The tier badges don't decide this one: like-for-like, the Denon AVR-S970H rates 10W higher than the X1800H with the same MultEQ XT correction and the same stated impedance rating, and it's the side with a stated HDMI 2.1 port count and a second output. Buy whichever is cheaper on the day — the sheets give the S970H the small edge.
As tracked by Home Theater Builder: the Denon AVR-X1800H tracks at $849; the Denon AVR-S970H at $799.How we verify this data →
Buy the S970H if you run two displays: it states two HDMI outputs to the X1800H's one, and rates 90W to 80W under the same 8Ω / two-channel / 0.08% THD context. With one display, the X1800H does the same job — the same 7.2 layout and the same Audyssey MultEQ XT — $849 vs $799 as tracked today.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED
Spec
Denon AVR-X1800H
Denon AVR-S970H
Price
$849
$799
Brand
Denon
Denon
Channel configuration
7.2
7.2
Main channels
7
7
Processing channels
9
7
Subwoofer pre-outs
2
2
Zone 2 capable
Yes
Yes
Zone 3 capable
No
not stated
Watts per channel (8 Ω)
80
90
THD (%)
0.08
0.08
Channels driven (power rating)
two channels driven
two channels driven
Impedance range
4 – 16 Ω/ohms
4 – 16 Ω/ohms
Speaker impedance, min (Ω)
4
4
Speaker impedance, max (Ω)
16
16
Dolby Atmos
Yes
Yes
DTS:X
Yes
Yes
Room correction system
Audyssey MultEQ XT
Audyssey MultEQ XT
Measurement mic included
Yes
Yes
HDMI inputs
6
6
HDMI outputs
1
2
HDMI max bandwidth (Gbps)
40
40
HDMI 2.1 ports
4
not stated
HDMI eARC ports
1
1
HDR support
HDR10, Dolby Vision, HLG, HDR10+, Dynamic HDR
HDR10, Dolby Vision, HLG, HDR10+
VRR passthrough
Yes
Yes
ALLM passthrough
Yes
Yes
Phono input
Yes
Yes
Wi-Fi
Yes
Yes
Bluetooth
Yes
Yes
AirPlay 2
Yes
Yes
HEOS
Yes
Yes
Width (in)
17.1
17.1
Height (in)
6
6.6
Depth (in)
13.3
13
Weight (lbs)
19
21
Power consumption (W)
430
500
Max passthrough resolution
not stated
8K 60
Streaming services
not stated
Spotify Connect, Tidal Connect, Amazon Music HD
Form factor
not stated
full size
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
This is a like-for-like comparison — 80W (X1800H) vs 90W (S970H), both at 8Ω, two channels driven, 0.08% THD — and it's the S-line unit that rates HIGHER, by about 0.5 dB. Both carry Audyssey MultEQ XT, both are 7.2 designs with two sub pre-outs, and both state a 4–16Ω impedance rating. The S970H also states a second HDMI output and four full-bandwidth HDMI 2.1 ports in our data.
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 Denon AVR-X1800H drive the KEF LS50 Meta?
Denon AVR-X1800H 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-S970H drive the KEF LS50 Meta?
Denon AVR-S970H 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.
Gaming & connectivity · answered from the spec sheets
Can the Denon AVR-X1800H and Denon AVR-S970H pass 4K/120 through?
The Denon AVR-X1800H states 40 Gbps HDMI bandwidth — enough for full 4K/120; the Denon AVR-S970H states 40 Gbps HDMI bandwidth — enough for full 4K/120.
The verdict
The tier badges don't decide this one: like-for-like, the Denon AVR-S970H rates 10W higher than the X1800H with the same MultEQ XT correction and the same stated impedance rating, and it's the side with a stated HDMI 2.1 port count and a second output. Buy whichever is cheaper on the day — the sheets give the S970H the small edge.
The tier ladder inverts on the amp spec: the S-line S970H rates 90W to the X-line X1800H's 80W under the IDENTICAL 8Ω / two-channel / 0.08% THD context.
Both carry Audyssey MultEQ XT and a stated 4–16Ω impedance rating — the fields that usually separate tiers are equal here.
The S970H states 2 HDMI outputs and 4 full-bandwidth HDMI 2.1 ports; the X1800H states a single output.
