Introduced by Denon in 2014 as the Home Entertainment Operating System (HEOS), this wireless multi-room audio platform revolutionized home audio streaming by enabling seamless music distribution throughout homes via Wi-Fi networks. Initially launched as HS1 in 2014, Denon enhanced the system with the second-generation HS2 in 2016, adding advanced features and broader compatibility. HEOS technology is now built into every current Denon and Marantz receiver, creating an integrated ecosystem that connects multiple rooms and audio sources. The system supports high-resolution audio playback, streaming from services like Amazon Music, Pandora, TuneIn, Qobuz, TIDAL, and others, while offering advanced features like AirPlay 2, Bluetooth connectivity, and voice assistant integration with Amazon Alexa and Google Assistant. Controlled through the free HEOS app, the platform allows users to stream music, group rooms, and manage playback across entire homes, supporting both Denon and Marantz components along with dedicated HEOS speakers. As a proprietary technology platform rather than an independent company, HEOS represents Denon's commitment to wireless multi-room audio innovation, establishing itself as a leading solution in the connected home audio market.
Denon's 2025 AVR-S Series offers five models, ranging from the entry-level AVR-S270BT ($399) to the flagship AVR-S970H ($949).
Key features include Class D amplification, HDMI 2.1 support for 4K/8K video, and compatibility with Dolby Atmos and DTS:X.
The AVR-S670H and higher models introduce HEOS wireless streaming, AirPlay 2, and advanced room calibration using Audyssey.
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Denon, Marantz, and Classé have rebranded their wireless audio technology platform as "Powered by HEOS," emphasizing its enhanced multi-room audio capabilities and user-friendly design.
HEOS has expanded significantly since its launch in 2014, now supporting over 5 million devices with features like hi-res streaming, Roon Ready certification, and multi-zone audio configurations.
Recent updates to the HEOS platform include a redesigned app, home screen customization, room grouping presets, and support for Qobuz streaming and future Spotify Lossless audio.
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Qobuz Connect integration will be available for BluOS devices starting September 2025, enabling direct streaming from the Qobuz app.
The update supports high-resolution audio up to 24-bit/192kHz, ensuring premium sound quality without the need for detours through intermediary apps.
BluOS operates as a multi-room audio ecosystem, compatible with devices from brands like Bluesound, NAD Electronics, PSB Speakers, and more.
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HEOS platform has released the mobile app update U37, introducing substantial enhancements to improve user experience and functionality.
Integration with Qobuz offers access to high-resolution audio streaming, requiring app updates and firmware upgrades for HEOS-compatible devices.
A demonstration mode allows users to explore HEOS features without setup, streamlining onboarding and feature previews.