Will I be able to tell a difference between the Yamaha RX-V673 if I up grade from the Onkyo TX-SR705? The Onkyo puts out 100W and the Yamaha only does 90W per speaker. I like all the extra HDMI ports,up scaling and Air play but I'm worried about the 10W lower per speaker. Any input would really help me hit the buy button! Thanks I'm ruuning MonoPrice speakers, 3 front 7604 6-1/2 Inches Dual Woofer- Micro Flange In-Wall Speakers and 4 7605 6-1/2 Inches Dual Woofer- Micro Flange In-Ceiling Speakers.