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Denon - AVR-X3900H 9.4 Ch. 105W 4K/8K Dolby Atmos AV Receiver - Black

Model: AVR-X3900H
SKU: 6665561
Sold byBest Buy

Customers are saying

Customers consistently note that the audio quality of this product is excellent. Users have reported no issues or concerns regarding the sound performance during their experience.

Generated by AI based on customer reviews.
See it in-store: Oakdale (11.2 miles away) 
is the closest store with a demo model on display.
Features

  • Premium power for clear, detailed sound

    With 105 watts per channel of clean amplification, the AVR-X3900H delivers controlled, dynamic sound that preserves dialog clarity, reveals detail, and keeps movies, music, and games engaging at any volume.

  • 3D audio immersion

    Lose yourself in breathtaking 360-degree sound with Dolby Atmos, DTS:X, AURO-3D, IMAX Enhanced, and 360 Reality Audio. Experience immersive audio that surrounds you from every direction, pulling you deeper into movies, music, and games. Transform everyday entertainment into a cinematic experience.

  • One hub for all your entertainment

    Enjoy a more intuitive way to bring all your entertainment together. With TV, gaming consoles, and streaming sources connected through a single 4K/8K-ready hub, everything works as part of one cohesive setup. Advanced HDMI connectivity supports high-resolution video and fast-moving visuals and streamlines connectivity, making setup straightforward and everyday use effortless.

  • Support for high-definition picture

    Watch movies and shows in crisp 4K or 8K detail, with Dolby Vision technology and HD content upscaled for modern displays to maximize resolution, color, and contrast.

  • Build a surround system your way

    Support for 9 amplified channels with 11-channel processing gives you flexibility to design immersive surround and height speaker layouts that adapt to your space.

  • Directional subwoofer mode

    Immerse yourself in powerful, evenly distributed lows with support up to four subwoofers. Standard mode blends all subwoofers to smooth output across the room for consistent impact at every seat. You won’t hear audible peaks or dips—just deep, room-filling bass. Directional mode associates bass effects more closely with onscreen action, helping low-frequency energy feel intentional and controlled without overwhelming the room.

  • 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.

  • High-performance gaming

    Built for serious gaming, the AVR-X3900H delivers smooth motion and tight responsiveness. With 4K/120Hz support, Variable Refresh Rate, Auto Low Latency Mode, and AMD FreeSync, fast-paced action stays clean and fluid. Dolby Atmos and DTS:X deliver 3D sound that moves with the action, sharpening awareness and pulling you deeper into every world—whether you’re exploring vast landscapes or battling online.

  • Flexible multi-zone configuration, advanced web-based control

    The AVR-X3900H supports two independent sources across two zones, with dedicated audio pre-outs and zone 2 HDMI output. A new Web interface lets you set up and control your AVR remotely without a TV.

  • 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.

  • Legendary Denon sound

    Designed in Japan, the AVR-X3900H is precision-tuned by the Denon Sound Master to deliver the most lifelike performance possible. You get rich, expansive sound—so movies feel more cinematic, music feels more intimate, and you experience every moment exactly as it was meant to be heard.

  • Whole-home sound Powered by HEOS

    Great sound doesn’t stop at your TV. With HEOS, your AVR becomes the first zone in a flexible multiroom system, letting you stream music, TV audio, sports, podcasts, and other content to components Powered by HEOS throughout your home. Play the same song everywhere or choose different music for different spaces, all controlled from the HEOS app. It’s an easy way to grow from one room into a fully connected listening experience.

  • Confident control, day and night

    Operating your system should feel intuitive. Onscreen channel level monitoring provides real-time insight into speaker input levels by channel, helping you understand and adjust playback with confidence. A backlit remote supports confident navigation in low-light environments, while support for third-party control systems lets the AVR-X3900H integrate smoothly into smart-home or custom control environments.

  • Stream your way with Wi-Fi and Bluetooth

    Wi-Fi and Bluetooth connectivity support flexible streaming from your everyday devices. Bluetooth headphone support enables private listening for late-night movies or shared spaces, with onboard output level adjustment for fine-tuning volume even on headphones without their own controls.

  • Roon Ready

    Enjoy a more rewarding way to explore and listen to your music. With Roon Ready integration, your library comes together in one rich experience, complete with extended artist details, album credits, and intuitive navigation. Control playback from any Roon device and enjoy high-quality, bit-perfect audio delivered directly to your system. It’s a refined, music-first listening experience designed for deeper discovery and effortless control.

Specifications
  • Continuous Watts x Channel @ Ohms
    105 watts x 9 channels @ 8 ohms
    Number of Channels
    9
    Audio Only Inputs
    2 x Optical digital audio, 2 x Coaxial digital audio, 1 x Phono
    Audio/Video Inputs
    6 x HDMI 2.1
    Network Connector(s)
    1 x RS-232
    Video Pass-through
    2160 (4K)
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Reviews

Rating 4.6 out of 5 stars with 10 reviews

5 star rating. 9 reviews1 star rating. 1 review
90% would recommend to a friend
Customers are sayingCustomers consistently note that the audio quality of this product is excellent. Users have reported no issues or concerns regarding the sound performance during their experience.
This summary was generated by AI based on customer reviews.
  • Audio Quality (3)

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Incredible Power and Effortless Calibration

    I recently upgraded from another Denon AVR to this beast, and so far, so good. Setting up the room correction (Audyssey/Dirac capability) was smooth and easy, vastly improving the soundstage of my home theater right out of the box. The step up in power and processing is immediately noticeable. Driving a 5.1.4 Dolby Atmos setup is absolutely effortless for this unit, offering incredible clarity, crisp dialogue, and deep, dynamic bass management. Switching between 4K gaming and 8K streaming content is seamless with zero handshake or video pass-through issues. If you are looking for a robust, future-proof receiver that simplifies complex room calibration while delivering pristine audio, this is worth every penny. Highly recommended!

    Posted by Blyons2000

  • Rated 5 out of 5 stars

    Amazing Receiver

    I purchased this unit to replace a Sony STR AN1000. This was a massive upgrade. It’s currently powering a 5.2.4 system with no amplification. I did purchase and install DIRAC active room treatment, and wow, what a difference this made versus Sony‘s 360 spatial audio. The Denon is a hands-down better product than what I was using. I have no issues with HDMI switching and so far there have been no audio issues or concerns. Setup was easy and straightforward, and the UI is very intuitive. I feel like this is a very good receiver that will last me for years to come, and I would definitely recommend this to anyone with a similar sized system. For anyone curious my bed layer speakers are all Klipsch reference premier, and due to their sensitivity, this receiver has had no problems powering them at high volumes. However, I plan to get an external amplifier just to see if there is a difference. 10 out of 10 would buy again.

    Posted by Delt

  • Rated 5 out of 5 stars

    Awesome AVR from Denon

    I upgraded to this Denon AVR X3900H from my Denon AVR X1700H, which was a good entry AVR. The X3900H is much easier to setup than my X1700H. There are also more analog inputs and HDMI outputs. Setting up the Audyssey room correction was very fast. I'm using it on a 5.2.1 speaker set up, with the front speakers bi-amped. This AVR is also expandable it you want to add more amplifiers and up to 4 independant subwoofers. Hopefully, this will give me many years of listening pleasure for music and movies.

    Posted by Techboy57

  • Rated 5 out of 5 stars

    All I need and more

    I'm running this to its full capacity--almost--and thoroughly enjoy it. Looks great on the shelf. I've noticed it does run hot so I will be ensuring when I get the final cabinet for it that it breathes well and has plenty of openings in the back for the multiple connections coming from it.

    Posted by ArizonaBrent

  • Rated 5 out of 5 stars

    It was time to Upgrade

    I am not sure how this compairs to other new receivers because I was not able to compair I had to purchase on features and reviews that would work in my system. It sounds far superior to my 12 year old Onkyo TX-NR818 and yes I would recomend.

    Posted by NORB

See all customer reviews

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Audio QualitySound Quality, Power, Ease of use, Speaker Setup, ConnectivitySound Quality, Ease of use, Power, DesignAudio Quality
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Specs

Questions & Answers

  • Does this AV receiver include a remote control?

    Yes, a remote control is included with this AV receiver, and it features backlighting for use in low-light environments.

    This question and answer was generated by AI based on customer and product data.

  • Can I use this AV receiver for gaming?

    Yes, this AV receiver is built for high-performance gaming with support for 4K/120Hz, Variable Refresh Rate, Auto Low Latency Mode, and AMD FreeSync.

    This question and answer was generated by AI based on customer and product data.

  • How many channels does this AV receiver support?

    This AV receiver supports 9 amplified channels with 11-channel processing.

    This question and answer was generated by AI based on customer and product data.

  • Can I connect Bluetooth headphones to this AV receiver?

    Yes, this AV receiver supports Bluetooth headphone connectivity for private listening.

    This question and answer was generated by AI based on customer and product data.

  • Is this AV receiver compatible with wireless multi-room audio?

    Yes, this AV receiver features wireless multi-room audio technology powered by HEOS.

    This question and answer was generated by AI based on customer and product data.
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