I'm sorry, but I really have to disagree with the theories listed above. I think you are absolutely right, you start with the speakers and work back. Also, with all the changes going on in the digital world, one would be well advised not to commit large sums of money. It sounds like you may be listening to a lot of vinyl, so that might not apply. Legacy Focus, a fine choice I might add, but watch out for overwhelming bass, especially if your listening room is not large. You will probably find your room acooustical treatments first focusing on corner (bass) traps to keep it from getting muddy. My suggestion would be to pick proper amps next, and keep in mind that these are very efficient speakers that don't need all that much power to achieve excellent results. In short, I would go for quality watts, not quantity. These can be well run with even modestly powered tube amps. With a good preamp then added to your system, you could easily integrate almost any decent source components with great results. FYI: I am driving Legacy SigIII's with Counterpoint NP400's that have been heavily modified by original designer, Michael Elliot, and am extremely pleased with the results.