Hi guys-- well i decided on the bryston for my amp needs. Only question i have is the 9bst vs 9bsst... I can get the st for 2450 vs 3100 for the sst. From what i read and hear-- there is no sonic difference-- just some circuitry and a change to the heat sink--- is it worth $600.00 for the difference? John-Tompkins--- you out there?--lol seems like you might have an opinion here-- thanks for all your help guys.