Really quick question and I'm sure it's be asked and answered a million times but I'm obviously not searching properly. Can I use a different brand speaker for rears? Have MK950's LCR M4t's as side rears Built my stuff up when I was a little better off, now have 2 kids and childcare to pay for Now having our room redone and want to wire for atmos (for sometime in the near future) and thought I'd add some more rears for 7.1 I can't afford another set of m4ts currently and won't be upgrading anything until the kids are in school and fees drop! So looking for a Bargin in the classifieds to tide me over. So can I just go for anything as rears or should I be looking to match?