(((1) Have you had your speakers set-up with the analyzer program/test tones?)))
((((2) If so what improvements did you hear?)))
When doing in-room compensation and your amps input impedance are truly verified and performed correctly, also in the Manual the answer is obvious in clarity.
((((5) Are you using the speaker spikes? On carpet, floors, etc.)))) When you find the best speakers position, from your chair then do tilt back, leveled properly, spikes installed as the manual suggests it’s not that hard and most any decent amps gonna work ..Find a decent pair of affordable to you Bi-Wire the same gauge on treble and bass I use AQ set up correctly will make question 7 go away. Best JohnnyR