... i was involved in a small film,,,Concerning the First Mercury space craft,, With ALLEN SHEPARD,, They (NASA) wanted a anamation film to be broadcast over TV while Shepard made ...
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oi Romy ,Since you added a new parameter in audio play back called : Decor I'm afraid, it may make it far too hard.anyhow can I see 360 degree view of your room (video) ? I am afraid you are in wrong shape of set up in first placeFor instance from...
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Haralanov, I've spun this thread off the "Speakers for a Powerful SET" thread, as you suggested. I took a couple of pictures, but I can't figure out how to upload them, just yet. I'm also not sure what you could see from the outside, anyway.As for th...
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[quote user="jamikl"] I recently saw a thread which may have been posted some time back to do with using a reflexbox for mid or upper base. My impression is that you are solidly opposed to using this setup within the rangein which it is normally us...
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Perhaps there are ways to horn load Lowthers that do not screw up the sound, but I don't know of any, and there are other reasons, as well, for not asking LF from Lowthers.For me the best thing about the high-pass-limited Lowther DX4 in OB is th...
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N-set, starting from reasonable input, the 6E5P can swing some serious voltage, and Romy also sings its praises in terms of sound. Maybe sim that, running it in its safe zone to a 6C33C. From there, you have all the power you'd want to drive -- what...
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Yep, you re right, the Yamamoto A-06S is SET, I did not read it carefully and I was under presumption that A-06S is PP monoblock. Good for Yamamoto! The only amps I heard with AD1 were PP. Somewhere in the very end 90s I shortly was exposed to i...
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Paul -- I used 1st order & bandpass on the Beyma. I think that 2nd on the Lowther would have been better.I set out to try and extend one "way" from the end of a wide-range drive unit, downwards. This I found to be well nigh impossible -- perhaps ...
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Okay, here's a graph that shows theoretically what will happen when the volume is doubled and a few other circumstances. It should give you an idea of what's going on. It is important to note that when the Vb is doubled, th...
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Thanks for the advice Romy.But actually, I may not need new tweeters after all (for the time being, at least, until the dreaded 'Autumn Sound' arrives).You see, when I connected them up, I didn't really think too carefully about the speaker...
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[quote user="clarkjohnsen"]As one who frequently listens to both weekend broadcasts, I'd like to know which one is uploaded. Do they tell us? Or could it be... a compendium?[/quote]Ein Deutsches Requiem was recorded on September 26 & 27, 2008 Th...
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Guys, I think you are missing the point.
Regardless what technology the DG used the DG’ “Originals” series are in away different as they (allegedly) do use technology to guide sound with those re-masters but rather then use the trained ears of...
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The best midrange comes from compression drivers, it has that minuteness, transparency and dynamics that no other topology can offer; the main problem with them is that they only cover a very specific mid frequency ran...
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On the topic of string slippage: I don't think my string, the original one from MS by the way, slips at all once the platter is up to speed. It would slip on the motor pulley when first turned on, as the heavy platter must be gradually brought up to ...
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