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Has anyone had experiences good or bad with speaker isolation or isolation in general ?

hi
i have been enjoying buying and listening to hifi for some 35 years now and have seen many items come and go.I have also been interested in the audio cable discussions and i agree that cables do make a difference how much of a difference is a very individual, and a system dependent situation. There has been nothing that has got me so excited and improved the sound of my system that has ever made me want to really share it with fellow audiophiles until i started to try various isolation products.With so much choice from affordable to very expensive i found the hole subject very confusing and i did not know where to start. After trying lots of various products all shapes and sizes with very different results i decided to read reviews which is something i do not usually do to get some advise.I read a review on the Townshend audio seismic podiums they are isolation platforms that go under your speakers .This company is very famous for isolation ideas and have been around some 50 years based here in the UK they also had a factory in the USA back in the 1980s. I contacted Nick at Emporium hifi  and he agreed to install a pair for me so i could have a listen. My speakers are sound-lab dynastats which i use in quite a small room but with the adjustments give a nice sound. After installing the podiums we both sat down with jaws hitting the floor these podium things completely transformed the sound of my system to absolute perfection. After all this time trying various products under my equipment i have now isolated my speakers and the sound quality is exactly what i believe we all are chasing, my sound-labs are now transparent no more bass problems i have just got one big 3D sound stage the dynastats are now very open with deeper much better bass everything is perfect. I now believe isolating your loudspeakers is the first port of call i was so impressed by the Townshend audio seismic products i now sell them as i have never come across anything that has given my system such a great upgrade , the sound is the same as before but now its just so much better its playing deeper bass but tighter much more resolution and no boom , the midrange is so much more human sounding realistic and spacious with the top end so refined and perfect , is anyone using podiums and had the same experiences i would love to hear from you thank you john 
mains
hifiman5's avatar
hifiman5
1,611 posts
 
@kosst_amojan
Religion plays no role in my preference for decoupling. It works in my environment and experience. I adhere to no dogma about it, I just think it is something people should experiment with and let their ears be the judge. My guess is that the creator cares little for my audiophile preferences.

Might "science" be your religion?
geoffkait's avatar
geoffkait
14,147 posts
 
If decoupling, and I mean competent decoupling, didn't work and and didn't keep most seismic type vibrations from getting up into the electronics then LIGO - long distance interferometer gravity wave observation - would not have been successful last year in detecting and observing gravity waves. LIGO would have done so a long time ago if it could but the sensitivity of the experiment required development of exceptionally robust isolation systems.

As has been pointed out already, resonant frequencies of cartridge, tonearm, platter of turntables as well as the resonant frequency of the laser assembly (spring mounted!) of CD players and the Fr of all the various electronic elements in components require relatively robust isolation devices, too. That's precisely why audiophiles discover that more expensive iso systems are superior to the usual DIY inner tubes and tennis balls. It's because their resonant frequencies are much lower and therefore more effective at 10-12Hz or wherever.
kosst_amojan
2,095 posts
 
@hifiman5  Buddhism is my religion. The Buddha said to try things for yourself and determine their worth and take nobody's word for anything. I simply haven't been able to demonstrate to myself that decoupling speakers produces benefits on any scale. I'm a bit curious what people are hearing because what people here are trying to accomplish is exactly the opposite of what I've tried to do, and what I thought was conventional wisdom.

geoffkait's avatar
geoffkait
14,147 posts
 
The word "floating" can be misinterpreted. Floating on a carpet or something that’s not rigid is not the same thing as "floating" on springs or a magnetic levitation system - if one were feasible for speakers which it’s probably NOT. It’s the low pass mechanical filter characteristic of mass-on-spring isolation systems that is responsible for the improvement to the sound. And the fact that the lowest frequency of speaker cabinet vibrations is sufficiently high, let’s say 25Hz or 30 Hz if you’re lucky, that % of transmission to the floor is very very low, based on the resonant frequency Fr of the mass on spring system of the speakers and springs, let's say 3Hz.

lou_setriodes's avatar
lou_setriodes
414 posts
 
Back in the day, in the mid 80's or so, Mod Squad came out with Tip Toes.  For about $7 for a 1.5" metal triangle cone that looked like a large silver Hershey Kiss, I had them under my amp, preamp, TT and speakers.  They were amazing and made such a huge sonic difference.  The threaded ones on my TT were like $10 each.

Then other mnfr's started catching on and things went nuts.  The same cones were now $50-75 each or more.  Were they any better then the $7 ones, Don't know, I never listened to the more expensive ones, but I had my doubts.  I gave them to a friend to try and never got them back.

Nowadays, I have very small light mini-monitors.  Instead of spikes, I went to Lowe's and have hard rubber stoppers under my speakers that cost me like $1.50-$2 each and use 3/speaker.  For heavier larger monitors, I bought larger cork stoppers under each speaker.  I think they sound great lifted up an inch or so off the floor or shelf.  

Spikes may sound better, but for me, it's like splitting hairs.  I'm quite content to spend a few bucks on hard rubber stoppers and it seems to make a huge difference and looks very nice as well.  
Lou
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