You can mix and match. I have M60 L & R and an M33C and it sounds great. The M33C is one amazing speaker, so perhaps a DSP33C would fit in well for Trifield.

The 5200's are fantastic IMHO and you would be well advised to listen to them .

Cheers, Chris smile

No 18 in the Hall of fame smile I have simple tastes; I am content to settle for the best:
GIK monster bass panels, rear wall. QNAP TVS 471i3. Roon into DSP5200SE via 210/ 218 zone... Explorer 2. Bluesound Pulse 2, Mini & Flex. 596v1, 518, Foxsat HD, Sony BDP, Pioneer 5090, 2 Chromecast's for LRB videos. MS200 to F80 for a Roon zone