Experiences with NAD M51 DAC


I am considering upgrading from my PS Audio DLIII. I currently use it with a M2Tech Hiface USB/SPDIF converter, fed from MAC mini serving redbook CDs as AIFF, via Pure Music.

The NAD and the W4S DAC2 are under consideration. May also upgrade the USB/SPDIF converter. Much has been posted concerning the W4S.

Has anyone have experience with the NAD, with or W/O USB/SPDIF conversion they would share? Thanks in advance for your thoughts.
mesch
The Audiophellio2 remains a top contender for my $$$. I wonder how the Bel Canto mLink or llink compares to it?
As an update to my original post, my decision has come down to:

Purchase a M51 now, or, purchase a Audiophellio2 for my PS DLIII and upgrade the DAC later?

I am currently driving a BEL 1001MKV amp with a Jolida Fusion Tube pre. Not sure I would use the M51 as a pre.

Would appreciate any thoughts. Thanks.
If you want to go for a digital playback I
will go for NadM51 usb or hdmi with a reclocker
straight to the amps. For analog I
will use a Pre.