Can you hear it from your sitting position, or only close to the speaker? Does the level vary with the volume setting? How far up do you usually leave your volume? Did you change any settings in the receiver to attempt to adjust for your new speakers?

If it is just a quiet hiss that can only be heard when you are close to the speaker, chances are it is just the noise-floor of the receiver (it doesn't get any quieter that that). You may have just never noticed it before because you weren't listening for anything new.

If it is loud, and really did just start, recheck all your connections. Maybe you bumped something when connecting up the new speakers.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris