Procedure for speaker settings (Audyssey® Setup) AVR-X4100W
Customer Reviews: Denon AVR-X4700H 9.2-channel home theatre receiver with Wi-Fi®, Bluetooth®, Apple AirPlay® 2, and Amazon Alexa compatibility at Crutchfield Canada
Denon AVR-E400 review: A somewhat simpler AV receiver at a cost - CNET