I brought this receiver home Friday and I must say I'm a bit disappointed. I can run it full throttle and IT IS NOT THAT LOUD!!!! Since I haven't broken in my new Athena's I've only cranked it with my old speakers (don't even know what they are). The sound quality is great, but why isn't it loud? My old Pioneer would overload and shut down at -20. I can get right up to 0 with the HK. -30 seems "quiet". I went back to the store today and had a listen to the 630......the volume went beyond 0 into +dB levels. I must have something wrong, but I don't know where to begin. My fronts are Athena AS F2....but I haven't went above -20 with these......not loud at all. Sony centre and surround (not even sure which they are......came as a set) Bose bookshelf back surround. 12" sub. I came home with the Athena AS C1 today because it was on sale.......have yet to hook it up. I know it will take some tweaking, but I was expecting more right out of the box for 2 ch stereo. Defective unit maybe or just defective operator? LOL Would love to hear from other 630 owners. And just out of curiosity........why does the volume scale start at -85 and go down as you go up in volume??