The effect of vibration on the music playing system or

Many people report UFOs and alien abduction.

Paul

 

I suspect there might just be a subtle distinction between the two....

 

If it fills a rainy afternoon trying different materials is there any harm?
If you have externally induced amplitudes of vibration that exceed those involved in the respective tranducers ie stylus/groove or cd mech/laser/pits the elimination of vibration makes perfect sense when you also take into account the inherent resonances of the respective structures and the posibilty of mechanical feedback in the case of a TT or excessive error correction with CDP. Whether the use of magic cones or sheep bladders under your kit is the way to solve it is entirely dependant on your own personal circumstances-no one fix fits all IMO.
You could just move it into the next room as another poster said tho' that hardly practical for many.

 

absolutely not.....open any sensible suggestions..

we're thinking of the vibs prod by the cd players own motor as wellas external sources...is that what you meant?

Nothing magic about it as faras I am aware





(don't do sheep bladders...I can't stand the sight of blood )

...and not for me.

Would be an intersting experiment tho'.

 

Pretty much all sources, I know a lot of cd mechs already sit on sorbothane washers so it's not like manufacturers aren't aware of a need(VRDS springs to mind in this regard too).
I find it a tad less 'understandable' where amps are concerned tho' but again line the drummy case with eDead for about £2 no harm done and it'll certainly stop feeling like a piece of cheap mass produced junk

 

More people believe in UFOs?

Try a better argument. Try defining and quantifying what vibration you're trying to avoid, and what affect it might have on the equipment and how your system reduces it.

Paul

 

interesting

...and yet microphony in valves IS well recognised?

 

And a recent test published in Hifi News I believe found tube dampers had absolutely no affect whatsoever on the actual resultant sound. This mirrors my findings.

 

ok.

Mine responded quite well.

 

I played around with tube dampers (only the rubber rings), but ended up concluding that they made no audible difference in my system.

 

anyone else?

 

I only think isolation/suspension makes sense on components with a mechanical device. Not 100% sure about speakers though. The hard thing IMO is knowing the frequency of the vibration you're trying to isolate.

 

I think this is the thing for some of us David. It's a big jump from proving thing vibrate to showing definitively that this causes audible results. And sadly there's a sad lack of any published results to help us make that jump.

People may stick something under a CD player and shout eureka, but we all know that's not any real form of acceptable proof. That's what I'd like to see - some evidence that there is a direct audible improvement.

 

Evidence of a physical change would do. We can argue about audibility later.

Paul

 

When using some Nos Phillips some time back in an Audio research LS7, I found the tubes to be microphonic, the sort of thing tube dampeners can help with.

Funny enough Audio Research supply them now.

 

I myself use a Krell power on a Mana Reference. I also like to dampen ringing casework.

My old Technics CD transport used to skip at high volume, a big bag of kids play sand stopped that, and a granite slab on the top panel helped also.

 

They clearly had an effect with microphonic valves which were set off by the source selector on the LS7, they did not ring after being damped. I would also hazard the enviroment, amplifier and valve type used may play a part.

 

I'm really confused about this.
Healthy skepticism is always a good thing, at least until you've completed dems yourself to prove it, at least to yourself. After that, you can have a genuine opinion. Having said that, it's still an opinion and is not a fact.
So what's the deal here. Have you tried things and they didn't work, or never given it a go?
If you have, then an opinion that you don't think it's worth the cash is fine, but surely I'm allowed to think otherwise?

 

Mike we can all "think" what we like. I think we are missing evidence and so I think I would like to see some. I've tried all kinds of isolation over the years. I now just use a heavy solid surface and no spikes.

 

I did it(eDead) to my T1, DAC1 and MC2 Power amp(the latter was already built like a brick and sits on the carpet)-tap either now and all you get is a "duh" has it improved the sound? couldn't say for sure but it hasn't made it worseI do remember reading somewhere part of the reason some arm/tt combos work better than others is down to sympathetic resonance spectra ie where peaks in one component are sorted by dips in another-obviously you wouldn't want both to be resonant at similar frequencies as this could probably be susceptible to external stimuli.