Speaker Isolation -- Experience with Townshend Seismic Isolation Podiums


Over the past several months the new Townshend Seismic Isolation Podiums have been receiving some interesting and positive press. Living as I do in both an earthquake zone (Pacific NW) and in a busy urban setting with a lot of rumble from construction and passing vehicles I thought these could be worth exploring for my setup. As I was not able to find a US distributor I purchase direct from the UK (via Analogue Seduction, highly recommended). I placed an online order, with follow up to confirm the size and weight of my speakers and about six weeks later they turned up on my doorstep (the platforms are made to order with loading on the cells specific to the weight of your speakers)

The Isolation Podiums are basically four load cells attached to a robust platform onto which you stand your speakers. While not cheap ($2500 for the size I needed) they are very well designed and easy to use. For example I was concerned about being able to move my 275lb Magico Q3s up onto the platforms -- actually it was easy as the platform at 20mm is lower than the speaker spikes so it was simply a matter of unscrewing each spike and shuffling the speaker across. Once onto the platforms fine leveling was easily possible by adjusting each load cell. All in all the podium system is very well designed and works exactly as intended.

But how does it sound? With several days listening experience I cannot recommend this product too highly for anyone who wants to hear the best from their speakers. My room is custom designed with a concrete slab floor so a solid surface but of course subject to external vibration. Prior to the podiums I'd been enjoying deep and dynamic bass but had occasionally felt that the sound became congested in more dynamic and complex material. With the podiums all of this clears up. First impression may be of less bass but as is typically the case this was a result of a reduction in boom and smear and instead more of the open sound of real bass (think of a bass drum as being more "whoof" than "thump" after the initial leading edge - too often the sense of large volumes of air being displaced is lost. In addition I became much more aware of all the rhythmic leading edge detail in bass guitar passages, all the little cues the bassist is putting in. Furthermore it became much easier to resolve bass alongside other instruments. Example in point "Bye Bye Blackbird" by Nancy Harms (https://www.youtube.com/watch?v=yd4tQrndlFw). This opens with deep full bass which is a first test but then quickly becomes quite a crowded and in many systems overloaded mix. With the podium in place all of the instruments became much easier to separate and what had been a congested and even edgy mix became clear.

One final and unexpected change is how you can now more easily hear the recording venue. Listening at the start of recordings the sound of the room itself is a very low level mix of rumbles which (when it's present on the recording) is all too easy to lose -- the podiums help uncover this detail and create a much greater sense of real instruments in space. All in all I'd recommend you give these a try and no need to believe in voodoo to buy in to this tweak.
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Showing 7 responses by agriculturist

Folkfreak

May I ask do you still use the Townshend Seismic Podiums or did you switch to Herzans for your speakers?  I could not afford the Herzan TS-150 but I am thinking of getting myself a pair of these for my NOLA Metro Grand 2s.

Thanks

Thanks for the warning folkfreak.  I won't get the Herzans for my speakers then!  But I am thinking very seriously about a pair of Townshend Size 3 for my NOLAs.  The Townshends would replace my Stillpoints Ultra Aluminums with Stillpoints Ultra Bases with Herbie's gliders underneath the SP bases.  I have the sense that the Townshends will make for a better solution all around including of course primarily the sound.  
Thanks @rcprince for the warning.  However, I believe that the Townshend podiums will actually lower the speakers elevation by as much as a couple of inches.  This, as you guessed, is because of the 2+ inch combined height of the SPs, bases and Herbie's gliders.  I believe the podiums raise the height by only 20 mm.  

I imagine you are very happy with the Townshends?  Did you ever try Stillpoints under the NOLAs.
Thanks @folkfreak and @rcprince for the help with your experience with the Townshend.  I got a pair of podiums from nick at emporium here through Audiogon.  Will post here about my experience after I receive and install them.  I expect the results will be good.
By way of update, I am extremely happy with the Townshend podiums I recently got myself from Nick at Emporium HiFi here on Audiogon.  I got the Townshend Speaker Podiums Size 3 for my Nola Metro Grand 2 speakers.  I replaced the 8 Ultra AL Stillpoints plus Ultra SS bases with the Podiums a couple of weeks ago.  I set them up right away when I got them, although not very well, but even so I was blown away by the improvement I got relative to my previous Stillpoints set up which was itself very good. Then with @mains' (and Nick's) help I corrected the errors in my setup.  Basically my error was that some corners of the podiums needed to be freed up and moved around as the speakers were not bouncing freely although they were moving.  Now everything is fine and its all just great.  The strongest recommendation from me for the Podiums.  And thanks for the help @mains.