I understand your point but am interested in your position on feeding the twweter/midrange with one amp and the woofer section with a second amp. I presume this is what is called "bi-amping." However, what do I need to look out for with respect to total wattage to the speakers? If it's rated at max 200 (B&W 640's) does that mean I should not exceed 100 watts per channel for the mid/tweeter and likewise for the bass or 200wpc for each? Yes, I'm a rookie! Thanks