Let’s dispel the big myth. The Trilogy 925 doesn’t use valves to make the amp sound ‘valvey’ or ‘soft’ or ‘warm’. It uses valves because they are the right device for the task at hand. Their linearity in the preamp means a more natural, less overtly forward sounding signal is fed to the power amplifier stage. The use of MOSFETs and bipolars combined helps to deliver the same more natural, less overtly forward sounding signal to the loudspeakers. This means what the 925 sounds like is a damn good amplifier: the kind that doesn’t draw attention to itself, and that’s the kind you end up keeping for years and years. Very highly recommended.