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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.
kalbi23
atmasphere's avatar
atmasphere
11,667 posts
 
If you run an 8 ohm speaker on the 4 ohm tap there will be no reliability consequences, although it may not sound right (which is a different matter).
schubert
7,386 posts
 
Yes , and you should if a speakers dips to 4.1
harley52
79 posts
 
I went over to the Mac site and the amp is rated for 4&8 ohms. If you'd like detailed info or any info really, e=mail Chuck Hinton of Mac. He can answer most any question you have.
kalbi23 OP
58 posts
 
Thanks guys, I called a SF rep and he said I should run them at 8 ohm since they are 8 ohm speakers. I'll contact Chuck at Mac and see what he saids.
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