Hi Halcro,
Congras on the Herzan! An amazing piece of hardware we TT owners all wish for. I have the Minus K and I have noticed the biggest difference in using this passive isolation platform is when the volume is turned up.
You summed it up perfectly “There is absolutely no strain or stress to any music at any volume and as you turn up the volume...so you want to continue turning it up”
The degree of effectiveness in using an active or passive isolation platform largely depends on the amount of air-borne energy in the room. My TT sits fairly close behind my left speaker and sub. Prior to using the Minus K in my system, on one occasion, I was able to make my Talea/Titan jump off the record groove when playing “1812 overture”. In using the Minus K, the playback sounds consistently beautiful regardless of the volume setting.
The beauty with the Herzan platform is as simple as “plug & play”. The Minus K is a passive system that requires careful set-up (centring the spring, and is load sensitive) to maximize performance.