I believe the speakers are the first consideration between the two. Speakers have to be chosen to work in a given room, which can vary quite a bit. Speakers are probably the least accurate component in a system, therfore one should find speakers that are the least objectionable to one's unique sensibilities (or lack there of). Of course that doesn't mean you should choose inapropriate amplifcation. Of course, I'm a hypocrite as my amplifier costs more than my speakers. In my defense, I chose my speakers first, and then decided on amplification, and I doubt I would have chosen this particular amplifier to power the other speaker options I considered.
