Designed for 4K or 8K setups, the AVR-S66OH delivers superior 3D audio home theater/gaming experiences and supports the latest HDMI specifications.

Advanced 5-channel amplifier
Delivers maximum performance and 75W per channel to provide the classic and dynamic Denon sound experience.

Advanced 8K HDMI video with eARC support
Three 8K inputs support the latest HDMI specifications—8K/60Hz, select 4K/120Hz pass-through, VRR, Dolby Vision™, HDR10+, and ALLM.

Full surround sound experience
Enjoy enveloping Dolby TrueHD or DTS-HD Master Audio 5.1 surround sound from Blu-ray, streaming services and TV.

Easy setup and operation
Once you connect your TV to the AVR-S660H, the Denon Setup Assistant walks you through the setup, step by step.

Wireless music streaming
Enjoy music services like Spotify®, Pandora®, Amazon Music HD, and more with HEOS® Built-in.

Enhanced gaming experiences
Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) care for amazing imaging and reduced latency.

Built-in Bluetooth, Wi-Fi
Dual-antenna transceiver for robust Bluetooth and Wi-Fi streaming even in congested environments.

Defining audio excellence
With a deep legacy of firsts and amazing sound, Denon is the defining audio company of Japan.

The HausΜusik company was founded in 2010. It has its headquarters in Marousi, Attica, at 40 Agiou Konstantinou str., in the historic Atrium shopping center.Our personal experience guarantees the ideal solution to the needs of customers in every case. In our 5 years of presence in the market, we have managed to build confidence and trust between our customers, which has been the catalyst for our growth.Our main goal remains to continue improve our services for our customers, to find the most ideal proposals and solutions in combination with your financial data and to maintain the friendly and warm environment that embraces you from the very first moment.


  • Multichannel SurroundDTS HD Master / DTS:XYes / No
    DTS Neo:X / DTS Neural:XNEO: 6 / No
    Dolby TrueHD / Dolby AtmosYes / No
    Dolby ProLogic II / Dolby SurroundYes / No
    Multichannel StereoYes
    Dialog EnhancerYes
    Max Number of Processing (Preamp) Channels5.1
    Sound Enhancements
    Discrete Power Amplifier5
    Audyssey Dynamic EQ / Dynamic VolumeYes / Yes
    Compressed Audio RestorerYes
  • NetworkHEOS Multiroom and StreamingYes
    Lossy Formats: MP3 / WMA / AACYes / Yes / Yes
    Lossless Formats: FLAC / ALAC / WAVYes / Yes / Yes
    DSD Audio Streamingup to DSD5.6
    FLAC HD 192/24Yes
    WAV 192/24Yes
    ALAC 192/24Yes
    Gapless playbackYes (FLAC, WAV, ALAC, DSD)
    AirPlay 2Yes
    Roon TestedYes
    Internet RadioTuneIn
    Spotify Connect* / Tidal* / Deezer* / others *Yes / Yes / Yes / Yes
    Amazon Prime Music* / Pandora*Yes / Yes
    Compatible with Remote APP for Smart PhonesAndroid / iOS
    Compatible with Remote APP for TabletsAndroid / iOS / Amazon Kindle
    Ethernet PortsYes
  • HDMIHDMI Inputs: Back / Front6 (3x 8K) / 0
    HDCP2.3 supportYes
    HDMI Outputs: Main / Zone1 / No
    HDMI max Resolution (8k / 4k)8k/60 – 4k/120
    HDMI to HDMI Scalingup to 8K 60/50
    HDMI: 8K / 4K / CEC / eARCYes / Yes / Yes / Yes
    HDMI: Dolby Vision / HDR 10+ / Dynamic HDR / HLGYes / Yes / Yes / Yes
    HDMI: ALLM / QMS / QFT / VRRYes / Yes / Yes / Yes
    HDMI pass-though in standby modeYes
    Multi-room CIHEOS Multiroom integratedYes
    TV Sound groupingYes
    Main room multichanel audio – Zone stereo downmixYes
    Zone Audio Source: HDMI / Opt, Coax / Network, USB / AnalogNo / No / No / No
    Zone Audio Output: Speaker / PreoutNo / No
    Webbrowser SetupYes
    IP Control / RS232 Control / Web Control / App ControlYes / No / Yes / Yes
    Remote In / OutNo / No
    OthersVoice Control – Works with Amazon AlexaYes
    Voice Control – Google Assist / Apple SiriYes / Yes
    Auto Speaker Setup by MicrophoneAudyssey MultEQ
    FL Display1 line
    Graphic User Interface – GUIHybrid GUI
    GUI Languages3
    Setup AssistantYes
    Quick Select Plus / Quick SelectYes / No
    Firmware Update by: Network / USBYes / Yes
    Variable Cross OverYes
    Optimized Bass RedirectionYes
    ECO ModeYes
    Auto Power OffYes
    Sleep TimerYes
    Inputs Outputs
    Composite In / Out2 / 1
    Component In / OutNo / No
    HDMI In / Out6 / 1
    Multi-room Video Out: Video / HDMINo / No
    Analogue In/out2 / No
    Phono (MM) InYes
    Digital In: Optical / Coaxial2 / 1
    Multi-room Out: Analog / DigitalNo / No
    Multichannel PreoutYes (0.2)
    Subwoofer Out2
    Speaker Terminal: Gold Plated Screw / Regular ScrewNo / Yes
    Number of Speaker Terminals5
    Front Inputs: Audio / Composite / Digital (Opt) / HDMI / USBNo / No / No / No / Yes
    USB Audio / Made for iPod / Made for iPhoneYes / AirPlay / AirPlay
    Tuner: FM / AMYes / Yes
    SpecificationsNumber of Power Amps5
    Power Output (8 ohm, 20 Hz – 20 kHz, 0.08% 2ch Drive)75W
    Power Output (6 ohm, 1 kHz, 0.7% 2ch Drive)100W
    Power Output (6 ohm, 1 kHz, 10% 1ch Drive)150W
    GeneralAvailable colors: Black / Premium SilverYes / No
    System Remote ControlRC-1243
    Pre-programmed / Learnable / LCD DisplayNo / No / No
    Power Consumption in W340
    Power Consumption No-Sound (ECO On / Off) in W29 W / 39 W
    Standby Consumption in W0.1
    CEC Standby Consumption in W0.5
    Network Control On Consumption in W2.0
    Maximum Dimensions w/ Antenna (W x D x H)434 x 339 x 215 mm
    Dimensions w/o Antenna (W x D x H)434 × 339 × 151 mm
    Weight in kg7.8
    Carton Maximum Dimensions (W x D x H) in mm523 x 435 x 232 mm
    Carton Weight (inc. product) in kg9.7



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Additional Information

Weight 10 kg
Dimensions 43.4 × 33.9 × 15.1 cm