BTW, the frequency response graphs for the LSi9 v. M22Ti permit 2 further conclusions: (1) the off axis response of the M22s is much better than the Polk LSi9s; (2) the LSi9s suffer from a rather dramatic high frequency drop off at about 10 KHz unless you're directly in line with the radiator tweeter.
That having been said, I feel the need to say it again, I really like Polk speakers, I think they are the class of the litter among mass produced speakers offered at mass retail outlet chain stores.
My Rt25is were wonderful book shelf speakers, easy to drive, efficient, sweet sounding and cheap - not quite in the same class as the M3Tis but still a very good value.
