Follow up on the Angstrom. Ok, I figured everything out and it is now in my main system. The setup is as follows. Shanling CD100, Angstrom pre, Ayre V3 amp to Martin Logan Ethos speakers. I'm quite satisfied with the sound but I have no remote control of the preamp which, except for volume control is no big problem. As much as I like the Angstrom (crisp and crystal clarity abounds) I will have to replace it if I'm unable to locate a remote so am asking for suggestions.