Onkyo TX-RZ50
Score: 81/100
Denon AVR-S670H
Score: 73/100Rankings
The Onkyo TX-RZ50 is a 9.2-channel receiver offering 120 W per channel, Dirac Live calibration, and THX Certified Select for high-performance audio. Its high idle power consumption and fan noise can be drawbacks for energy-sensitive or quiet-environment users. It excels in medium-size home theaters and gaming setups requiring powerful, calibrated sound.
The Denon AVR-S670H is a compact 5.2-channel receiver delivering 8K video, HEOS streaming and Audyssey calibration. Its modest 75 W power and limited channel expansion are trade-offs for the affordable price. Best suited for small-to-medium rooms where future-ready video is a priority.
| Attribute | | |
|---|---|---|
7best | 6 | |
2best | 1 | |
120 Wbest | 75 W | |
| ↓ lower better | 850 Wbest | — |
| ↓ lower better | 0.1 Wbest | — |
3 yearsbest | 2 years | |
| ↓ lower better | 435.1 mm | 434.34 mmbest |
| ↓ lower better | 201.68 mm | 152.4 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Ports(2) | ||
HDMI Inputs | 7 | 6 |
HDMI Outputs | 2 | 1 |
Audio(2) | ||
Supported Audio Formats | PCM, DSD, Dolby Digital, DTS, DTS‑ES, DTS 96/24 | Dolby TrueHD; DTS HD Master Audio; Dolby Digital; DTS; DTS 96/24; PCM |
Channel Configuration | 9.2 | 5.2 |
Power(1) | ||
Power Output (per channel, 8 Ω) (W) | 120 W | 75 W |
Connectivity(1) | ||
HDMI Version | HDMI 2.1 | 2.1 |
Features(1) | ||
Video Support (e.g., 4K/8K) | 8K/60, 4K/120 | HDR10+; HLG; HDR; Dolby Vision; Dynamic HDR; VRR; ALLM; QFT |
General(1) | ||
Warranty (years) | 3 years | 2 years |
Build & Design(4) | ||
Width (mm) | 435.1 mm | 434.34 mm |
Height (mm) | 201.68 mm | 152.4 mm |
Depth (mm) | 398.27 mm | 337.82 mm |
Weight (kg) | 14.01 kg | 9.38 kg |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the TX-RZ50 for its distortion-free output, expansive frequency response, and low-jitter processing, highlighting the value of built-in Dirac Live and THX certification. They also note minor drawbacks such as measurable multitone jitter, a relatively high idle power draw, and some fan-related noise under heavy use.
Everyday users appreciate the receiver's punchy, detailed sound, the ease of setting up Atmos and gaming, and the reliable multi-room streaming. Recurring complaints focus on occasional HDMI handshake glitches, app control hiccups, and audible fan noise during prolonged high-power sessions.
Professional reviewers from Crutchfield, Parts Express and B&H view the AVR-S670H as a solid entry-level option that delivers future-ready 8K video and robust 3D audio decoding, while Audyssey MultEQ and the HEOS ecosystem add real value for small-room installations.
Consumers generally praise the receiver's easy setup, HEOS multi-room streaming and the convenience of the mobile app, while recurring concerns focus on the 75 W power rating and the lack of extra channels for larger Atmos setups.
