Denon AVR-4520

Thorough connectivity ; 4K upscaling ; AirPlay ; DLNA ; Spotify ; Solid, cohesive sound

Rivals sound bigger ; Could do with more attack and excitement

Superbly balanced sound; 11-channel DTS Neo:X output; Ethernet switching; excellent features and setup wizard

No asynchronous USB input; control app lacks pizazz compared to some

Excellent sound quality, Comprehensive connections, Impressive video processing, Solid build quality, Flexible setup and configuration, Well designed and user friendly menus, Great remote app

None

It's fair to say that the basic design of the AV receiver hasn't changed much over the last 20 years but then if it ain't broke and all that. In fact, Denon's receivers have always had a very attractive look, with a solid chassis, thick front panel and...