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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Romy notes:[quote]The Lamm ML3 with it’s (looks like) composite driver stage might most likly to pump a lot of current and it would be so rational to put in there a second GM70 on the same chassis with own transformer, driving it from the same driver...
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This is our first offering; we are indeed working on another two higher priced models. One will have an additional channel on top, the other one will be front horn loaded down to 40 hz. Optional finish and colors, both for horns and supports, a...
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Thanks Romy, very interesting thread.I've never tried the analogue inputs for the DEQ2496. If I want analogue in (which is rarely) I use a mytek a/d which sounds quite nice (but oneday when I get the time I'm going to modify it with i/p transformers ...
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[quote user="rowuk"]In my over 50 years of personal audio, I think that I can explain part of the speaker/amp compatibility. This opinion is everything but comprehensive.Bad matches in amp/speakers manifest themselves very often in the bass. Please c...
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I worked a little bit with those and I compared it to Vibraplane.The Minus-K are ok, they do a good job BUT they move very easily, they are very wobbly and based on that, you can only use them with center weight Turntables. And based on their size, w...
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Hi Cat,The more and more I listen to reproduced music, the more I realize dynamics and tonal respect are key to start any reasonable installation. This kind of crosses over into some driver discussions so bear with me...My Tannoy 10" ...
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[quote user="Romy the Cat"]...but I was wondering how the length of the port and the most important the proximity of it to boundary affects sound. [/quote]A general rule is to keep the end of the port at least twice its diameter away from walls....
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[quote user="David"]I think for a start there are so many different ways of getting a sound that is acceptable to the listener it pays not to be too dogmatic.I am in the early days of developing my system with speakers from 4 different manufacturers ...
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I have been looking forward to build my own dedicated passively cooled, Windows based source, with external power supplies and SSD drive, based on an HFX Classic case, or even better, the HFX Mini Metal, sometime towards the summer of next year. See ...
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There are a few manufacturers out there, Minus-K, Halcyonics, Vibraplane...The Vibraplane is a good unit for the money, I have no problems with it and it does the job the way it should.Those Vibration units work different from construction and are ve...
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I am getting a dedicated third amp to drive my upper bass channel and I just figured out that when I go with my midrange channel at the line level passive filter then I would need 0.0000302uF capacitor against the amp's input stage, that means… 30pF…...
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http://app.audiogon.com/listings/omnigon-full-function-tube-preamplifier-phonostage
Looks like a serious effort that has been kicking around for a while.What tubes are used? Are they twin triode, like 12AX7 or - more likely - 6922? Both t...
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So, you use DCX 2496 for deals but not for crossovering and your crossovers are still on analog domain, right? Romy, I do everything in the digital domain so I use DCX 2496 as my crossover as well (but analog SS pro amps). I know you're no big fan of...
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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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[quote user="Romy the Cat"]...Then Bill crossed his Dannoys at 80 cycles, and the bottom field is his subwoofer. The sound was still very nice altogether with exception of digital amplifier signature but Dannoy become so much less dynamically challen...
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After much listening and measuring I convinced myself that there is no way for me to escape the use of the 24dB per octave slope if I want to keep the sound of my midbass horn not violated. I also have to admit that I will not be able to render 4th ...
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[quote user="MINGSU"]Here is an example on how to use GOTO 505TT driver. Use the GOTO S150 horn and crossover at 200Hz to 1kHz. If you like to use other type of horn and crossover point, you are on your own. Maybe good or maybe not but that is you...
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Hello Anthony,I did experiment with metal tubes for bass in a sealed configuration as you are planning. The weight of them, even made out of thinner than you would like steel, is prohibitive. If you make them out of aluminum pipe, then it could be b...
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Hi Romy, I don't doubt for a moment that there are plenty of people 'who know' who will wax lyrical about the benefits of open loop eq in feedback circuits. There are people 'who know' who will tell me that valve amplifiers cannot be as good as trans...
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[quote user="Thorsten"]Then it does exactly what is asked of it, I asked JB to design it for me PERSONALLY as a "wire with gain". I have been on previous occasions been unconvinced of many stepup transformers, be they sowter, amplimo, EAR or jensen. ...
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Here are a couple of measurements of S2's (not taken at the show).Both are taken at the listening chair, ear position in my system.This one is on a 2nd order passive, spec'd to cross at 1.25KHz.(This was Coco's S2 with new surrounds on a Le Cleach 55...
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OT - Is Steverino your real name, childhood nickname, or how you prefer being addressed at the gym?You missed the meta-point. I waited a long time before trying computer audio because of my reservations for trading more convenience for lower sound q...
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This is always good advice, to get to know the character of the phono stage. Because my favorite cartridges are not low voltage (I use Decca London Jubilee and Reference) I have never had a need for the ET SU-1 step up unit. In fact, I had this in my...
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[quote user="MINGSU"] SG505TT + S150 horn crossover at 180 Hz is not recommended by GOTO. The SG505TT driver is not recommended to use with single throat S150 horn. Double SG505TT driver is recommended to use with single...
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[quote user="Merlin"]I certainly think you must use an active device for the bass/mid transition in any serious design at this level. Choice of amplifiers will be personal. I don't have the worry of output transormers.
[/quote]Don't I remember yo...
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I think most of reader get my point of the car examples. The main point is to follow the manufacture recommendation on how to use the driver. Of course, if you want to do something different, that is your choice but don't come back and blame the dr...
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There might be 'rule of thumb' here, but let me explain a bit better with some specifics.I'll have a Radian CD in a 425hz horn playing 800hz up to where it starts to roll off naturally at 6db at, say, 10K. And a similar Radian taking over from there ...
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agh..well.. i can see that you'd never be over for a beer and listen session, romy! not that i wouldn't invite a curmudgeon such as yourself.. but my own system might not make the cut!i just finished off a little 2 way bms/altec system (and i d...
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Good question, as usual, Decoud. No doubt it has something to do with the very unusual recording, plus my own penchant for "getting involved" in the music according to what the recording and the system will allow. It was not an LP, after all, but a ...
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It would be you!I should have known you had researched this more than the posts revealed.I know I would not want to wrestle those drivers out of the attic, either. I figure you have replacements to use temporarily so you would not be without, but .....
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