Onkyo TX-NR545 vs Onkyo TX-NR626 comparison definitely makes sense.
Considered AV receivers have the same number of channels 7.2. Regarding power, then TX-NR545 has such a W/Ohm ratio - 100/6 1KHz when TX-NR626 has a power of 160/6 1KHz. The THD is the same and is 0.08%.
Characteristics of digital to analog converter (DAC) are different, Hi-Grade 384 KHz/32-bit for TX-NR545 and Burr-Brown 192 KHz/24-bit for the TX-NR626. Both the TX-NR545 and the TX-NR626 support Bi-amping. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Apple Music service is implemented on considered devices: AirPlay. Spotify can be used on each receiver. The TX-NR545 can work with the audio stream from Tunein Radio, and the TX-NR626 can receive a content from TuneIn Radio, Last.fm, AUPEO, Simfy.
Only the Onkyo TX-NR545 has support for High dynamic range (HDR). Compared AV receivers retain the quality of 4K 60p signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The TX-NR626 can scale the input HDMI signal, unlike the TX-NR545. The HDR standard - Dolby Vision is not supported by these receivers.
The Onkyo TX-NR545 has 6/1 HDMI inputs/outputs versus 6/2 HDMI connectors of the Onkyo TX-NR626. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. The TX-NR626 has a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. A voice control is not available. An ECO mode is not present in each of the AV receivers. The setup assistant will help you configure Onkyo TX-NR545.
Only the TX-NR545 has a Dolby Atmos multichannel audio format support. The receivers do not support the surround sound technology DTS:X.
The Onkyo TX-NR545 is better receiver in this comparison. Check Onkyo TX-NR545 price