Need highly transparent detailed amp---how does Pass XA25 compare to Gamut D100/D200 MKIII

Giving up on the SET amps.  I don't want to replace another expensive tube and the heat from 805 tubes is a warm weather deal breaker.  Considering the Pass XA25 but maybe the Gamut and its higher power rating would be a better option and allow a greater range of speakers to be used.  Can anyone comment on how the Gamuts compare to the XA25 in terms of detail retrieval and transparency (and any sonic differences).  Many thanks!