Onkyo is welcoming three new 7-channel AV receivers to their RZ family. The TX-RZ620, RZ720 and the RZ820 are all expected to be available this June. On paper, all of these receivers look like very capable machines which are more than ready to tackle home theater duties.

Onkyo TX-RZ620 Preview

Onkyo TX-RZ620

All of the receivers come stocked with 6 HDMI inputs including one on the front panel. The amps support the three flavors of HDR (High Dynamic Range) video; Dolby Vision, HDR10, and HLG (Hybrid Log-Gamma). BT.2020 color space, 4K/60p/4:4:4/24-bit video pass-through, and HDCP 2.2 are also on the list of capabilities for these receivers. The RZ-620 has an HDMI sub-out in case you want to hook-up a secondary TV or projector. The Onkyo RZ-720 and RZ-820 both have zone 2 HDMI outputs.

RELATED: Onkyo TX-RZ820 Preview


All three receivers are stout in the sound processing department. All use a 384 kHz/32-bit AK4458 digital to analog converter (DAC) and can handle hi-res audio up to 192 kHz/24-bit resolution as well as DSD 11.2 MHz and 5.6 MHz. If you have a turntable, a phono input is included as well.

Onkyo TX-RZ720 Preview

Onkyo TX-RZ720

Anyone investing in a Dolby Atmos or DTS:X speaker setup will be glad to hear that each of these new receivers support both object-based formats. WiFi, Bluetooth, and AirPlay are present and accounted for as is Onkyo’s favorite multi-room audio format FireConnect. Chromecast built-in and DTS Play-Fi are also listed on the spec sheet, however, these two features won’t be equipped right out of the box. Both are expected to be available with a future firmware update. Streaming services are available in abundance on all three receivers; Pandora, Tidal, Spotify, TuneIn internet radio, and Deezer are all easily accessible via the Onkyo controller app.

Onkyo TX-RZ820 Preview

Onkyo TX-RZ820

On the home automation side, each receiver has a 12 V trigger output, IP control and setup over LAN, RS-232 terminal, and IR input. Onkyo also offers an optional rack mount kit to help facilitate installation in an existing rack.


The Onkyo TX-RZ620 is the most affordable of the bunch. It can produce about 100 watts of power per channel while the slightly more expensive TX-RZ720 is rated at about 110 watts per channel. Both the 620 and 720 have a powered zone 2 along with a pre-/line output which has its own DAC to handle network, S/PDIF, and analog sources.


The Onkyo TX-RZ820 is the most powerful of the trio with it producing approximately 130 watts per channel. It has a powered zone 2 and 3, plus 2 pre-/line outputs. For outboard amplifier connections, the 820 also has 7.2 channel pre-outs. To help remove subtle digital noise, the TX-RZ820 uses VLSC filtering on all channels. The 620 and the 720 only use it on the front L/R channels.


Based on what we’ve seen, all three receivers appear to be very capable machines. Stay tuned as we hope to get review samples in the near future.

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