Head to head
Onkyo TX-RZ50 vs Marantz CINEMA 50 Series 2
A nine-channel Onkyo with Dirac Live included against a 3,000 dollar Marantz with an upgraded DAC stage and four sub outputs. The deciding factor is how much two-channel music matters.
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Both are nine-channel receivers with full pre-outs and six inputs that take 8K and 4K120, so either runs 5.1.4 on its own and 7.1.4 with an external amp. The Marantz lists at 3,000 dollars, nearly three times the Onkyo's typical price of about 1,050 dollars, and what the extra money buys is mostly on the music side: an upgraded DAC stage, HDAM preamp modules, four independent subwoofer outputs, and HEOS. The Onkyo has more rated power and includes Dirac Live. The one question that decides it: does this rack also serve as the household's serious music system?
Black Friday 2026
The sale price that makes each one worth buying
- Onkyo TX-RZ50Typically $1,049. Buy at $890 or under.
- Marantz CINEMA 50 Series 2Typically $3,000. Buy at $2,550 or under.
Black Friday is Friday, November 27. We check these prices twice a week through Cyber Monday.
| Spec | Marantz CINEMA 50 Series 2 7.1.4 theaters with multiple subs that also value two-channel music View at Marantz | |
|---|---|---|
| Best for | 5.1.4 or 7.1.2 rooms that want Dirac Live without a license fee | 7.1.4 theaters with multiple subs that also value two-channel music |
| Price tier | Mid-range | Flagship tier |
| Price (our catalog typical / Marantz list) | About $1,050 | $3,000 |
| Amplified channels | 9 | 9 |
| Processing channels | 11.2 | 11.4 |
| Rated power (8 ohm, 2 ch, 0.08% THD) | 120 W | 110 W |
| HDMI inputs | 7 (6 take 8K/60 and 4K/120; front is 4K/60) | 6 (all take 8K and 4K/120) |
| HDMI outputs | 2 (Main with eARC, Sub/Zone 2) | 2 or 3 (Marantz's page lists both) |
| Room correction | Dirac Live full bandwidth, included | Audyssey MultEQ XT32, Dirac Live optional |
| Pre-outs | 11.2 pre-outs | 11.4 pre-outs, 4 independent sub outs |
| DAC and preamp | Not published | Upgraded DAC stage, HDAM-SA2 modules |
| Formats | Dolby Atmos, DTS:X, IMAX Enhanced, THX certified | Dolby Atmos, DTS:X, Auro-3D, IMAX Enhanced |
| Streaming | Chromecast built-in, AirPlay 2, DTS Play-Fi | HEOS, AirPlay 2, Roon Ready, Qobuz Connect |
| Size and weight | 17.1 x 7.9 x 15.7 in, 30.9 lb | 17.4 x 6.5 x 15.9 in, 29.8 lb |
| Independent bench measurements | Audioholics and AVS Forum reviews | None yet for Series 2 |
What the extra 1,950 dollars buys
Not channels. Both receivers have nine amplified channels and pre-outs for the rest, and the gap in HDMI inputs is one. What the Marantz adds is an upgraded DAC stage and HDAM modules, four independent subwoofer outputs so each sub can be levelled and delayed separately, HEOS with Roon Ready and Qobuz Connect, and Auro-3D support.
Sound & Vision praised the original CINEMA 50 for a quieter, more refined presentation, which is the quality a stereo listener pays for. In a movie-first room that difference is hard to justify.
Room correction
The Onkyo includes full-bandwidth Dirac Live. The Marantz ships with Audyssey MultEQ XT32 and sells Dirac Live as a paid upgrade. If you would buy Dirac for the Marantz anyway, that narrows the gap in capability and widens it in price.
Power and platform age
Onkyo rates the TX-RZ50 at 120 W and Marantz rates the Series 2 at 110 W, both at 0.08 percent THD into 8 ohms with two channels driven. That is about 0.4 dB, which nobody will hear, and neither company's rating says anything about all nine channels at once.
The Onkyo is a five-year-old platform with documented quirks, including Ethernet dropouts on some units and output limiting into 4 ohm speakers at high volume. The Marantz is the August 2026 refresh, with years of firmware support ahead of it but no independent bench numbers yet.
The cheaper way to a Marantz-class layout
The Marantz shares its channel layout, pre-outs, and sub outputs with the Denon AVR-X3900H at a considerably lower price. If you want a current nine-channel platform and the Onkyo's age bothers you, see our Marantz CINEMA 50 Series 2 vs Denon AVR-X3900H comparison.
Pick the Onkyo TX-RZ50 if
- Dirac Live is a priority and you do not want to pay for a license on top of the receiver.
- The movies come first and the roughly 1,950 dollars is better spent on speakers or a second subwoofer.
- You want the higher power rating and THX certification at a mid-range price.
Pick the Marantz CINEMA 50 Series 2 if
- Music is at least half of what the system plays and you sit down to listen in stereo.
- You run three or four subwoofers and want each on its own output.
- You want HEOS, Roon Ready, or Auro-3D, and a platform that is new this year.
Verdict
Buy the Onkyo TX-RZ50 unless two-channel music is a major use; it gives you the same nine-channel layout, pre-outs, and a full set of 4K120 inputs, plus Dirac Live, for about a third of the price. Buy the Marantz CINEMA 50 Series 2 for a music-and-movies room with three or four subwoofers, where the DAC stage, HDAM preamp, and independent sub outputs are what you are paying for. The exception is a buyer who wants the Marantz platform and not the Marantz price: the Denon AVR-X3900H shares its channel layout and pre-outs for considerably less.
Common questions
- Is the Marantz worth almost three times the price of the Onkyo?
- For a movie-first room, no. Channel count, pre-outs, and HDMI inputs are equivalent, and the Onkyo includes Dirac Live. The Marantz pays off in a system that also plays serious stereo music or needs four independent subwoofer outputs.
- Which has more power?
- The Onkyo, on paper: 120 W against 110 W, both at 0.08 percent THD into 8 ohms with two channels driven. That is about 0.4 dB, which you will not hear.
- Does the Marantz include Dirac Live?
- No. It ships with Audyssey MultEQ XT32 and Dirac Live is a paid upgrade. The Onkyo includes full-bandwidth Dirac Live.
- Can both do 7.1.4?
- Yes, with an external two-channel amp on the pre-outs. Each has nine amplified channels and processing for more.
- How many HDMI outputs does the Marantz have?
- Marantz's own product page lists three outputs in one table and two in another. If a second display matters to you, confirm with Marantz before buying. The Onkyo has two: Main with eARC, and Sub/Zone 2.
- Is the Onkyo's older platform a problem?
- It is five years old and has documented quirks: Ethernet dropouts on some units and output limiting into 4 ohm speakers at high volume. If you have 4 ohm speakers or depend on a wired network, weigh that against the price.