GSV Ethics Gradient
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Is OLED burn-in a problem? We want your input on one of TV’s hottest topics!
shadders
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Hi,
Unless you are thinking of weight, which would be an obvious problem when moving the equipment.
Or are you referring to a foo theory ? Do tell. 🙂
Regards,
Shadders.
GSV Ethics Gradient
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Tinman1952
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Rainer Fink - Senior Acoustics Engineer Europe (Marantz):
“The influence of mechanical engineering on sound quality is really underrated, and sometimes called Voodoo”
“The influence of mechanical engineering on sound quality is really underrated, and sometimes called Voodoo”
shadders
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Hi,
If he was talking about speaker driver design, then i can see what he is saying.
Microphony is only an issue for valves. Maybe poorly manufactured equipment where dry joints etc., are an issue. Else, equipment being sensitive to vibration is another subjective foo myth, which adds to the paranoia of audiophiles getting them to worry about stuff, rather than enjoy the music.
Regards,
Shadders.
Tinman1952
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No he was talking about Hi Fi components…
Microphony affects not only valves but all electrical components, particularly where low level audio signals are concerned. Just because you don't want to accept it does not make it ‘foo’. 🙂
shadders
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Hi,
No problem accepting that it occurs in solid state equipment..... if you have the link to the technical article with a report that demonstrates it exists.
Thanks and regards,
Shadders.
Tinman1952
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Well show me the technical article that states microphony ONLY applies to valves. And not for example….ceramic capacitors……..?
shadders
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Hi,
You cannot prove a negative, if the positive has not been proven.
The onus is upon you to provide the evidence to back up your statement.
Regards,
Shadders.
Tinman1952
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Well I would suggest the onus is on you to support your statement….in contradiction with professional audio engineers!
shadders
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Tinman1952
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GSV Ethics Gradient
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My experience is that my isolating non-valve hifi from vibration yields audible benefits, so I do so.
But we're straying off topic, I would suggest.
But we're straying off topic, I would suggest.
How to Stack Your Hi-Fi Units - Zespoke
The way we listen to music may have changed dramatically in the past couple of decades, but it is still possible to stack hi-fi equipment to make the most of your media unit. The term ‘stacking system’ might sound a little old fashioned these days, where wireless streamers have replaced bulky CD...
www.zespoke.com
abacus
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Microphony in electronic components has been known about for decades and is well documented, (Even Wikipedia has a page on it as it’s that common) however it is very small in solid state and can be virtually eliminated by correct design, (There is a reason Hi-End amps have a heavy solid case with damping feet) so you are not going to be able to hear it as it is dwarfed by everything else in the audio chain. (If you are paranoid just stick a rubber car mat under your components and the job is done)
As to valves (Tubes) just do the pencil test to see how bad it is with your particular amp.
NOTE: we are talking Hi Fi here not live performances, so forget about it with solid state. (No matter what some manufactures try and con you into believing)
Bill
shadders
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Hi,
In reference to the wiki page, they do indicate ceramics capacitors are microphonic, but these should never be used in the analogue chain of equipment, since film capacitors are used (or should be).
Those film capacitors that are microphonic are not used - the ones used, the dielectric used is too hard.
It is easily tested, turn the volume up to maximum and no music playing obviously, and then tap the equipment with a pencil or other. The pencil tap vibration is much higher than speaker vibration feedback.
Regards,
Shadders.
In reference to the wiki page, they do indicate ceramics capacitors are microphonic, but these should never be used in the analogue chain of equipment, since film capacitors are used (or should be).
Those film capacitors that are microphonic are not used - the ones used, the dielectric used is too hard.
It is easily tested, turn the volume up to maximum and no music playing obviously, and then tap the equipment with a pencil or other. The pencil tap vibration is much higher than speaker vibration feedback.
Regards,
Shadders.
Tinman1952
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GSV Ethics Gradient
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I have the feeling we'd be best off agreeing to disagree here. Life's too short.
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