thinking of buying used Dynaudio contour 5.4to replace totem Forest with 2 Rel 9x ‘s.

I am familiar with the Totem and DynAudio sound. I like both. The DynAudio are more high end sounding… precise, faster and accurate… not in a bad way. They can be more warm and natural when coupled with good natural tube (or warm ss) equipment or fast and precise imagers. The DynAudio are less forgiving but more sophisticated sounding.