ok, for moderate volume mostly music (nothing crazy or unusual here which could be of issue)
Mid-room (I think either you're not very accurate with your measurements - if your room is really perfect square? If it is - you will have serious acoustics issues which would need to be addressed asap)
Why only these two brands?
Let me introduce to few very, very good alternatives - all with-in your price point.
https://rbhsound.com/r55ti.php
http://www.hsuresearch.com/products/ccb-8.html
http://www.ascendacoustics.com/pages/products/speakers/cmt340m/cmt340m.html
R55TI are especially impressive for their low price. (They used to be called EmpTek E55Ti),
but you'll be happy with either of these. Ascends have matching optional stands to make them look like tower speakers and you'll need to get your own speaker stands for HSUs