You need to work on the Transport side.
So much cahhetr about the Dacs (which have been improving) but benign neglect of the Transport.
Try getting a CAPs server running windows 2012 server and Audiophile Optimiser in core Mode, a Sonore signature Rendu outputting SPDIF, a SoTM 100 Network Audio Adapter, and a stripped down Win8.1 PC, Aurender, Baetis, Antipodes, etc.
This will bring a clean signal to the Dac and you will likey.
So much cahhetr about the Dacs (which have been improving) but benign neglect of the Transport.
Try getting a CAPs server running windows 2012 server and Audiophile Optimiser in core Mode, a Sonore signature Rendu outputting SPDIF, a SoTM 100 Network Audio Adapter, and a stripped down Win8.1 PC, Aurender, Baetis, Antipodes, etc.
This will bring a clean signal to the Dac and you will likey.