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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="zztop7"] I do believe that it is best to minimize adverse contributions. [/quote] zztop7, I was very much not my intention to be abrasive with you and I am surprised that you got it in this way, it wasvery much not personal. The angle th...
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A few nights ago I slept in my listening room, on the floor and we were listening Bruckner 8… My floor in the listening room does not vibrate but as I lied on the floor (4” futon) I did pick up some bone vibration during the orchestra climaxes. I was...
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[quote user="drdna"]one. I like to think of toplogical change in terms of an organic visualization of the electricity. traditional valve-OPT: A guitar where the vibration of the string transmits through the air to the guitar which respond...
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But is the wood not sitting on concrete, through which the vibrations from elsewhere in the building are conducted? If so I suppose the wood and the concrete will make differential contributions, and you might want to couple more proximally to one bu...
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Interesting device: Accurion Workstation_Vario....
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Ok, it took 2.5 hours to mount the transformers and chokes. The transformers above are filament transformer and high voltage transformer. (The super Melq has all high voltages coils as separate transformers). The 3 chokes above are input chokes for f...
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Those all things take too much space and the new amp for the “fundamental channel” does not really help the situation. I decided to convert the Super Melquiades into something that would have smaller footprint and position the control amplifier unit ...
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The straps seem like a good first step given limited space, weight and access to several beams. Unfortunately they can eliminate some vibration but will transmit through other points in the house frame. Hanging horns by straps will do little to restr...
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Robert, I understand what you say. Unfortunately this boat had sailed. I did not think about it from beginning and if I did then I would put into the design some decoupling provisions. At this point there is no time and there is not design margins wh...
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Thanks Romy!I went with two tiers as I do not have much space between the speakers and the side walls as I have a 2.5M cabinet on the front wall.I named my amp Koshka as I always felt Koshka made a contribution to the development of the Melquiades an...
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I did notice the platforms, and I figured it was something like this, since we've all heard the feedback loop that can happen, and we learn "what not to do" that way. Regarding your TT loosing LF atop a platform, I wrote here about my CD transport be...
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[quote user="unicon"]Bass FRQ have enough power to vibrate horn mouth and constructional area nearby them. use a chip contact Mic in your horn mouth n monitor how does it vibrate Remember the time I insisted for having access to your midbass horn dr...
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Hi Paul,I'm really not sure how else to explain it, but essentially it is "free air". The driver does not become influenced by a defined amount of "trapped air" in an enclosure, thus, it pretty much maintains it's free air specs. In my case, the driv...
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"I wonder if it possible to built an electrical equivalent of the “heavy snow storms emulator”?"The past month or so we have enjoyed several days of good electricity in Boston and last night I wrote to Romy noting that this was by far the best elec...
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[quote user="Romy the Cat"]Also, in DHT the electrons flow dispatched not from uniformed nice cathode but from many 3-D wires that make the arriving to anode not… time-aligned and more unsystematic. BTW, this is one of the reasons why many DHT people...
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[quote user="N-set"] I'm looking for a nice material to interface between the steel frame and the slate topas a contrained layer--would be a sin to loos such an occasion for constr. lay. damping.After some research, Sorbothane seems unsuitable as it ...
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[quote user="Romy the Cat"]Generally I like it but I have some concerns, whatever rubber
feet and decompiles you will be using you will not defeat the vibration if you
have a few transformers and a few 500A input chose sitting at the bottom. You
w...
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I have read Romys post about the fine hairs and such but do not necessarily agree with the interpretation here. Romy always has a specific UseCase and makes very clear what he is after. He has often mentioned his search for interesting sound and even...
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[quote user="drdna"] It is NOT that better tubes have no vibration. Instead, the tubes that sound best to me seem to have a sort of springy sound, like the sound of a water drop or the sound of the tabla drum being struck. [/quote]
Interesting. My f...
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Generally I like it but I have some concerns, whatever rubber
feet and decompiles you will be using you will not defeat the vibration if you
have a few transformers and a few 500A input chose sitting at the bottom. You
will take a statoscope and y...
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A very nice made rack. I do not know if “stupid, indiscriminative mass loading is a road to nowhere”. To me all of the solutions with rack design are road to nowhere. There are many reasons why some of the solutions are better or worse and they all d...
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[quote user="N-set"] Add to that marbles in egg holders and you have a real 6 axis decouplers, lightyears better than any audiopedofile $$$ spikes/cones/stillponts/HRS etc. Thank you Bary Diament for enlightning writings:http://www.barrydiamentaudio....
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It is exactly what that this the “best person in the word” is doing – two gaskets above end the under the mounting bolts. Perhaps his sockets have better pins or whatever but it is not the subject that I am interested at this point. Form a perspectiv...
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It took a LOT of time in CAD using what I had learnt from building the power supplies and then adapting it to match the requirements of the rest of the system. I have decided to mount the DSET on the horn stack and direct connect the speaker cables....
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Anthony, it sounds like you have given a lot of thought to damping structural vibration. I was referring to the electro-magnetic fields thrown by transformers, and - based on my view of your perspective drawings - I was wondering if you had also ta...
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Agree, it is very good. For the vibration isolation, I would
worry only about the driver tubes. If you have some money to waste then you might
look for ALNIC made tube sockets vibration dumpers. They are VERY effective and
if you buy them in bulk ...
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Romy, does it not make sense to integrate the speaker and amplifier physically, given they are so tightly integrated conceptually? After all the concept of DSET essentially makes an amplifier bespoke for a speaker, so the only reason for keeping them...
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[quote user="decoud"] None of these seems to apply in your case because you have a properly levelled installation, directly on concrete [/quote]If I had it on a concrete I'd be very happy! On wood it is, mafrend, on wood.[quote user="decoud"]I see th...
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To use a Class D amp on those SG-146LD GOTO drivers? Is it what GOTO proposes? Hm, I do not know, the more I learn about them the more question I their sanity. The SG-146LD does not adjustable resonance frequency. It means that in whatever horn i...
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Romy,I somehow feel that you should look into the vibration induced resonances that those rooftop horns might create.I'm not really familiar with the all-wood building techniques used in that side of the Atlantic but I have a hunch that unless you ei...
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