Rev 8's hissing help??

[MLA]

I really appreciate all the feedback. It's still hissing. ?

What have you tried, readjusted and/or eliminated up to this point?

[jwelsh]

I am very curious if you get the hiss fixed as I am dealing with the same problem along with the RGB squeal everyone else has described as well.
My system is built on SD6 to a pair of Rev10's & a pair of rev 8 along with the newer style 420 eq