Finsup:
The spec sheet that came with my Ohms says the sensitivity is 88 dB/W/m with a recommended peak amplification of 200 Watts. This means that, absent room/placement effects, I can get 102 dB's/speaker at 9 feet. Reference level requires 105dB's/speaker, which would mean 400 watts, and most people would recommend having another 3dB's of head room, which would mean 800 watts!
http://www.doctorproaudio.com/doctor/calculadores_en.htm
In any case, the Emotiva is 200 watts into 8 ohms and the Outlaw is 125 watts into 8 ohms.
Many people in HT are moving to speakers with higher sensitivities. For example a sensitivity of 94 means you can divide the wattages above by 4!