I currently have a Bryston 2.5 SST2 and I'm thinking of upgrading. My setup for music is a Luxman CL38u SE tube preamp w/a pair of Aerial 5T's. My plan is to use the SST2 as a mono block for my Aerial CC-3 center. How much of a step up are these cubed amps vs the SST2 and and what's the difference between the 3 cube and the 2.5 cube.
