I currently have Onkyo's HT500 HTiB 5.1 speakers hooked up to a Pioneer 811S receiver. The Pioneer is 100 W per channel for 8 ohm speakers and the Onkyo fronts, surrounds, and center are all 8 ohms rated at 100 W maximum power. Seems about right. I have two questions: 1) In the manual, I can't find a similar maximum power rating for the subwoofer. It says "75 W Power Consumption" and "150 W Dynamic Power Output." How do I know how much power it can handle, specifically if it can get up to 115 db? (see next question) 2) I'm wondering, can this system handle Dolby Ref Level?Since that is the benchmark calibration point, it seems pretty much any system would be able to handle those volumes but I'm not sure. I haven't yet got an SPL meter or a test disc so I can't actually test it yet, but I figured I'd ask if I'm going to blow my speakers with the sound turned up that high. As always, thanks in advance for any help you can provide.