I know this is a speaker question, but there seem to be more tube amp guys on this board than on the speaker board. I'm looking to get speakers for my tube monoblocks (on a budget), but I read that I should look for efficiency in the 90s. My Marantz Model 2 amps are rated at 40 watts each. Am I asking for trouble if I get, for example, B&W 303 speakers rated at 88db sensitivity? I want to make sure I get speakers that sound good, and make my amps sound good. As modern speakers are designed with powerful Solid-State amps in mind, I want to make sure I choose wisely.