Thanks. They Ayre is USB only. I only use spdif in. Ayre working on an spdif only model but they have a directon issue. Not sure if they want to make a $4,000 dac or a $15,000 DAC. My question was only as respects the Bryston. My Benchmark, in my system, doesn't sound bright at all. It is very musical, wide soundstage, detailed. Powercords and IC's made a big deal with it. I also have a very neutral system, which, I feel, really makes the Benchmark sing. I don't want to go for a lateral move. if I change Dacs, I want it to be a large upgrade, if thats possible. Maybe Esoteric D07 when available to audition. The Bryston catches my eye for the price.