Also,also,When I was cal. the speaker volumes,I couldnt get my center down to match my other speakers. I have gain controls on all my parasound amps can I adjust this control on my center amp(which has been bridged)? Never did quite understand how you use a gain control the parasound manual says I should leave it all the way up to have THX standards If so what is the procedure. Do I leave it at the default setting in the menu of the 950 and go straight to adjusting the gain on my center amp?