Townshend Audio Seismic Podiums Review


Seismic Isolation Podiums: A Game-Changer for Bass Control and Overall Sound Quality

After attending the Capitol Audio Fest, and returning home to evaluate my system against what I’d heard, I was reminded just how much I love the sound I’ve cultivated in my setup over the years. In many ways, it stood up favorably against some of the best systems I heard at the show—some costing many times more. That said, the experience left me inspired to try to push my system further and find how I could make it even better.

One issue I’ve been wanting to address is the bass boom in my room caused by my large speakers coupling with my raised floor. My listening room is on the lower level of a split-level home with an open floor plan and a suspended floor that behaves a bit like a drumhead. While I’ve installed bass traps in the corners and experimented with absorbers and isolators, I was still searching for a way to decouple the speakers from the floor entirely.

That’s when I discovered Townshend’s Seismic Isolation Podiums. I was already familiar with Townshend’s supertweeters, but I had no idea how highly regarded their isolation products were. After combing through countless reviews (seriously, I couldn’t find a bad one which was amazing), I reached out via an Audiogon listing to Townshend’s Worldwide Sales Manager, John Hannant, for guidance. He’s a really responsive guy, and he recommended and sold to me the Size 5, E-weight Podiums for my massive 250+ lb Dynaudio Consequence Ultimate Edition speakers.

The Podiums arrived in Virginia in under a week, all the way from England, and my first impressions  were:

1. They’re frickin big.

2. They’re frickin solid.

3. How on earth am I going to get 250 lbs speakers onto these spring-loaded platforms

Thankfully, the process turned out to be much easier than I feared. Using Teflon furniture sliders, I carefully tilted and slid the speakers onto the Podiums, fine-tuned their positioning, and bubble leveled them according to the directions. Despite how unnerving it feels to see, and feel, my hefty speakers perched on a bouncy interface, the results speak for themselves: the bass response has been transformed.

The muddying boom I’d been battling is gone, replaced by bass that is tighter, quicker, and far more defined. It’s truly amazing how much of a difference these Podiums have made. Beyond the bass improvement, they also reduce vibrations transferring from the floor to my equipment rack, which further improves other aspects of the sound in more subtle ways. Everything is just a little better.

The build quality of the Podiums is exceptional, as you’d expect from a product hand made in England essentially of just heavy specialty coated steel, carefully chosen tempered springs and a custom rubber dampening system.  While they’re not inexpensive (what is, in this hobby/industry), they deliver on every claim I read about, and can be considered a lifetime investment because there is nothing to wear out.

Townshend has truly created a stellar product, backed by fantastic customer service. The Seismic Isolation Podiums have exceeded my expectations, and I can’t recommend them highly enough to anyone looking to elevate their system’s performance, particularly if resonance is a known issue.

Kudos to Townshend for such a well-engineered solution that makes a real difference!

Note: I have no affiliation with Townshend, nor was any monetary or product provided to me to generate or influence my review.

hollandw

Showing 3 responses by prof

I seem to be one of the very few people who have tried the Townsend products under my speakers and who chose not to use them.

 

When I was doing tons of testing of isolation materials while building my turntable isolation base, I settled on the Townsend isolation pods.  There was no footer or material they produced isolation from vibrations even approaching those pods. So they are sitting beneath my turntable base.

 

For similar reasons, I tried springs under my  floor standing speakers (in this case Thiel 2.7s) which sit on an (old house) wood floor.  I tried some really cheap spring footers from Amazon and was absolutely amazed at the Sonic difference springs produced beneath my speakers.  They became almost electrostatic like in terms of disappearing and sound staging .    Although I didn’t like all the changes.  It changed the sound to a brighte and more lightweight tone than I preferred .  I figured I’d try a real deal approach with the Townsend isolation bars.  The Townsend Springs were of course more carefully designed for the purpose, and also the bars were made to not raise the speakers up, so as to maintain the original tonality.  

 

When I tried the Townsend bars , yes they were clearly better than just the cheap springs.  And they did maintain the tonality of my loudspeakers much better, while providing the tightening of the bass and more of a “ disappearing” act with the speakers.  

 

However, there were two issues I couldn’t get over.  The first is that they did change the tone of my speakers a little bit, and it was enough that I liked the tone less than when speakers were sitting on the floor.

 

Second of all , justice with the cheaper Springs, it made my speakers have more of an electrostatic type presentation:  I felt the sound less.  The sound seemed less grounded and connected with the room, less dense and punchy.   It became a bit more of a cerebral presentation.

 

When my speakers were simply on the floor, the sound became more solid, impactful, and realistic, including in tonal quality.

 

So I finally sent the bars back to Townsend .  That was surprising. I certainly wasn’t expecting that.

 

That sent me in another direction, or I decided that I wanted some more bass tightness, but with some at least partial coupling with my floor.   I experimented with tons of materials and footers, including the isoacoustics Gaia.   

 

I’ve ended up with my speakers on a custom-made granite base , which is two layers of granite with some sound damping material in between them - super dead sounding.  And those are sitting on for hockey pucks, with some shallow spikes under the hockey pucks into the rug and wood floor.

Above that my speakers have Isoacoustics Gaia on the back of the speaker, and the outrigger on front is spiked into another couple hockey pucks, which raise the angle of the speaker just right.

 

This is produced the best I’ve gotten so far .  Tighter base, but still rich and punchy with lots of room feel, the most gorgeous tonality I’ve heard from the speakers, with the sound remaining solid.

 

I totally understand why people like using the Townsend products under their speakers though.

Mitch,

I was already using Herbie’s fat gliders under my Thiels.

I then tried Isoacoustic Gaias, And they provided some nice tightening

of the bass, although I wasn’t totally sure about this, slight tonal change.

however, it was shortly after that that I moved my Joseph speakers back into the room, And all my experiments continued with stuff underneath the Joseph

Speakers.  I tried everything from MDF constrained damping Shelves

To commercial “Pro gear” Foam based isolation Bases, All sorts of different material footers, Even Combinations of cedar wood railing end caps beneath

the MDF or granite bass.  All had their own effect on the sound. 

 

@mitch2 

That’s always a concern of mine, But since the

Herbies Gliders are generally pretty flat and screwed right up

Into the base of the speakers (Thiel 2.7s) They didn’t seem to change the tonality

Or at least not to a degree, that bothered me. 

I think the Herbie gliders For me were most useful simply and being able to slide the speakers Very easily on my carpet to adjust their position.

If I was looking to the hone sound of the Thiel speakers It’s my hunch that I’d Get

More obvious changes with some other products.

But I’ve really liked the way the speakers sound just sitting on my floor,

And when that sound changes too much, I start to get less satisfied.