Denon's two step-up receivers look almost identical on the spec sheet: both are 7.2 channels with seven amplifiers, two subwoofer outputs, and a phono input. The X2900H costs $500 more. Some of that buys real things — but not the thing most people assume. Denon's own comparison table lists the same six HDMI inputs, three of them 8K-capable, on both.
For most people, the X1800H. It runs 4K/120 gaming with VRR on its three full-speed HDMI inputs, decodes Atmos, and costs $500 less.
The X2900H is worth the premium mainly if you need a second HDMI output (a TV plus a projector), want the Dirac Live upgrade path, or game on an AMD-based PC where FreeSync matters. Otherwise, put the $500 toward speakers or a subwoofer.
| Denon AVR-X1800H | Denon AVR-X2900H | |
|---|---|---|
| Denon list price | $849 | $1,349 |
| Amplified channels | 7.2 (7 amplifiers) | 7.2 (7 amplifiers) |
| Power, 8 ohms (20Hz–20kHz, 2 channels) | 80W | 95W |
| HDMI inputs | 6 (3 are 8K-capable) | 6 (3 are 8K-capable) |
| HDMI outputs | 1 (eARC) | 2 (1 eARC) |
| Gaming features listed | VRR, ALLM, QFT | VRR, ALLM, AMD FreeSync |
| Room correction | Audyssey MultEQ XT | Audyssey MultEQ XT, optional Dirac Live RC upgrade |
| Subwoofer outputs | 2 | 2 |
| Phono input | Yes (MM) | Yes (MM) |
| Multi-room zones | 2 | 2 |
Specs are from Denon's product pages and comparison table.
This is the part that surprises people. Neither receiver has more full-speed inputs than the other — each lists six HDMI inputs with three of them 8K-capable, meaning three inputs that pass 4K/120 and 8K/60. The other three are standard-speed inputs.
Three full-speed inputs is plenty for most setups: a PS5, an Xbox Series X, and a gaming PC or streaming box. If you have a fourth 4K/120 device, neither receiver is the right one — see the Denon X3900H, where all six inputs are 8K-capable. Our gaming receiver guide covers how to count what you actually need.
What the X2900H does add is a second HDMI output. That's useful if you want the receiver to feed both a TV and a projector, or a second display in another spot. The X1800H has a single output.
The X2900H is rated at 95W per channel against the X1800H's 80W. That works out to about 0.75 dB of extra output — well under what most listeners can hear. Where the extra headroom matters is with low-sensitivity speakers or a large room. For a typical living room with efficient bookshelf or tower speakers, 80W is plenty.
Both receivers include Audyssey MultEQ XT and a measurement microphone. Denon's X2900H page also lists an optional Dirac Live RC upgrade; the X1800H page lists only Audyssey. If you're planning to use Dirac Live, the X2900H is the one with that path. Our room correction guide explains how Dirac and Audyssey compare and whether the upgrade is worth it for your room.
If you also see the previous-generation AVR-X2800H around: as of September 2026, Denon's own store lists it at $999 (reduced from $1,299) with the same 95W rating, the same six-input/three-8K layout, and two HDMI outputs. It's worth comparing against the X2900H if you find it discounted.
7.2 channels at 80W, three full-speed HDMI inputs with VRR and ALLM, Audyssey MultEQ XT, and a phono input. This is the pick we feature on our receivers page.
Denon list price: $849 Check price on Amazon Prices change often — verify current pricing on Amazon.7.2 channels at 95W, a second HDMI output, AMD FreeSync support, and an optional Dirac Live upgrade.
Denon list price: $1,349 Check price on Amazon Prices change often — verify current pricing on Amazon.Need more full-speed HDMI inputs or a nine-amplifier build? Compare the X3900H and X4800H.