Been thinking about getting a center channel speaker (probably a Polk, probably from Newegg).
2 decent units on sale right now.
25C monitor for $152 after 20% additional coupon (expires TODAY 12/7) EMCJHND24. "List" is $370.
CS2 Series 2 Center Channel Monitor for $119 (sales end 12/10). "List" $300. There was a one-day deal for this @ $109 in August, not sure how much lower could ever go.
Not sure how to figure out the differences even w/ the comparison tool. A lot of similarities in range, power handling, etc. The drivers may actually be the same even though described differently. The dimensions not stated for the CS2. The grill is different as is the driver layout.