A head-to-head av receiver comparison to help you pick the right one for your room.
Updated August 20, 2026
Verdict
The step from the X1800H to the X3800H buys better room correction, more channels and more inputs, at roughly two and a half times the price. Buy the X1800H for a 5.1.2 system in a normal room; buy the X3800H if you are running more channels, multiple subwoofers, or several 4K 120 Hz sources.
| Denon AVR-X1800H | Denon AVR-X3800H | |
|---|---|---|
| Room correction | Audyssey MultEQ | Audyssey MultEQ XT32, far more resolution |
| Channels | 7.2 | 9.4 |
| Subwoofer outputs | Two, same signal | Four, independently managed |
| HDMI 2.1 inputs | Three | Six |
| Pre-outs | Limited | Full |
| Best for | 5.1.2 in a normal room | Larger systems, multiple subs |
You are building a 5.1.2 system, you have one subwoofer, and you have one or two high-refresh sources. It does that job properly and the money saved buys better speakers.
Check Denon AVR-X1800H on Amazon
You want independent subwoofer management, more than seven channels, or you have several consoles and a PC feeding the system. XT32 is also a meaningful step up in correction resolution.
Check Denon AVR-X3800H on Amazon
Yes, particularly in the bass. It uses far more filter resolution, and the difference is most audible exactly where rooms cause the most trouble.
Only if you run more than one subwoofer, but then it matters a lot. Independent management lets the receiver time-align and level-match each one, which is how you get even bass across several seats.
Often, yes. If the choice is the cheaper receiver with better speakers or the better receiver with lesser speakers, speakers usually win. The exception is a difficult room, where correction earns its place.
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these units side by side. Confirm current prices and specifications before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.