@khragon I replaced the rear rubber feet with edenSound regular brass hemispikes. These are NOT threaded (they have a flat surface). I used double sided adhesive discs.
I don't recommend using isoAcoustic GAIA for the front since it's important to maintain the angle (and height) that Cube's designers/builders chose. You can play with both the height and angle, should you choose to experiment, however results will vary.
I used Townshend Audio's Seismic Isolation Platforms specific to the Nenuphar's weight and size (footprint). I ended up removing them. Others, I believe, continue to use them. Mentioning this as your results may vary based on a number of factors.
If you search for Eden Sound and Townshend within this thread, you will find posts and discussion regarding isolation.
I don't recommend using isoAcoustic GAIA for the front since it's important to maintain the angle (and height) that Cube's designers/builders chose. You can play with both the height and angle, should you choose to experiment, however results will vary.
I used Townshend Audio's Seismic Isolation Platforms specific to the Nenuphar's weight and size (footprint). I ended up removing them. Others, I believe, continue to use them. Mentioning this as your results may vary based on a number of factors.
If you search for Eden Sound and Townshend within this thread, you will find posts and discussion regarding isolation.