Onkyo TX-RZ620 vs Denon AVR-S750H AV Receiver

Both are 7.2-channel receivers with Dolby Atmos and DTS:X, but they trade strengths. The Onkyo TX-RZ620 is the step-up model: a discrete amp rated higher per channel, 7 HDMI inputs, 2 HDMI outputs and Zone 2 and Zone 3 pre-outs, so it suits larger rooms and multi-zone setups. The Denon AVR-S750H is the easier, more connected unit, with Audyssey room calibration, HEOS streaming, AirPlay, voice assistant control and eARC, and owners and reviewers consistently call its setup assistant and app support simple. For raw amplification and input count, pick the Onkyo; for streaming, room correction and ease of use, pick the Denon.

• Choose the Onkyo TX-RZ620 if you have a big room, several HDMI sources and want a second or third audio zone, or plan to bi-amp your front speakers.
• Choose the Denon AVR-S750H if you want built-in HEOS and AirPlay streaming, Audyssey calibration and the simplest setup in a single-room 5.1.2 or 7.1 system.