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 $1,900; the Denon AVR-X2800H at $999.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
Price
$1,900
$999
Brand
Anthem
Denon
Main channels
5
7
Subwoofer pre-outs
2
2
Dolby Atmos
Yes
Yes
DTS:X
Yes
Yes
IMAX Enhanced
Yes
not stated
Room correction system
ARC Genesis
Audyssey MultEQ XT
Measurement mic included
Yes
Yes
HDMI inputs
7
6
HDMI outputs
2
2
HDMI version
2.1
not stated
HDMI eARC ports
1
1
Max passthrough resolution
8K 60
8K 60
VRR passthrough
Yes
Yes
ALLM passthrough
Yes
Yes
Wi-Fi
Yes
Yes
Bluetooth
Yes
Yes
IP control
Yes
not stated
Streaming services
Spotify Connect
Spotify Connect, Tidal Connect, Amazon Music HD
Channel configuration
not stated
7.2
Processing channels
not stated
7
Zone 2 capable
not stated
Yes
Watts per channel (8 Ω)
not stated
95
THD (%)
not stated
0.08
Channels driven (power rating)
not stated
two channels driven
Impedance range
not stated
4 – 16 Ω/ohms
Speaker impedance, min (Ω)
not stated
4
Speaker impedance, max (Ω)
not stated
16
HDMI max bandwidth (Gbps)
not stated
40
HDR support
not stated
HDR10, Dolby Vision, HLG, HDR10+, Dynamic HDR
Phono input
not stated
Yes
AirPlay 2
not stated
Yes
HEOS
not stated
Yes
Form factor
not stated
full size
Width (in)
not stated
17.1
Height (in)
not stated
6.6
Depth (in)
not stated
13
Weight (lbs)
not stated
21
Power consumption (W)
not stated
500
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.
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.
Where to buy
CHEAPEST FIRST · NOT COMMISSION-RANKED
Anthem MRX 540 8K
Tracked at Crutchfield · price not quotable from a search page
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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