Hi guys Just hooked one of these units up as a replacement for a Yamaha 630 RDS. I wasnt expecting fireworks but i did hope for a decent improvement in performance given that the 630 output is 75w as opposed to the 100w output per channel from the 750. I now find i have to turn the volume up to around -25db for normal listening which is actually higher than the setting i had on the 630(around -30db). I use them with AE Evo s front and centres but no sub. Missions are used for the surrounds. Has anyone any experience of this amp. I set it up using the supplied microphone and auto set up facility.It doesnt matter which source i am using. Help!!!!