YAMAHA AX-392 - Been using for a couple of years and has generally impressed me. OR MARANTZ PM-65SEKI - Picked up for free with a CD-63SEIIKI that I've been after for a while. Thoughts before I go through a long winded back to back? Also In the future for FLAC/stream Playback... Better keeping one of these and a separate DAC or upgrading to something like a YAMAHA AS-501 OR MARANTZ PM-6005 All advice greatly appreciated!