Chronic Atticus lurker (hoping to get one later this year if Zach offers different woods) & IMO this thread is getting really interesting. I have all SS amps (5 w/1 other F.S.; LC arrived last wk, V281 later this wk, both for balanced use); they sound sufficiently different that I'm not inclined to buy a tube amp (OTL or otherwise) just for the Atticus, if/when I get one. But I'm very interested @Hansotek's results from playing w/output impedance of various amps. At this preliminary stage, looks like these adapters might be a way to use the Atticus w/a SS amp & get better results than would be possible at std (low) output impedance.
I know your results aren't in yet, and maybe you plan to discuss this in longer write-up...but can you characterize any changes/improvements you heard w/Atticus on PJ, going from lowest output impedance setting to the 68 ohm setting?