Denon Home 400 – Six-Driver Stereo with True Dolby Atmos Height

The Denon Home 400 is a premium wireless smart speaker engineered for larger living spaces. Its custom six-driver array — including dedicated up-firing height speakers — delivers real Dolby Atmos Music with a three-dimensional soundstage that extends both wide and tall. Powered by HEOS and supporting Wi-Fi 6E, AirPlay 2, and Bluetooth, it's built for listeners who want immersive, room-filling audio without a complicated setup.

Key Features

• Six-Driver Array: Dual wide-range tweeters, two 4.5-inch woofers, and two integrated 1-inch up-firing height speakers — each powered by its own amplifier.
• Dolby Atmos Music: Up-firing drivers create real vertical dimension for spatial audio, not just a simulated effect.
• HEOS Multi-Room: Group with other Denon or Marantz HEOS speakers, stream to multiple rooms, or build a 5.1 wireless home cinema with the Denon Home Sound Bar 550.
• Wi-Fi 6E + AirPlay 2 + Bluetooth: Stable, high-bandwidth wireless across all platforms.
• USB-C & Aux-In: Wired input for turntables, portable players, or any line-level source.
• HEOS App Control: Stream Tidal, Qobuz, Spotify Connect, Amazon Music HD, or high-resolution files from NAS/USB.
• Stereo & Surround Pairing: Two units pair wirelessly for true stereo; connects to Denon Home 550 soundbar for 5.1 surround.

Customer Benefits

Step up from a single-driver "smart speaker" to a genuine multi-driver stereo system with height. The Denon Home 400 fills larger rooms convincingly and remains the natural mid-point in the Denon Home ecosystem — powerful enough to anchor a living room, flexible enough to integrate into any HEOS setup.

Quick Specs

• Drivers: 2 × tweeter (wide-range) + 2 × 4.5-inch woofer + 2 × 1-inch height (up-firing)
• Amplification: 6 × Class-D (one per driver)
• Wi-Fi: 2.4 / 5 / 6 GHz (Wi-Fi 6E)
• Bluetooth: Yes
• AirPlay 2: Yes
• Inputs: USB-C, 3.5 mm Aux-In
• Power: Built-in AC, 100–240 V

What's in the Box

• Denon Home 400 wireless speaker
• Power cable
• Quick start guide

Use Cases / Ideal For

Living rooms, open-plan spaces, dining areas, and home offices that demand more than a compact speaker can deliver. The Denon Home 400 is also the recommended stereo pairing unit for anyone building a wireless 5.1 system around the Denon Home Sound Bar 550.

Compatibility

Works with the HEOS app (iOS/Android), Apple AirPlay 2, Spotify Connect, Tidal Connect, Amazon Music HD, Qobuz, and all HEOS-enabled Denon and Marantz products. Supports DSD playback via USB or NAS.

Pros & Cons

• ✅ Real up-firing drivers for genuine Dolby Atmos height — not a simulation
• ✅ Six dedicated amplifiers for precise, balanced driver control
• ✅ Full HEOS ecosystem integration with stereo and 5.1 pairing
• ✅ Wi-Fi 6E for rock-solid hi-res streaming
• ⚠️ Requires mains power — no battery option
• ⚠️ True stereo requires a second unit

The Denon Home 400 is the serious listener's choice for Dolby Atmos in a single, elegant package.