For video devices it offers six state-of-the-art HDMI inputs, for audio sources 4 pairs of line and one phono MM input as well as 2x S/PDIF optical and 1x coax. The receiver is capable of both FM and DAB+. Via LAN or WLAN, the device can access the music streaming services Amazon Music, Tidal, Spotify and Deezer via the Onkyo Music Control App. The app also controls multi-room audio. Chromecast, Bluetooth and Airplay 2 are also on board. PCM resolutions up to 192 kHz are supported over the home network. The device converts DSD files (up to 11.2 MHz) to PCM. The TX-8390 can even decode MQA files from Tidal or from a PC or USB stick, and it has also inherited the room calibration from the multi-channel receivers. The output power is inddicated by Onkyo with 2x 200 W at 6 Ohm. Onkyo's latest multi-channel flagship, the TX-RZ3400, is THX ultra-certified, equipped with all the bells and whistles of modern AV technology as well as 11 power amplifiers and it costs 2800 euros.