Test report about Stereo amplifiers from Chip HD Welt

Onkyo TX-NR515, 7.2-channel AV network receiver, black

Yamaha RX-V673, 7.2 Network Rec, Airplay, 150W, 4k, Black

Pioneer VSX-922-K, AirPlay, DLNA

Denon AVR-2113, 7.1 channel A/V receiver, AirPlay, DLNA, 4k

Sony STR-DH730, 3D-capable 7.1-channel surround receiver