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

I have Dynaudio Contour S3.4 modded with the Esotar2 tweeters found in the S5.4. They are fantastic speakers but like an amp that can produce lots of current on demand.

I would also keep the subs to go with them. I used a pair of REL R-328 subs with my Contours. Then I replaced the Contours with the C2 Platinum I have now. I’ve been using REL S/510 subs with those and just bought two more pair to configure a REL six-pack line array.

I used to own a pair of the Dynaudio 5.4 and thought they definitely needed a sub and were way too revealing for my tastes. As long it is was great recording and most anything but rock, they sounded good but otherwise? 

I also own a pair of Totem Rainmakers and love the way they sound on most everything but they cost a fraction of the Dyn's so not really a comparison but think I'd love to audition more Totem's if I had the chance. 

I owned S5.4 and didn’t like them. Clinical sounding, need a big amp and they come alive at high volumes. I would get Totem Wind instead. Much more musical and articulate. In addition I also had to replace both tweeters at different times. They were expensive and customer service wasn’t the best experience ever.
I would look elsewhere