The room is dedicated for listening and has some acoustical treatments as well (for example behind the speakers). Also, several hundreds books help dampen the room.
Hungarian made audio PC with linear power supply, heated central master clock and Paul Pang V5 USB card. Runs Ubuntu Linux with Roon Core and HQPlayer.
AudioQuest Carbon USB A-B
Between Mac and DAC
Aqua La Scala MKII Optologic
NOS R2R DAC from
Townshend Audio Fractal interconnect
Between DAC and preamp
Townshend Audio Allegri+
Passive autoformer preamp
Townshend Audio Fractal interconnect
Between preamp and poweramps
Audiopax Model 88
Brazilian tube amp with unusual solutions using KT88. Very good with Avantgarde horns.
Townshend Audio Fractal Speaker cable
For speakers
Townshend Audio Seismic Isolation Pods
Resonancce controll for electronics
Townshend Audio Seismic bars for speakers
Isolation for the speakers
Wolf von Langa Son
Two way Loudspeaker with electromagnetic drive for the mid/bass plus special AMT Heil tweeter. Back side has a passive driver.
I'm surprised you are able to get great sound with the Nanos that far apart. Neither mine, nor my friend's, work well if there is more than 9 feet between their inner corners. I would suggest you try moving them closer together - you might not know what you've been missing. Avantgarde also recommends it. Setting the speakers up in the room correctly is much more important than room treatments, in my experience. Good luck!