Hi. Converting to an all digital system. Wondering if anyone can help. Will be using core audio mac-mini, ps audio perfect wave dac, quicksilver audio tube mono blocks, vandersteen 5a speakers. Would like to try perfect wave direct to amp without a pre. Need to work out nas storage and library systems as well as starting digital file collection. Although would like help integrating separate digital sources into whole house system. MAC based at this time. Old guy happy to compensate for time/expertise. Thanks. Don 412-716-8073