@axeis1, I’ve owned a Chord TT2 and M Scaler combo for about four years now and I almost never think about upgrading my DAC unless I’m reading a post like yours. The sound of the Chord Dave is sublime and IMO it would be the logical choice if you enjoy the Chord sound signature as much as I do.
I use one of Nick Bacon’s WAVE High Fidelity Storm BNC cables to connect my streamer to my M Scaler using an AudioWise SRC.DX USB to dual BNC converter, and two of his Storm BNC’s between the M Scaler and the TT2. Those two tweaks really improved the sound of my system.
Maybe one day I’ll find a good used Dave if the money falls from the sky. But until then I’ll never part with the TT2 because it’s such a nice reference DAC with a small footprint. Good luck