Synposium Acoustics - Impressed!

I use Symposium Ultra platforms under a couple of different components and the Svelte shelves under my speakers.  Like any vibration damping products, it is a matter of "tuning" so that more damping is not necessarily an improvement--it is possible to achieve a too dry and analytical sound with some components.  I heard a demonstration conducted by a Symposium representative at a local shop where different Symposium platforms were placed under a CD player.  The sound improved with the cheaper platforms, but, their most expensive platform turned out to be too much.

My speakers sit on the Svelte shelf without any kind of footers on the speaker so that almost the entire bottom of the speaker cabinet is in contact with the shelf.  This maximizes the vibration damping of the cabinet (vibration is transferred to the shelf which has a foam core that dissipates the energy as heat).  Because my speakers sit on carpet over a suspended wood floor, this arrangement reduces the amount of vibration transferred to the floor (which would otherwise sort of act like a sounding board).  Again, as a matter of tuning, this works positively for me, but, in another setup, this might be too much damping.  

@larryi 

Thanks for the feedback regarding your experience with these products.  From reading Symposium's materials it sounds like they recommend not using speaker spikes when placing speakers on top of a Svelte shelf.  In my room my speakers sit directly on a hardwood floor (currently using spikes on saucers to protect the floor).  Would you recommend not using the spikes and instead use rubber footers for placement onto the Svelte shelf?

For maximum damping, the shelf should contact the bottom of the speaker.  If you need more height, or to angle the speaker a bit upward, then footers should be placed under the shelf (i.e., between the shelf and the floor).  I wanted a slight tilt back angle, so I fashioned a wooden wedge to tilt the shelf slightly.  This is a bit of a hassle because the svelte shelf has no provision for attaching feet; you will have to figure this out for yourself.

I totally agree i just got the Osiris all copper(legs) rack it is transformative in my system.Im using Symposium Stealth Edition Ultra for my turntable on top shelve of rack.All shelves using Svelte plus.My line conditioners (2) and power amp using Symposium Ultra stealth stands with Trillium copper adjustable spikes.My Magico speaker are using Symposium Super Stealth edition plus with adjustable Trillium copper spikes which go through the carpet to the floor. Every time i add Symposium to the system it improves the sound of the system.I have been using Symposium for over 25 years Peter is a wonderful honest and very helpful person.He knows everything about his products.

Having great results with a Symposium Segue ISO heavy mass version under a 80 lb VPI Prime with single motor flywheel sitting on a 3" maple block on top of my Lead Balloon turntable stand. In a much more needed application with my Origin Live table upstairs on a very average stand it really shows its effectiveness, it is night and day. In both my applications I am using them with tables that have no suspension of their own. I am taking notes of the applications others are using and their results. happy listening.