The Yamaha RX-V581 vs Cambridge Audio AXR100 comparison proves that these receivers have many common features.
A significant difference between the receivers in the number of channels, Yamaha RX-V581 has 7.2 versus 2.0 for Cambridge Audio AXR100. Regarding power, then RX-V581 has such a W/Ohm ratio - 115/6 when AXR100 has a power of 100/8. The THD is 0.09% for the RX-V581 but 0.01% for the AXR100.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 192 KHz/24-bit for RX-V581 and 192 KHz/32-bit for the AXR100. Only the RX-V581 supports Bi-amping feature. The Yamaha RX-V581 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
Only the Yamaha RX-V581 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the RX-V581 supports Spotify.
Only the Yamaha RX-V581 has support for High dynamic range (HDR). Only the RX-V581 provides HDMI signal transmission in standby mode. Both competitors are not able to scale the HDMI signal. The HDR standard - Dolby Vision is not supported by these receivers. Only the RX-V581 supports HDMI Audio Return Channel (ARC). Unfortunately, HDMI eARC is not available on monitored devices. Of the two receivers in our comparison, HDMI CEC is present in only the RX-V581. The AXR100 has a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is only available for the RX-V581. The setup assistant will help you configure Yamaha RX-V581.
Only the RX-V581 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the RX-V581.