← Compare toolAV Receivers · Head to head
Marantz CINEMA 30 vs Denon X6800H
The 11-channel flagships — which should you buy?
The short answer
Identical on every performance field we record — 140W at the same strict context, 11 amplified/13 processing channels, four subs, XT32 on both. Buy the Denon AVR-X6800H if the live prices favor it, the Marantz CINEMA 30 for its stated trigger/Roon extras and the design — the data itself can't split them, and we say so.
As tracked by Home Theater Builder: the Marantz CINEMA 30 tracks at $3,255; the Denon AVR-X6800H at $3,799. How we verify this data → The top of both sibling ranges: eleven amplified channels each, and once again the amplifier ratings are identical to the watt under the identical context.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED| Spec | Marantz CINEMA 30 | Denon AVR-X6800H |
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| Price | $3,255 | $3,799 |
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| Brand | Marantz | Denon |
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| Main Channels | 11 | 11 |
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| Processing Channels | 13 | 13 |
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| Sub Pre Outs | 4 | 4 |
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| Zone 2 Capable | Yes | Yes |
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| Zone 3 Capable | Yes | Yes |
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| Watts Per Channel 8ohm | 140 | 140 |
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| THD Percent | 0.05 | 0.05 |
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| Power Measurement Channels Driven | two channels driven | two channels driven |
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| Impedance Range | 4 – 16 Ω/ohms | 4 – 16 Ω/ohms |
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| Impedance Min Ohms | 4 | 4 |
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| Impedance Max Ohms | 16 | 16 |
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| Dolby Atmos | Yes | Yes |
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| Dts X | Yes | Yes |
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| Auro 3d | Yes | Yes |
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| Imax Enhanced | Yes | Yes |
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| Room Correction System | Audyssey MultEQ XT32 | Audyssey MultEQ XT32 |
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| Measurement Mic Included | Yes | Yes |
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| HDMI Inputs | 7 | 7 |
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| HDMI Outputs | 3 | 3 |
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| HDMI Version | 2.1 | not stated |
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| HDMI Max Bandwidth Gbps | 40 | 40 |
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| HDMI Earc Port Count | 1 | 1 |
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| Max Passthrough Resolution | 8K 60 | not stated |
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| HDR Support | HDR10, HLG, Dolby Vision, HDR10+ | HLG, HDR, Dolby Vision, HDR10+, Dynamic HDR |
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| VRR Passthrough | Yes | Yes |
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| ALLM Support | Yes | Yes |
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| Phono Input | Yes | Yes |
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| Wifi | Yes | not stated |
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| Bluetooth | Yes | not stated |
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| Airplay2 | Yes | not stated |
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| Heos | Yes | Yes |
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| Ip Control | Yes | not stated |
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| Streaming Services | Spotify Connect, TuneIn, Pandora, Amazon Music HD, Deezer | not stated |
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| Trigger Outputs Count | 3 | not stated |
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| Form Factor | full size | full size |
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| Width Inches | 17.4 | 17.1 |
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| Height Inches | 7.5 | 6.6 |
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| Depth Inches | 17.6 | 14.9 |
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| Weight Lbs | 42.8 | 34.4 |
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| Power Consumption W | 780 | 750 |
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| Channel Config | not stated | 11.4 |
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Shaded rows differ · green dot = lab-measured · amber = manufacturer-verified · blue = retailer/community-reported · grey = estimated · “not stated” means exactly that
Reading the numbers honestly
Both state 140W at 8Ω, two channels driven, 0.05% THD — 0.0 dB apart. Both drive eleven channels, process thirteen, feed four independent subwoofer outputs through Audyssey MultEQ XT32, state 4–16Ω ratings, run seven HDMI inputs and three outputs, and add a third zone. The stated differences we record: the Marantz states three trigger outputs and Roon Tested certification, and its stated chassis is nearly an inch taller and some 8 lbs heavier — build mass the sheet admits, whatever one makes of it.
Compatibility · computed, not written
Checked against a bookshelf that dips to a stated 3.5Ω like the KEF LS50 Meta: KEF LS50 Meta
Can the Marantz CINEMA 30 drive the KEF LS50 Meta?
Marantz CINEMA 30 states a 4Ω-minimum rating; the KEF LS50 Meta dips to a stated 3.5Ω minimum, a little below that floor. Most receivers handle a marginal dip at normal volumes — it's worth watching only at very high output on an entry-level unit.
Can the Denon AVR-X6800H drive the KEF LS50 Meta?
Denon AVR-X6800H states a 4Ω-minimum rating; the KEF LS50 Meta dips to a stated 3.5Ω minimum, a little below that floor. Most receivers handle a marginal dip at normal volumes — it's worth watching only at very high output on an entry-level unit.
Computed from the catalog's normalized fields — the same fields the builder's compatibility engine reads. A missing field reads as "can't check", never as a pass.
Check either one against your own build →Gaming & connectivity · answered from the spec sheets
Can the Marantz CINEMA 30 and Denon AVR-X6800H pass 4K/120 through?
The Marantz CINEMA 30 states 40 Gbps HDMI bandwidth — enough for full 4K/120; the Denon AVR-X6800H states 40 Gbps HDMI bandwidth — enough for full 4K/120.
The verdict
Identical on every performance field we record — 140W at the same strict context, 11 amplified/13 processing channels, four subs, XT32 on both. Buy the Denon AVR-X6800H if the live prices favor it, the Marantz CINEMA 30 for its stated trigger/Roon extras and the design — the data itself can't split them, and we say so.
Performance per recorded fieldEither — 0.0 dB power difference and full topology parity — a genuine spec-sheet dead heat.
Custom racks / Roon librariesMarantz CINEMA 30 — 3 stated triggers and Roon Tested on the Marantz; the Denon's trigger count is unstated.
What our normalized data adds
NOT ON THE SPEC SHEETS- 0.0 dB, verified: both flagships state 140W at 8Ω / two channels driven / 0.05% THD — identical number, identical context, stored with both values.
- Both power 11 channels and process 13, with 4 independent sub pre-outs and XT32 — full 7.x.4-from-one-box parity in stated fields.
- The recorded asymmetries: Marantz states 3 trigger outputs, Roon Tested, and a stated 42.8 lb chassis vs the Denon's 34.4 — mass and plumbing, not performance claims.
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