Has anyone auditioned or own Viva Aurora amps

I'm thinking of replacing my wonderful Lamm M2.1 amps for a pair of Viva Aurora monoblock amps. I'm using a Thor Ta1000 linestage pre amp and an Audio Research PH3SE phonostage with Kharma Ceramique 1 speakers (8ohm load 92 db effiency) The Viva's are SET based on the 845 tube at 21 Watts RMS. Any advice ?