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

@brownsfan  Good point. Type 4 (seismic) is part of type 3, and would be small in comparison. It would be nice to see an interview with a speaker maker that addressed these vibrational issues in these terms. 

@benzman  -- I love your description and it is certainly what I heard, especially: "My biggest takeaway from them are the space around the instruments and not only the depth of the stage but the actual placement of the players. Live recordings are especially impressive as you will hear the audience in front and the singer a few feet back and guitar player a couple more feet back and to the left  and the drummer 12 ft behind the singer but 8 ft behind the guitar player etc. I guess you would call it layering . 
All the other goodies apply, texture in vocals, improved bass control, etc."

@hilde45 I agree regarding the desirability of having the manufacturers actually get down into the grass with consumers on the physics and their engineering answers to the physics.  Unfortunately, their first task is to retain a competitive edge in a competitive market.  So everything runs through the filter of how does this advance sales.  Nothing wrong with that.  That is how the free market operates.  Also, not all audiophiles are interested in understanding the science, indeed, some people are put off by excessively technical explanations. 

It is easier from me to get from St. Louis to the west coast than it was for Lewis and Clark.  The difference is entirely one of knowledge and understanding.  It is hard under the best of circumstances to get an audio system to really sing in our homes.      Starting from an understanding of those things that always must be true in every instance is very helpful.  That can take us a long way, but in the end, there are important things that can't be known by a home audio guy in sufficient detail to obviate the value of empiricism.  Sharing of knowledge and experience in this forum is really a somewhat efficient and cost effective way to mitigate the inefficiency inherent in pure empiricism.  OK, I've used up my daily quota of big words and need to shut up. 

It is one of the few audio products that is universally praised by people who actually own them.

 

I agree the overwhelming proportion of reports on the Townshend isolation base/bars are positive.  That's one of the reasons I tried them (Isolation Bars).

Unfortunately I found they weren't to my taste.  I lost a bit too much "room feel" in the bass and they changed the tonality a bit more than I wanted, and also reduced a bit of the "body" of the sound.   My speakers sounded a bit more tonally full, dense and energetic without the Townshend bars so I returned them.

Most people keep them, though.

 

 

@prof 

Unfortunately I found they weren't to my taste.  I lost a bit too much "room feel" in the bass and they changed the tonality a bit more than I wanted

Good evidence that (a) the room-speaker dyad is a huge factor which cannot be predicted with certainty and (b) that taste is the final arbiter.

@hilde45

By it I mean the actual impact seismic activity has on most peoples hifis. Also the write up tended to blur the lines between seismic events and other things. Probably done by a marketing guy and signed off on to increase the appeal of the product. The effect of seismic activity seems to be the focus of the marketing to differentiate the product from competition. So it comes down to the difference between robust science and marketing. It’s a business so marketing rules. Nothing unusual there.