Onkyo TX-RZ50
Score: 81/100
Denon AVR-X1800H
Score: 76/100Rankings
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-X1800H is a 7.2-channel receiver delivering 80 W per channel, HDMI 2.1 8K/60 Hz video and comprehensive HEOS streaming. Its power ceiling and limited Zone 2 amplification are trade-offs for the budget-friendly feature set. Suited for small-to-medium rooms, gamers and users who prioritize streaming integration.
| Attribute | | |
|---|---|---|
7best | 6 | |
2best | 1 | |
120 Wbest | 80 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 | FLAC; ALAC; WAV; DSD |
Channel Configuration | 9.2 | 7.2 |
Power(1) | ||
Power Output (per channel, 8 Ω) (W) | 120 W | 80 W |
Connectivity(2) | ||
HDMI Version | HDMI 2.1 | 2.1 |
Bluetooth Version | Bluetooth | unspecified |
Features(1) | ||
Video Support (e.g., 4K/8K) | 8K/60, 4K/120 | 8K/60Hz; 4K/120Hz; HDR10; HDR10+; Dolby Vision; HLG |
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 | 10.45 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 commend the AVR-X1800H for its future-ready HDMI 2.1 implementation, robust Audyssey calibration, and the convenience of the HEOS ecosystem, while noting that its 80 W per channel rating can be limiting in full-7-channel operation and that HDMI input flexibility is modest compared with some rivals.
Everyday owners praise the easy wireless streaming, versatile inputs including a phono stage, and the ability to add height virtualization without extra speakers, but they commonly cite the need for an external amp for Zone 2 wired speakers and express concerns about limited power for larger rooms.
