Denon Home 400
Wireless Smart Speaker Powered by HEOS With Dolby Atmos Music
The Denon Home 400 wireless smart speaker delivers Dolby Atmos Music, enveloping you in rich, expansive sound that reveals every nuance. Built-in dual height speakers add a lifelike vertical dimension for a more immersive soundstage, while HEOS makes setup and streaming simple. Crafted with an elevated design aesthetic, the Denon Home 400 is the ultimate expression of performance and style.
Easy setup, instant enjoyment
Whether you’re cueing up your morning playlist or setting the mood for dinner, Denon Home makes great sound effortless. Denon Home wireless smart speakers connect instantly, letting you stream from your favorite services or through the HEOS app.
Style that elevates your space
Designed to complement any space and engineered for extraordinary sound, Denon Home looks as good as it sounds.
Premium sound with wireless flexibility
High-performance drivers for powerful, dimensional sound
Enjoy balanced, detailed sound with clear highs and full bass, delivered by a custom-engineered six-speaker array.

Dolby Atmos sound
Experience music that feels bigger, wider, taller, and more alive with 3D Dolby Atmos Music—all from one speaker.
High resolution streaming
Enjoy music in remarkable detail with high-resolution streaming over Wi-Fi. Stream in lossless quality from formats like DSD and leading high-resolution services including TIDAL, Qobuz, and Amazon Music HD.
Sound that fits your space
Use built-in EQ to adjust bass, treble, and placement settings to keep music sounding balanced and natural no matter where you place your speaker.

Designed for all the ways you listen
Play your favorite music your way—stream directly from leading apps; connect smart phones, portable media players, and other audio sources to the aux input; or connect with Bluetooth, AirPlay 2, or USB.
Stereo pairing
Each Denon Home speaker delivers stereo and Dolby Atmos Music on its own—but pairing two speakers creates an even wider and more immersive listening experience.
A system that grows with you
Group speakers or create zones for flexible listening throughout your home. Play a different song in every room or create a seamless whole-home soundtrack.
Features
- Dolby Atmos Playback Yes
- High Resolution Audio Support Yes
- Stereo Pairing Yes
- Use as wireless surround speakers for Denon Home Sound Bar 550 Yes
- Supports Subwoofer Powered by HEOS Yes
- Bass and Treble Control Yes
- Width Control Yes
- Height Control Yes
- Microphone Yes
- Works with Siri Yes
General
- Power Supply (Built-In) AC 100 – 240 V, 50/60 Hz
- Dimensions (W × D × H) 300 × 150 × 219 mm 11.8 × 5.9 × 8.6 in.
- Weight4.2 kg / 9.26 lbs
- Construction Multi-Channel
- Built-in Class-D Power Amplifiers 6
- Drivers 6
- Tweeter 2× 19 mm / 0.75 in.
- Upfiring 2× 25 mm / 0.95 in.
- Woofer 2× 114 mm / 4.5 in.
Technical Information
- Microphone On/off Yes
- Quick Select Buttons 3
- Volume (+/-) Yes
- Play/Pause Yes
- Action Button (O) Activate enabled voice assistant
- Powered by HEOS Yes
- Wi-Fi 2.4 GHz, 5 GHz, 6GHz; IEEE 802.11a/b/g/n/ac/ax
- AirPlay 2 Yes
- Bluetooth Yes
- USB-C port for direct connection of stored music or ethernet adapter Yes
- 3.5 mm AUX Input Yes