Quote Originally Posted by JSE
Based on your comment about weak bass above, I would defintely go the stand/sub route first. Like noddinoff mentioned, bass is about moving air. Small speakers simply don't move a lot of air, thus limited bass.

However, you have some great speakers. There is absolutely nothing wrong with pairing a decent sub with them. Many audio nuts prefer a monitor/bookshelve style speakers like yours combined with a sub. Some prefer a larger full range larger speaker that produces more bass on it's own. Even then, most still add a sub to a full range speaker.

In the mean time, keep playing with positioning and maybe even some room treatments like you mentioned with fabric on the window. Generally speaking fabric soft and materials will absorb sound and reduce reflections. Wood or any hard surface creates reflections and "bounces" sound. Since I am starting to speak outside my limited expertise, I am not really sure which would help best with your lack of bass and your layout . I suspect the wood shutters would better in your situation but again, maybe someone else will disagree. A little "boomy" bass created by some hard surfaced might actually help a little here in this particular situation. At least until you get a sub.
Good advice, though I'm not sure the highlighted line is correct.... For Home Theater - possibly.... but for music? probably not...