Townshend formerly used air-platforms as a method of isolating equipment and speakers from vibrations (i.e., Townshend
Seismic Sink) and have since switched to using pre-compressed, damped, springs in the form of the Townshend Seismic Isolation Pods, which serve the basis of their current line-up of isolation products for electronics, stands, and speakers, such as the
- Townshend Seismic Vibration Isolation Platform for electrical equipment,
- Seismic Isolation Podium for speakers, and
-
Seismic Vibration Isolation Stand
Links below to the Townshend website and to a review of their pod. Search for other positive reviews of their seismic isolation solutions.
http://www.townshendaudio.com/hi-fi-home-cinema-equipment-vibration-isolation/hi-fi-home-cinema-equipment-vibration-isolation-platform/ https://positive-feedback.com/Issue75/townshend_pods.htm Some of us are using free-standing, damped springs, which are not as elegant a solution as the Townshend Pods but when properly sized and implemented may offer the same level of performance, or close to it, for much less money.