Yes , and you should if a speakers dips to 4.1
What ohm to set amp
I have the Sonus Faber towers with matching center. Running a Marantz AV7005 with a Mcintosh Mc205 for power. I've read in a couple of reviews, where the towers were running at 4.1 to 4.7 ohms and the center was running at 6.2 ohms. They are 8 ohm speakers, can I run it at 4 ohms? My friend said I can run them at 4, but couldn't tell me if there would be issues down the road.