IMHO the area that needed an upgrade was the front end and amplification. CDM series is a very nice speaker. I own Nautilus 804 / HTM 2 myself. Nautilus is better looking and sounding than CDM, but I would have spent the money on the front end, pre/pro and amplification still.
Anyways, for 3k used I would buy Pass Labs X series, possibly X3 and X150. Move up to X.5 series if the budget allows.
Anyways, for 3k used I would buy Pass Labs X series, possibly X3 and X150. Move up to X.5 series if the budget allows.