Denon AVR-X3900H 9.4 Channel 105W 4k/8k Dolby Atmos Receiver
The Denon AVR-X3900H delivers immersive home theater experiences with powerful multichannel sound, high-resolution video support, advanced room correction, and flexible system configurations, plus whole-home streaming Powered by HEOS™.
- 9.4 channels
- 105 watts of power
- 3D audio
- 4K/8K HDMI
- Powered by HEOS™
- Dirac Live ready
Shipping
Most orders ship within 1–3 business days. We deliver across Canada. Large items such as speakers and TVs may require freight shipping — our team will contact you to arrange delivery.
Returns
We accept returns within 30 days of delivery for unused items in original packaging. Contact us at support@HomeAutomationDesigns.com to initiate a return.
Installation Services
Professional installation available in the Ontario GTA & Hamilton area and Edmonton, Alberta. Our certified technicians ensure your system is set up correctly and working perfectly. Contact us to book a consultation.
Key Technologies














HEOS® puts whole-home sound at your fingertips
Imagine a world where filling your home with music is as easy as hitting Play. That’s HEOS. Wirelessly stream your favorite music and audio entertainment to every room. Control it all with the free HEOS app. Get up and running in minutes and start streaming without the stress. The HEOS app makes setup quick and seamless—no wires, no hassles, just pure sonic bliss.

High-performance gaming
Serious gamers will enjoy ultra-smooth 4K play, lightning-fast response, and 3D audio that moves with the action. Variable Refresh Rate, Auto Low Latency Mode, and AMD FreeSync keep gameplay fluid and responsive.

STABLE AND RELIABLE - 70% Guarantee
As surround systems grow, maintaining consistent power across speakers becomes critical to preserving balance and impact. Denon’s 70% Power Guarantee means our AVRs deliver over 70% of rated output to up to five channels at the same time—helping dialogue stay clear, effects stay controlled, and dynamics feel natural as your system expands beyond stereo into multichannel surround.

Advanced room correction and system optimization
A built-in suite of Audyssey room correction tools optimizes sound for your space, with the option to upgrade to Dirac Live room correction tools for even more precise system tuning.
Advanced capabilities, effortlessly delivered

Immersive audio, precisely rendered
Movies, games, and music unfold with enveloping sound that maintains clarity, scale, and spatial detail across every moment.

Surround sound designed for your space
Flexible surround and height channel options support immersive 3D audio across a wide range of room sizes and layouts.

Confident control, refined performance
Advanced system management and automatic tuning deliver consistent, balanced performance without ongoing manual adjustment.
Built for serious home theater





The Denon AVR-X3900H is a 9.4-channel Dolby Atmos receiver built to anchor a serious home theater system, delivering 105 watts per channel across 11.4 processing channels for large, multi-height speaker layouts. It supports the full range of modern surround formats — Dolby Atmos, DTS:X, Auro-3D, IMAX Enhanced, and 360 Reality Audio — so soundtracks and music alike get accurate, immersive placement. On the video side, six HDMI inputs and two outputs pass 8K and 4K signals with Dolby Vision, plus Variable Refresh Rate and Auto Low Latency Mode that keep next-gen consoles and PCs responsive for gaming. Four independent subwoofer outputs give you real control over bass tuning, while built-in Audyssey calibration and Dirac Live readiness make it easy to correct sound for the room. HEOS wireless streaming adds whole-home multi-room audio, letting the X3900H double as the hub for both home theater and everyday music playback.
Technical Information
| Number of Processing Channels | 11.4 |
|---|---|
| Subwoofer Out | 4 (Independent) |
| Number of Power Amps | 9 |
| Power Output | 105 W (8 ohm, 20 Hz-20 kHz, 0.08% 2ch Drive) |
| 135 W (6 ohm, 1 kHz, 0.7% 2ch Drive) | Multi-Source / Multi-Zone |
| 2 | Front Display |
| 1 line FLD | GUI Languages |
| 3 (English/Français/ Español) | System Remote Control |
| RC-1262 | Power Consumption in W |
| 660W | Power Consumption No-Sound (ECO on/off) in W |
| 60W / 100W | Standby Consumption in W |
| 0.1 | CEC Standby Consumption in W |
| 0.5 | Network Standby Consumption in W |
Inputs/Outputs
| HDMI In/Out | 6/2 |
|---|---|
| Analog In/Out | 5/- |
| Phono (MM) In | Yes |
| Digital In Optical, Coaxial | 2, 2 |
| Multi-zone Analog Preouts | 1 |
| Multichannel Pre-Out | Yes (11.4) |
| Number of Speaker Terminals | 11 |
| Speaker A/B | Assignable |
| Bi-amp Drive | Assignable |
| Multi-Zone Speaker Terminal | Assignable |
Dimensions
| Antenna Horizontal (W × D × H) in inches | 17.1 × 15.3 × 6.6 |
|---|---|
| Antenna Vertical (W × D × H) in inches | 17.1 × 15.3 × 9.3 |
| w/o Antenna (W × D × H) in inches | 17.1 × 14.9 × 6.6 |
| Weight in lbs | 27.6 |
| Weight in lbs (Packaging) | 34.6 |
Q How many channels does the AVR-X3900H support, and how much power does it deliver?
It has 9.4 amplified channels (with 11.4 channels of processing), delivering 105 watts per channel at 8 ohms. It also includes four independent subwoofer outputs, so you can run a large, immersive multichannel setup.
Q What surround sound formats does it support?
It supports Dolby Atmos, DTS:X, Auro-3D, IMAX Enhanced, and 360 Reality Audio — covering the major object-based and immersive audio formats used in modern movies and music.
Q Is this receiver ready for next-gen 4K/8K sources and gaming?
Yes. It has 6 HDMI inputs (all 8K-compatible) and 2 HDMI outputs with eARC, supports 4K/8K pass-through and upscaling, Dolby Vision, HDR10+, and HLG, and includes gaming-friendly features like Variable Refresh Rate and AMD FreeSync.
Q Does it support multi-room audio or voice control?
Yes — it has built-in HEOS multi-room streaming for playing audio across multiple rooms, plus Bluetooth and WiFi connectivity, and it's compatible with Josh.ai voice control.
Q Does the receiver include automatic room calibration?
Yes, it includes Audyssey room correction to tune the sound to your room, and it's also compatible with Dirac Live for more advanced calibration.






