Originally Posted by aht3
Thanks for the replies. My receiver goes from 80 to 50 so I am going to leave it at 80. Thanks again.
It's your call, but there is no reason not to try 50.
I suspect 60 was recommended because it's more commonly available than 50. While 2X the mains' cutoff is often suggested, 1.5X is also frequently mentioned. In your case, that would be 42Hz. Others like to add 20Hz, would would be 48Hz for you.
I'd suggest you give 50 a try and let your own ears decide. With the gear you have, there is no chance you'd damage your main speakers, at least not at any rational listening level.