A:Answer Yes it can handle up to 110 watts at 8 ohms and up to 180 watts and 6ohms, I have this and I love it, it's very powerful and Dolby Atmos is truly amazing. here is some info I found about it:
Dynamic Audio Amplification
Backed by 70 years of experience building high-grade audio components, the TX-NR757 amplifies accurate, noise-free signal processing with high-current power for dynamic speaker control. The result is pure, rich and authentic sound.
Onkyo's dynamic audio amplification delivers massive power at 180 W/Ch (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven)/ 110 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2 Channels Driven).