Experience with Townshend Seismic Podiums on Concrete Floor (they're great)


​I have tower speakers on a concrete floor covered with carpet. Recently, I tried out the Townshend Seismic Podium (size 1)  on my Ascend Acoustics Towers (RAAL tweeter) for about 4-5 hours. Here is a brief recounting of my experience.

At first, I set up the podiums and just listened to well known tracks; next, a few days later, I used that same set of tracks to compare, A & B, the speakers on the podium vs. without the podium (but at the same height). A friend with me also compared this A/B setup. We listened to a simple jazz arrangement, a Mozart aria, a rock recording by Chesky, and a country/rock piece. All were well recorded.

The difference made by the podiums are not subtle. In general, it is as if the entire sonic presentation was brought into focus, as if a light veil or layer of dust had been wiped away. It organizes everything; it makes the parts of the whole make sense.

More specifically, these were the effects I noticed: 

Bass was slightly fuller, much cleaner and more distinct; for an electric bass, this meant that rounded notes that previously blurred in a sequence (too legato) become individual notes. String bass notes gained dimensionality and texture; the finger on the string became more real, and the resonance of the large wooden bass got fuller and richer. Rhythm sections were better able to stand out *as* rhythm sections, that is, as musicians who are working together.

As far as midrange and treble go, there was -- as with the bass -- more definition, clarity, detail. They sound more like instruments-in-the-room rather than the presence of instrument appearances. Not much about their tonal character changed, but they became more palpable and more exactly located.

That brings me to the soundstage. The width of the soundstage grew by about 10-14% — 5-7% on each side. It was remarkable. Instruments gained space, separation, and definiteness of location. They didn't sound apart or isolated but just more distinct, separated from other instruments. I imagined this as fidelity to the way the microphone recorded them or as the mixing engineer intended. 

When I ordered the podiums, I made sure to ask for the ability to return them. I was assured that I could return them if I just paid shipping. (No restocking fee.) I was skeptical and wanted an escape clause. I had watched a few videos and was curious about whether Mr. Townshend's scientific claims would translate into audible differences that would be worth the money (the podiums cost about 1/3 of my speakers' cost). 

Well, my skepticism is gone — and it disappeared rather quickly at first, and then after careful comparison. I am keeping the Townshend podiums. Are they better than Isoacoustics footers or other products? I don't know, because I have not compared them. But they're making a huge difference and, should I want to put other speakers on them, they'll fit the others I have, easily. I'm pretty sure I'll never give these up.

 

128x128hilde45

After doing a lot of reading and video watching myself I think solutions from other companies are going to look virtually the same on an accelerometer but sound different from the listening position.One thing everyone seems to be in agreement on is the Townshend's superior soundstaging.I like the wide plinth and ease of leveling.

Thanks for posting your impressions. I have a pair coming for my Fyne F703 speakers.

A friend with active ATC speakers (SCM50ASLT) went from Iso Acoustic Gaias to Townshend Podiums. He told me the improvement wasn't subtle. Two to three times the cost but he felt it was more than worth it.

We'll see. Glad to hear they worked out so well in the OP's system.

Interesting post. I have Vandersteen Treo's that have a down firing port for the bass drivers. Currently have them mounted on IsoAcoustics ISO-Puck 76's on a wood over concrete floor. 

Any comments on how I would accommodate the Townshend Seismic Podiums for this type of a speaker? Thanks.

hilde45: congratulations! I’ve been curious about Townshend podiums for a couple of years now, but remain unwilling to shell out for them. Your testimonial, and ozzy’s too, bring me that much closer.

But let me share my own experience with acoustic decoupling (I have walnut floors, not concrete; spikes turn the floors into uncontrolled passive radiators). A friend has the IsoAcoustics Gaia, and let me try them. They were certainly an improvement over spikes or nothing at all, and for the reasons you both catalog here. But I’m cheap; the Gaia were also more than I wanted to spend.

So I tried sorbothane feet purchased on eBay; they’re attached to threads that fit the spike holes on my tower speakers. Wow! Better than the Gaia, and again, for all the reasons mentioned here. The speakers wobble when provoked, but I’m past the age of children, and my dog is well-behaved. In fact, from what I can tell from Youtube videos, the sorbothane does very much the same thing, in terms of wobble, as the Townshend podiums.

They cost me less than $60 for all eight of them. Just sayin’.