During this Pandemic I have been focused on improving the sound quality of my system by reducing the noise floor and modifying the tonal character. The only major audio component I changed was the music server from the Roon Nucleus to the K50 and that was very recently and a very significant improvement. The other changes include switches, filters, cables, footers, tubes and a/c receptacles. The sound quality has improved over 100%, with basically the same primary components except the server.
Sources: Spirial Groove SG 1.2/Centriod/Lyra Etna, Antipodes K50, Meridian Ultra Dac, T+A T1210R tuner
Preamps and Amps: Lamm LP2, VTL TL 7.5iii, Lamm M1.2
Cables: Transparent Audio (TA) XL Gen 5 signal cables, TA XL Gen 5, Snake River Signature Amp and Clarus Crimson HC power cables, Jorma Design digital cables, Wireworld Starlight Platinum Cat 8, TA ethernet
Speakers: Wilson Alexia 1
Accessories: Adona Corp Signature Rack, EdisCreation Fiber Box II and Silent switch, TA XL Power Isolator, CAD GC 1 and 3, Network Acoustics ENO AG, Stillpoints Ultra SS