My Favorite Tweaks, What is yours?

The Stack Smoothlan has made a nice difference in my system. 

+1 on Puron

Also:

Neodio B2 Isolation footers

Stack Audio Auva 100 speaker isolation footers

Stack Audio Evo equipment isolation footers

Front Wall Corners and Rear Wall - Air-Gapped Cavity Rock with Rockwool Comfort Batt Porous Absorption Panels (Finished as Aesthetic panels for low frequency control

Side Wall, Ceiling - Broadband Porous Absorption Aesthetic Panels and Designed Diffusion slats

Decay Rate Control - 380ms

All DIY with the panel images printed onto the panel sheets

Subwoofer integration with DIRAC Live with Bass Control

Townshend platforms for my speakers. Game changing. Remarkable difference.

A friend tried with his speakers – they already had Gaia footers – and that still convinced him to get the podiums.

It's not subtle. Hans did a video.

System grounding.