1. Determan your setup needs (5, 6, 7, 8, or 9.1 channel setup)
Shoot for a 6.1 minimum
2. Determan your budget
3. Speaker types will vary, but spec to look at:
*Video-shielding (namely of center and front mains; sub if its close to the display)
*Frequency response ex. 40-24,000 Hz (wider range is better) low 1st# vs higher 2nd - this will vary based on the spkr: rear vs main.
*Sensitivity/efficiency 88 dB or higher is better
*Watts (continuous NOT peak or max) 90w and up across all chnls
* Speaker material (shy away from paper)
* Speaker design (Bass-reflex/ported vs Acoustic suspension)
Bass: Improve the low frequency response or overall efficiency, but poorer tonal quality especially in low cost units. Needs less power.
Acoustic: Low distortion/truer sound. The drawback of these speakers is their low efficiency. Needs more power. (I prefer these)
4. Do your best to match your home decor
5. Makes & models DO NOT have to be the same; just listen to create a great system per each piece.
Budget unfortunately forces many to kill a great home theater by sacrificing it to cheap speakers. A system is only as good as that final piece. You can turn a $10k awesome HT into junk with $500 worth of speakers. If you don't have much of a budget contraint; PM me and I can send you a great idea to examine and get some ideas. AND you won't go broke with these ideas, I promise.