Townshend Springs under Speakers

i don’t think you can generalize what is an ideal speaker-floor interface method across all speaker types and floor types; that is a mistake.

how my 750 pound each (x4), twin tower, Evolution Acoustic MM7’s work on 6 inches of concrete is different than a speaker half or less weight on a suspended wood floor. then take that smaller, lighter, speaker and add multiple subwoofers to it.

that smaller speaker on the trampoline of a suspended wood floor being also energized by a bunch of subs will likely get a net benefit from the extreme decoupling of the Townshend springs. then consider the cabinet build quality at particular price points and that is another factor favoring extreme decoupling.

my MM7’s are over-built with 2000 layers of baltic birch and pressed together by a 6 ton press. you have 750 pounds of mass and a concrete floor. i still use Wave Kinetic 2NS speaker decoupling footers for a small degree of decoupling which does eliminate smear.

http://www.chambersaudio.com/product/wave-kinetics-2ns-loudspeaker-interface-system/?doing_wp_cron=1...

horses for courses.

passive resonance treatments are very much a matter of context. one size does not fit all.

btw; my speakers are voiced using the 2NS footers on a concrete floor. i have visited my speaker builder multiple times. he set up my speakers in my room.

Charles,
That’s great. They’re really amazing. I don’t know if you’re aware of these, but a couple of years ago, Robert suggested that I night add the APCD4-Inverts between the upward facing cones and the speaker bottoms. I got them, and it not only improves the effect, but it prevents further damage to the speaker bottoms and makes small placement adjustments so easy.
John
Audio Points™ by Star Sound Technologies

It’s simple to understand and it was understood in the 80s buy two prominent speaker builders at the time, Carver, and VMPS.

They both understood that cabinet resonance transferred to a common medium will induces a third passive driver. There is no way to USE the signal without introducing a serious timing issue between the air being pushed from the drivers, vs the arrival time of the floor, walls. and ceiling. The floor is quicker..

Smearing happens by funneling all the different frequencies into ONE common medium, (via spikes)

What I learned from Brian Cheney and Bob Carver is the term BASS cohesion. The second is BASS propagation

The signals that were being transferred to the floor are now stopped.
They decouple, easy fix. BUT we don't raise it to much because of bass LOSS, WHY? Bass uses boundaries to GROW or propagate. YOU will hear the bass from that speaker go DOWN in volume, ACTUAL volume..

Cabinets do not move if they are made for one thing BASS.

The monitors can’t move because they weigh 425 lbs each and the BASS is in a different cabinet..

We help a CABINET dissipate the vibration a few ways. No bass in the monitor cabinet and narrow the baffle face to reduce the collection point for second hand bass.

In the bass cabinets use sound coat to reduce resonance issues THICH walls of MDF and bracing to reduce any panel lengths over 8". The cabinet is MADE for bass, not every frequency on the planet...

Pods, Springs, Air ride or a good sand pit the SUB cabinets. (I'm using OB servos by GR)
Pods, Springs and or air ride the Mid Bass Cabinets. My MB LS Columns
Pods, Springs and or air ride the Monitor cabinets. VMPS Elixirs..

Dear Mr. Richard Vandersteen, Spikes?

With great respect and regard

From my read, Star sound ain’t springs. Looks intriguing and the sane , at least two seem to use to good effect. Reasonable $, will give them a whirl under something.

Mike - Nice to see you weigh in. Like you, i have heard my speakers at both Vandersteen house in his massive room with concrete floors and again as he set them up here on my suspended glue/ lam I beam truss floor.

Horses for courses.