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Read the Post in new Window Read the Post in Threaded view  Post #274: Coupling vs Decoupling at Mouth End by RF at Ona on 2010-09-16 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
[quote user="Romy the Cat"]  RF at Ona wrote:Personally, I think it debatable whether the mouth edge should be free or attached as there are desirable aspects to both approaches. If attached, it need not be attached with great pressure.  Robert, ca...

Read the Post in new Window Read the Post in Threaded view  Post #262: Spreading, Dissipating and Grounding Vibration by Paul S on 2010-09-14 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
My first thought is for a "very dense layer of foam", or maybe very good felt, between two hard, even "slipping surfaces", such as 2X4s or even "5/4" (1" net) or 3/4" net oak boards.  This might be a fairly thin sandwich that the entire length of...

Read the Post in new Window Read the Post in Threaded view  Post #264: I need absolutely no noticeable vibration on the listening floor. by Romy the Cat on 2010-09-14 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Again, none of the pneumatic methods would work as any pneumatic leak air with time and it will be no access to it after the horns are installed and the walls are finished.  Not mention that we have no high to play wit. We will be doing the follo...

Read the Post in new Window Read the Post in Threaded view  Post #6: Horn wall vibration by Bill on 2011-06-15 
Browse the content of the threads in new Window  Thread: Impulse response, short notes and midbass horns. in Horn-Loaded Speakers  14 Replies 
I had the same problem with my 6 foot, bass horns , which were built from 3/4 inch high density fiberboard. On doing some measurements back then, it turned out that they were vibrating for a few milliseconds after a pulse, giving a decent rise time b...

Read the Post in new Window Read the Post in Threaded view  Post #10: Mouth vibration vs. re-entry echo. by Romy the Cat on 2011-06-18 
Browse the content of the threads in new Window  Thread: Impulse response, short notes and midbass horns. in Horn-Loaded Speakers  14 Replies 
I do not think that anything in back chamber has to do with anything. Look at the size of back chamber and the wavelength. No reflection from there might have effect to anything. For sure the material of the back chamber affect virtual volume but it ...

Read the Post in new Window Read the Post in Threaded view  Post #12: How to test vibration vs. re-entry? by Romy the Cat on 2011-06-20 
Browse the content of the threads in new Window  Thread: Impulse response, short notes and midbass horns. in Horn-Loaded Speakers  14 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #75: Vibration Control - too much of a "good" thing? by ducatirider on 2008-07-07 
Browse the content of the threads in new Window  Thread: Ultimate Turntable in Analog Playback  220 Replies 
newbie here but this interests me as i have the baby raven one.  the platter of the ac is hollowed out and filled with a gel and then topped with the copper "mat".  why is this important?  because vibrations exists is 2 forms, s-w...

Read the Post in new Window Read the Post in Threaded view  Post #6: Tube vibration sound by drdna on 2009-02-10 
Browse the content of the threads in new Window  Thread: About the life-expectancy of the new production tubes. in Audio Discussions  9 Replies 
[quote user="Romy the Cat"]The contemporary productions DHT tubes (Russian of Chinese) are superbly firm and have no internal noise when they shacked or hit. The mintage 60 years old tubes what you make the “close to ears” test responses like as some...

Read the Post in new Window Read the Post in Threaded view  Post #27: Vibration injection? by drdna on 2008-11-30 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #145: Tube sound and vibration by drdna on 2009-01-28 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="Romy the Cat"][quote user="drdna"]As I had been looking at all these tubes I began to also inspect their interior construction. This will amuse you: one thing I would do is to hold the tube right up to my ear so the glass would be touchi...

Read the Post in new Window Read the Post in Threaded view  Post #142: Vibration in tubes and sounds by drdna on 2009-01-27 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
[quote user="Romy the Cat"]Stonily they are very similar in my view with a very slight advantage of 6E6P in delicacy and softness. I do not know what you mean “respond differently regarding vibration.”[/quote]As I had been looking at all these tubes...

Read the Post in new Window Read the Post in Threaded view  Post #55: Vibration controll... by N-set on 2011-03-20 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
...is a pita, no, no, PITA! In my circumstances I've had so farreasonable results using foamed natural rubber to mechanicalydamp the chassis. Has anyone tried that ridiculously expensivesilicone gel tape/chips?As for the multiple shields on MC's. Hig...

Read the Post in new Window Read the Post in Threaded view  Post #111: Low frequency vibration is not so easy to deal with by anthony on 2017-04-17 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="N-set"]Anthony, I'm sure you realize that air springs and bearings can only isolate from the structure born vibrations. Placing the tubes so close to the speakers you give them a great chance to catch strong airborne vibrations. Or will ...

Read the Post in new Window Read the Post in Threaded view  Post #162: Vibration induced resonances by tuga on 2010-01-31 
Browse the content of the threads in new Window  Thread: Midbass Horns and Real Estate. in Horn-Loaded Speakers  247 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #3: Questioning unquestionable. by Romy the Cat on 2014-08-25 
Browse the content of the threads in new Window  Thread: Platine Verdier Magnum in Analog Playback  6 Replies 
[quote user="zztop7"]People forget that their floor, subfloor, & other associated structural pieces connected to & part of the listening room will have to EQUAL the standards of the Verdier.  Do NOT count on your contractor no matter what he ...

Read the Post in new Window Read the Post in Threaded view  Post #24: Connectivity is not causality. by Romy the Cat on 2010-11-28 
Browse the content of the threads in new Window  Thread: The “Dead Points of Live Sound” in Playback Listening  35 Replies 
[quote user="unicon"]I agree and understand how important is moving the speakers to find the symmetrical impulse from both channels BUT in microscopic movement we mainly correct the vibration of speakers which indeed effects the whole things.in m...

Read the Post in new Window Read the Post in Threaded view  Post #25: To jack or do not jack, and more thoughts. by Romy the Cat on 2010-04-19 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
Yes, I bought a few jacks, they are not expensive, I can buy a lot of more. I put them under the floor, assuring that the floor does not “play” anymore but there is one big but in all of it. Those intellectual attacking of the floor’s mode have absol...

Read the Post in new Window Read the Post in Threaded view  Post #62: More logic by decoud on 2013-12-05 
Browse the content of the threads in new Window  Thread: Mastodont DIY Rack: Wall Mount? in Audio Discussions  68 Replies 
N-Set, I do not claim to add to the facts you have already comprehensively given, I am merely asking about the logic, and I do not suggest to have a definitive answer, hence my ending with a question. I can see three reasons why other people use spik...

Read the Post in new Window Read the Post in Threaded view  Post #1: Superbly interesting effect: Suspended decoupled floor delay by Romy the Cat on 2010-10-08 
Browse the content of the threads in new Window  Thread: Superbly interesting effect: Suspended decoupled floor delay in Playback Listening  0 Replies 
Last night I was experimenting with integration of ULF and midbass and was playing relatively loud. The ULF woofers is at second order at 35Hz and the were located outside of my listening room, in the next room with a large wale between then, but...

Read the Post in new Window Read the Post in Threaded view  Post #10: Mouth vibration vs. re-entry echo. by Romy the Cat on 2011-06-18 
Browse the content of the threads in new Window  Thread: Impulse response, short notes and midbass horns. in Horn-Loaded Speakers  14 Replies 
I do not think that anything in back chamber has to do with anything. Look at the size of back chamber and the wavelength. No reflection from there might have effect to anything. For sure the material of the back chamber affect virtual volume but it ...

Read the Post in new Window Read the Post in Threaded view  Post #271: Weight bearing decoupling inches back from mouth end of horn by RF at Ona on 2010-09-15 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
You can improve the vibration decoupling by lessening the weight on the horn mouth edge. There is no need for the edge of the horn mouth to bear a great deal of the weight of the heavy end of the horn, although that seems your current plan. Th...

Read the Post in new Window Read the Post in Threaded view  Post #264: I need absolutely no noticeable vibration on the listening floor. by Romy the Cat on 2010-09-14 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
Again, none of the pneumatic methods would work as any pneumatic leak air with time and it will be no access to it after the horns are installed and the walls are finished.  Not mention that we have no high to play wit. We will be doing the follo...

Read the Post in new Window Read the Post in Threaded view  Post #28: Passive vs. Active flooring. by Romy the Cat on 2010-04-20 
Browse the content of the threads in new Window  Thread: Romy The Cat's new Listening Room in Audio Discussions  478 Replies 
Albert, the Adjustable Hydraulic Dampening might be effective if the vibration of floor is the factor.  This is exactly what I question as I do not feel that the floor vibration is a problem. Considering the length of the waves and the amplitude of t...

Read the Post in new Window Read the Post in Threaded view  Post #279: Clarity in the murk by steverino on 2018-04-02 
Browse the content of the threads in new Window  Thread: A listening room for a domesticated Cat? in Audio Discussions  283 Replies 
Romy,OK this is getting clearer I think. Any object that receives a force will vibrate. So even before the music starts but there are hundreds of people in the seats, their feet moving around are vibrating the floor slightly. Similarly the orchestra ...

Read the Post in new Window Read the Post in Threaded view  Post #1767: An interesting observation by N-set on 2021-02-24 
Browse the content of the threads in new Window  Thread: It’s mad, mad, mad... electricity. in Audio Discussions  1916 Replies 
I needed to lift my PP1500 off the carpet as it had not enough air circulation. Somewhere in the PurePower materials I read that vibration isolation is advisable, so I decided to kill two birds with one stone. I've got a set of nice metal roller foot...

Read the Post in new Window Read the Post in Threaded view  Post #323: The first shaking test. by Romy the Cat on 2010-09-28 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
The horns are still plugged but I desired to test if the vibration from the midbass hors will be detectable on the listing room floor. The mouth of the horns does vibrate. Well, it is not a vibration but rather some shaking – pit in this way – if I h...

Read the Post in new Window Read the Post in Threaded view  Post #11: The shaking Bruckner. by Romy the Cat on 2012-04-11 
Browse the content of the threads in new Window  Thread: How to play Bruckner Sound in Audio. in Playback Listening  16 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #6: Adverse contributions. by Romy the Cat on 2014-08-26 
Browse the content of the threads in new Window  Thread: Platine Verdier Magnum in Analog Playback  6 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #134: Bloviation about turntables by drdna on 2014-05-06 
Browse the content of the threads in new Window  Thread: Ultimate Turntable in Analog Playback  220 Replies 
[quote user="steverino"]You would need to keep the other components the same to test them all but that would inevitably favor some TT designs over the others...[/quote]Spot on. Loads of hype, a bit shy on the experimental proof. It starts out with a ...

Read the Post in new Window Read the Post in Threaded view  Post #220: Interesting. by xandcg on 2022-07-29 
Browse the content of the threads in new Window  Thread: Ultimate Turntable in Analog Playback  220 Replies 
Interesting device: Accurion Workstation_Vario....
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