Demoed the synergistic research tweaks at the Munich hifi show. They had a room where ask the following tweaks made a clear difference. Take the tweak out, and the loss of soundstage, lack of focus, and muddiness was very apparent
3. ECT - these are small things, retailing at 300 dollars for a pack of 8. You can put them on the chips inside a component, on the fuse, and ok the sending side of cables.
4. The active isolation bases
5. The black hole, which is a small black thing you can place between the speakers and functions as a bass trap.