Extraordinary sound in every room
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.

Premium sound with wireless flexibility
Enjoy balanced, detailed sound with clear highs and full bass, delivered by a custom-engineered six-speaker array.

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.
Pair speakers for bigger sound
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.

Sonic Innovation
For the Past 110 Years
For more than a century, we've crafted cutting-edge audio products that deliver the ultimate detail. Our Japanese heritage inspires us, and each product is hand-tuned by our sound master. Prepare to hear sound differently.
Specifications
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