Marantz Cinema 70s vs Onkyo TX-RZ30
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 50 W per channel).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Cinema 70s | TX-RZ30 | |
|---|---|---|
| Speakers it drives | 98 of 98 | 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.
| Cinema 70s | TX-RZ30 | |
|---|---|---|
| Amplifier channels | 7 | 9 |
| Processing channels | 7 | 9 |
| Height formats | Dolby Atmos, DTS:X | Dolby Atmos, DTS:X |
| Power | 50 W at 8 Ω | 100 W at 8 Ω |
| Room correction | Audyssey MultEQ XT | Dirac Live |
| Size | 17×4×15 in | 17×7×15 in |
| Lowest speaker impedance | 4 Ω | 4 Ω |
| Subwoofer outputs | 2 | 2 |
| Weight | 8.71 kg (19.2 lb) | 11.5 kg (25.4 lb) |
| MSRP | $1,300 each (MSRP, September 2026) | $1,000 each (MSRP, September 2025) |
| Impedance setting | — | 6 Ω, 4 Ω |
| Speaker layouts | — | 7.1.2 |
Every spec and pairing: Marantz Cinema 70s, Onkyo TX-RZ30.
Try either one in your own room.
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References
- Marantz Cinema 70s: Spec sheet, snapav.com, retrieved September 15, 2026
- Marantz Cinema 70s: Manufacturer product page, marantz.com, retrieved September 15, 2026
- Marantz Cinema 70s: Manufacturer product page, marantz.com, retrieved September 15, 2026 (2)
- 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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