I own the following:
Front - Axiom AX 2
Centre - Axiom AX 1.2
Rears - Axiom AX 1.2
Sub - D-Box David 250

I just purchased a Denon 3802 and am looking for surrounds to complete the 6.1 set up. I am pleased with the AX 2's but not so much with the AX 1.2 rears. They seem to crakle when certain frequencies are sent to them. This problem has existed since purchased (but that is another story). I thought I might keep my rears as rear speakers and buy new surrounds. Any suggestions?

Also I am wondering what I could do with these problem rears (Ax 1.2's)?