I have briefly compared a Mastersound Due Trenta SE Integrated Amp with the MC275 when I was auditioning the Harbeth SHL5 at a local dealer. The Trenta just drove the Harbeths to another level with impressive timbre, transparency, dynamics and musicality.
I second Jkuc's recommendation on the Mastersound in the tube amps category.
I second Jkuc's recommendation on the Mastersound in the tube amps category.