Hi guys, New Polkie here. I recently picked up a pair of R50s on blowout sale at Fry's. They sound pretty good in our small room but I'm looking to upgrade them. I've had my eye on a pair of Monitor 70's for a while but they are just too deep for where they need to go. So the R50s will have to suffice for now. I'm looking to replace the tweeters (center too) with the Vifa XT25TG30 as is used in the LSi Series. I also would like to match the woofers to my CS2. Has anyone done any upgrades to their R50s? Also, anybody know which woofer is used in the CS2?