The Yamaha looks awesome. Does it just do 8ohms @ 145watts? That’s all the info i can find.... the onkyo does 8-4-3 ohms. 240 watts at 3 ohms. That’s a bit of power!
It has a power rating of 100w/ch both channels driven at 8 ohms with only 0.019% THD
Here is a partial section of its specs:
R-N803 Network Stereo Receiver
Receiver / Integrated Amplifier Network section DLNA Version 1.5
File Format MP3, WMA, MPEG4 AAC, WAV, FLAC, AIFF, ALAC, DSD
Wi-Fi Yes (with Wireless Direct)
AirPlay Yes
Bluetooth Yes (SBC / AAC)
Minimum RMS Output Power 100 W + 100 W (8 ohms, 20 Hz-20 kHz, 0.019% THD)
Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) 160 W + 160 W
Maximum Power(8 ohms, 1 kHz, 10% THD) 145 W + 145 W
High Dynamic Power/Channel (8/6/4/2 ohms) 140 / 170 / 220 / 290 W
Frequency Response 0 ± 0.5 dB / 0 ± 1.0 dB
Signal-to-Noise Ratio (CD) 100 dB (Pure Direct on, 200 mV)
Audio In / Out 10 / 2
Digital Input Yes (Optical / Coaxial)
Phono Input Yes
USB Input Yes
It can put out up to 290 watts per channel for an instantaneous peak at 2 ohms. It really has excellent specs and an adequate power supply.
One of the PROS for this receiver is that the components are not as crammed as in most AVRs. This should contribute to more reliability and a better longevity.
Here is the American link:
https://usa.yamaha.com/products/audio_visual/hifi_components/r-n803/index.html
The Canadian link:
https://ca.yamaha.com/en/products/audio_visual/hifi_components/r-n803/index.html