I would avoid the Chord TT2, the Wyred 4 Sound and the Weiss as I think you will get as much or more glare from them.
Then it comes down to balancing detail vs imaging. Audiobyte, Rockna and Bricasti in $5k range should deliver an improvement vs the codex. Audiobyte is most detailed with least impressive soundstage while Bricasti is most detailed with least impressive detail. Rockna is warmest of the three.
My inclination is to say Wavelight but I think all three will be a step forward. Because of the ribbon on those Proacs delivering that big soundstage, you are going to need less help from the DAC. Audiobyte might be a good option. It would be between those two to me.
Then it comes down to balancing detail vs imaging. Audiobyte, Rockna and Bricasti in $5k range should deliver an improvement vs the codex. Audiobyte is most detailed with least impressive soundstage while Bricasti is most detailed with least impressive detail. Rockna is warmest of the three.
My inclination is to say Wavelight but I think all three will be a step forward. Because of the ribbon on those Proacs delivering that big soundstage, you are going to need less help from the DAC. Audiobyte might be a good option. It would be between those two to me.