There is a pair of NS500s (not 500M) locally that I'm thinking about picking up. I've never heard the magic of the Be drivers and am super curious after all I've read. Anyone have any experience with them? My current speakers are a B&W Matrix 804 and DM620 which are also very natural sounding with good high frequency response. I'll be driving them with my A-1000 or B-2x. I'm really happy with my current gear but I feel like I at least need to hear a pair of proper NSs eventually or I'm missing out. Would I be better off waiting for the 500m or better the 1000s?