Ok Thanks Guys.. so the Trim is gone, the USB port has never been used, and the documentation needs to be updated..

I will give them a call to let them know .. at least the manual should be up to date.. it's funny because the picture / diagram does not show a trim button or a bypass setting on the xover. but the " steps" do talk about trim, bypass but not subsonic switch..

Acoustic Zen Adagio, Veritas center, Axiom EP500, QS8s, Anthem AVM20, MC20,Adcom GFA7400