Hi folks, I need some help here. I am setting up my rear surround speakers and Im not sure how high to put them, I have to hang them on the walls on each side of the couch. The fronts are at ear level on stands. The rear surrounds are JBL E10s. Im hoping to hang them a little higher then ear level, but I will do what I have to to get the best sound! Is there a set rule or do you experiment to get the best sound. Thanks in advance for any help. Dave H.