Denon Home 400 Charcoal
Wireless Smart Speaker Powered by HEOS With Dolby Atmos Music
Model DENONHOME400BKE2 · Series Denon Home
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.
Read moreAt a glance
All specifications- Dimensions (W × H × D)
- 300 × 219 × 150 mm
- Weight
- 4.2 kg
- Bluetooth
- Yes
- Wi-Fi
- Yes
- AirPlay 2
- Yes
- Dolby Atmos Playback
- Yes
Overview
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.
Highlights
- Standalone stereo speaker
- Dolby Atmos Music
- Six-driver array with height speakers
- Bluetooth, Wi-Fi, AirPlay 2
- Powered by HEOS
- Expandable system
About Denon
For over a century, we've been crafting cutting-edge audio products that deliver on ultimate detail, inspired by our Japanese heritage, with each product hand-tuned by our sound master. Prepare to hear sound differently.
All Denon productsFeatures
11

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.

Hear the Denon difference
Each Denon Home product is precisely tuned in Japan by the Denon Sound Master. The result is full, detailed sound that fills your space and makes every song feel more alive and engaging.

Style that elevates your space
Designed to complement any space and engineered for extraordinary sound, Denon Home looks as good as it sounds.

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 Music
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.
Powered by HEOS™
HEOS is the heart of the Denon ecosystem, uniting your music and devices in one easy-to-use app. Set-up takes minutes, and control is effortless — stream from your favourite services, adjust sound or add speakers when you’re ready.
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.
Specifications
- Dimensions (W × H × D)
- 300 × 219 × 150 mm
- Width, height and depth, without cables.
- Weight
- 4.2 kg
- Per unit, out of the box.
- Bluetooth
- Yes
- Wi-Fi
- Yes
- AirPlay 2
- Yes
- Model code
- DENON-HOME-400-CHARCOAL
- Quote it when you ask a specialist.
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.
- Weight
- 4.2 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
Downloads
2
- Denon Home 400 Online manualManual · English · Online
- Denon Home 400 Info Sheet (English)Datasheet · English · PDF, 1.1 MBDownload
Awards and press
1
iF Design Award 2026
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