newbie - I have a 200 watt 2 ch receiver that has a 8 ohm impedance. I wanted to use with 2 sets of speakers (2 different rooms). Concern is that one pair (A set KLH 970A) is listed as 4-6ohms/5-50 watts recommended power) . The 2nd set of speakers is ('B' set Architech AP-602). is listed at 8 ohms/50watt-140max. Concern is with the 4-6 ohm pair not matching up to the 8ohm receiver. Am I taking a chance of ruining the 'new' 200w 2 ch receiver by trying to use the 4-6ohm KLH speakers? On line searches have me suspecting I would be ahead of the game by replacing the KLH with a set of 8ohm speakers but would appreciate any advice - thanks in advance!!