Denon AVR-X1800H vs Onkyo TX-RZ30
The Denon AVR-X1800H costs less ($849 vs $1,000). The Onkyo TX-RZ30 powers more speakers (9 vs 7), processes more channels (9 vs 7) and is rated for more power (100 W vs 80 W per channel).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| AVR-X1800H | TX-RZ30 | |
|---|---|---|
| Speakers it drives | 98 of 98, 17 after a setting change | 98 of 98, 17 after a setting change |
| Subwoofers that connect | 17 of 17 | 17 of 17 |
| Largest layouts on its own amps | 5.1.2, 7.1 | 7.1.2 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| AVR-X1800H | TX-RZ30 | |
|---|---|---|
| Amplifier channels | 7 | 9 |
| Processing channels | 7 | 9 |
| Height formats | Dolby Atmos, DTS:X | Dolby Atmos, DTS:X |
| Power | 80 W at 8 Ω | 100 W at 8 Ω |
| Room correction | Audyssey MultEQ XT | Dirac Live |
| Size | 17×6×13 in | 17×7×15 in |
| Lowest speaker impedance | 4 Ω | 4 Ω |
| Impedance setting | 8 Ω, 6 Ω, 4 Ω | 6 Ω, 4 Ω |
| Subwoofer outputs | 2 | 2 |
| Speaker layouts | 7.1, 5.1.2 | 7.1.2 |
| Weight | 8.6 kg (19 lb) | 11.5 kg (25.4 lb) |
| MSRP | $849 each (MSRP, September 2026) | $1,000 each (MSRP, September 2025) |
Every spec and pairing: Denon AVR-X1800H, Onkyo TX-RZ30.
Try either one in your own room.
Draw your room in 3D, place it with the rest of your system, and see every connection checked. Designing is free.
References
- Denon AVR-X1800H: Spec sheet, denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Manufacturer product page, denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Manufacturer product page, denon.com, retrieved September 15, 2026 (2)
- Denon AVR-X1800H: Owner's manual, manuals.denon.com, retrieved September 15, 2026
- Denon AVR-X1800H: Dimensional drawing, manuals.denon.com, retrieved September 15, 2026
- Onkyo TX-RZ30: Owner's manual, assets.onkyo-av.com, retrieved September 15, 2026
- Onkyo TX-RZ30: Retailer listing, web.archive.org, retrieved September 15, 2026
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