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Anthem MRX 540 8K vs Denon X2800H
Anthem's entry point vs the mid-range default — which should you buy?
The short answer
Buy the Denon AVR-X2800H unless ARC Genesis is specifically why you're here — it amplifies seven channels to the Anthem's five, its power figure is the fully-qualified one, and it states the impedance rating the Anthem's sheet lacks. The MRX 540 8K is a five-channel ticket into Anthem's correction system, and honest about nothing else being the point.
As tracked by Home Theater Builder: the Anthem MRX 540 8K tracks at $1,030; the Denon AVR-X2800H at $1,299. How we verify this data → The MRX 540 8K is how most people first afford ARC Genesis; the X2800H is what the same money usually buys instead. The channel math is the part nobody quotes.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED| Spec | Anthem MRX 540 8K | Denon AVR-X2800H |
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| Price | $1,030 | $1,299 |
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| Brand | Anthem | Denon |
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| Main Channels | 5 | 7 |
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| Sub Pre Outs | 2 | 2 |
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| Dolby Atmos | Yes | Yes |
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| Dts X | Yes | Yes |
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| Imax Enhanced | Yes | not stated |
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| Room Correction System | ARC Genesis | Audyssey MultEQ XT |
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| Measurement Mic Included | Yes | Yes |
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| HDMI Inputs | 7 | 6 |
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| HDMI Outputs | 2 | 2 |
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| HDMI Version | 2.1 | not stated |
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| HDMI Earc Port Count | 1 | 1 |
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| Max Passthrough Resolution | 8K 60 | 8K 60 |
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| VRR Passthrough | Yes | Yes |
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| ALLM Support | Yes | Yes |
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| Wifi | Yes | Yes |
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| Bluetooth | Yes | Yes |
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| Ip Control | Yes | not stated |
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| Streaming Services | Spotify Connect | Spotify Connect, Tidal Connect, Amazon Music HD |
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| Channel Config | not stated | 7.2 |
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| Processing Channels | not stated | 7 |
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| Zone 2 Capable | not stated | Yes |
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| Watts Per Channel 8ohm | not stated | 95 |
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| THD Percent | not stated | 0.08 |
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| Power Measurement Channels Driven | not stated | two channels driven |
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| Impedance Range | not stated | 4 – 16 Ω/ohms |
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| Impedance Min Ohms | not stated | 4 |
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| Impedance Max Ohms | not stated | 16 |
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| HDMI Max Bandwidth Gbps | not stated | 40 |
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| HDR Support | not stated | HDR10, Dolby Vision, HLG, HDR10+, Dynamic HDR |
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| Phono Input | not stated | Yes |
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| Airplay2 | not stated | Yes |
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| Heos | not stated | Yes |
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| Form Factor | not stated | full size |
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| Width Inches | not stated | 17.1 |
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| Height Inches | not stated | 6.6 |
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| Depth Inches | not stated | 13 |
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| Weight Lbs | not stated | 21 |
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| Power Consumption W | not stated | 500 |
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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
The Anthem amplifies FIVE channels (processing seven — a 5.1.2 needs an external stereo amp); the Denon amplifies seven. Anthem states 100W into 8Ω with no THD or channels-driven context in our data; Denon states 95W fully qualified at 8Ω, two channels, 0.08% THD — so the stickers can't be ranked, and we flag it. Both state 8K-capable HDMI (the Anthem states HDMI 2.1 and 8K/60; the Denon a curated 40 Gbps). The Denon also states a 4–16Ω impedance range; the Anthem's range is unstated.
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 Anthem MRX 540 8K drive the KEF LS50 Meta?
Anthem MRX 540 8K publishes no rated impedance range, so the pairing with the KEF LS50 Meta (which dips to a stated 3.5Ω minimum) can't be verified from its spec sheet — we treat that as "can't check", not a pass.
Can the Denon AVR-X2800H drive the KEF LS50 Meta?
Denon AVR-X2800H 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 →The verdict
Buy the Denon AVR-X2800H unless ARC Genesis is specifically why you're here — it amplifies seven channels to the Anthem's five, its power figure is the fully-qualified one, and it states the impedance rating the Anthem's sheet lacks. The MRX 540 8K is a five-channel ticket into Anthem's correction system, and honest about nothing else being the point.
5.1.2 without extra boxesDenon AVR-X2800H — 7 amplified channels vs 5 — the Anthem needs an external stereo amp to place heights.
ARC Genesis on a budgetAnthem MRX 540 8K — The stated correction system is the model's entire case, and it's a real one.
Spec-sheet completenessDenon AVR-X2800H — Fully-qualified power (95W, 8Ω/2ch/0.08%) and a stated 4–16Ω rating; the Anthem states neither context nor range.
What our normalized data adds
NOT ON THE SPEC SHEETS- Amplified channels: 5 (Anthem, processing 7) vs 7 (Denon) — a 5.1.2 layout needs an external amp on one side and not the other, which neither product page leads with.
- Power honesty is asymmetric: Anthem's 100W carries no stated THD or channels-driven context in our data; Denon's 95W is fully qualified (8Ω/2ch/0.08%) — flagged as non-comparable.
- The Denon states a 4–16Ω impedance rating; the Anthem's range is unstated.
- Both state 8K/60-capable HDMI — the digital baseline is comparable, whatever else the tiers imply.
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