A:Answer This is a great question. Allow me to provide some recommendations. The speakers I will be recommending are POLK brand speakers. Keep in mind speaker choices are also based on receiver setup. So based on your setup this should help you decide on which speakers to choose.
Good – on wall option: FL/FR/C: 3x OWM5, LS/RS: 2x OWM3
Better – bookshelf sized: FL/FR/LS/RS: 4x RTi A3, Center: 1x CSi A4.
Best – Towers: FL/FR: 2x RTi A5, Center: 1x CSi A6 CC, LS/RS: 2x RTi A1.
*Note that every system listed would also benefit from the addition of a separate powered subwoofer as well.
I hope this helps. If you get the opportunity to test them out at your local authorized dealer, do so. You will not be disappointed.