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.
Multichannel Surround
DTS HD Master / DTS:X Yes / No
DTS Neo:X / DTS Neural:X NEO: 6 / No
Dolby TrueHD / Dolby Atmos Yes / No
Dolby ProLogic II / Dolby Surround Yes / No
Multichannel Stereo Yes
Dialog Enhancer Yes
Max Number of Processing (Preamp) Channels 5.1
Sound Enhancements
Discrete Power Amplifier 5
Audyssey MultEQ
Audyssey Dynamic EQ / Dynamic Volume Yes / Yes
Compressed Audio Restorer Yes
Network
HEOS Multiroom and Streaming Yes
Lossy Formats: MP3 / WMA / AAC Yes / Yes / Yes
Lossless Formats: FLAC / ALAC / WAV Yes / Yes / Yes
DSD Audio Streaming up to DSD5.6
FLAC HD 192/24 Yes
WAV 192/24 Yes
ALAC 192/24 Yes
Gapless playback Yes (FLAC, WAV, ALAC, DSD)
AirPlay 2 Yes
Roon Tested Yes
Internet Radio TuneIn
Spotify Connect* / Tidal* / Deezer* / others * Yes / Yes / Yes / Yes
Amazon Prime Music* / Pandora* Yes / Yes
Compatible with Remote APP for Smart Phones Android / iOS
Compatible with Remote APP for Tablets Android / iOS / Amazon Kindle
Ethernet Ports Yes
Wi-Fi Yes
Bluetooth Yes
Bluetooth Headphone transmission Yes
HDMI
HDMI Inputs: Back / Front 6 (3x 8K) / 0
HDCP2.3 support Yes
HDMI Outputs: Main / Zone 1 / No
HDMI max Resolution (8k / 4k) 8k/60 - 4k/120
HDMI to HDMI Scaling up to 8K 60/50
HDMI: 8K / 4K / CEC / eARC Yes / Yes / Yes / Yes
HDMI: Dolby Vision / HDR 10+ / Dynamic HDR / HLG Yes / Yes / Yes / Yes
HDMI: ALLM / QMS / QFT / VRR Yes / Yes / Yes / Yes
HDMI pass-though in standby mode Yes
Multi-room CI
HEOS Multiroom integrated Yes
TV Sound grouping Yes
Main room multichanel audio - Zone stereo downmix Yes
Zone Audio Source: HDMI / Opt, Coax / Network, USB / Analog No / No / No / No
Zone Audio Output: Speaker / Preout No / No
Webbrowser Setup Yes
IP Control / RS232 Control / Web Control / App Control Yes / No / Yes / Yes
Remote In / Out No / No
Others
Voice Control - Works with Amazon Alexa Yes
Voice Control - Google Assist / Apple Siri Yes / Yes
Auto Speaker Setup by Microphone Audyssey MultEQ
FL Display 1 line
Graphic User Interface - GUI Hybrid GUI
GUI Languages 3
Setup Assistant Yes
Quick Select Plus / Quick Select Yes / No
Firmware Update by: Network / USB Yes / Yes
Variable Cross Over Yes
Optimized Bass Redirection Yes
ECO Mode Yes
Auto Power Off Yes
Sleep Timer Yes
Inputs Outputs
Composite In / Out 2 / 1
Component In / Out No / No
HDMI In / Out 6 / 1
Multi-room Video Out: Video / HDMI No / No
Analogue In/out 2 / No
Phono (MM) In Yes
Digital In: Optical / Coaxial 2 / 1
Multi-room Out: Analog / Digital No / No
Multichannel Preout Yes (0.2)
Subwoofer Out 2
Speaker Terminal: Gold Plated Screw / Regular Screw No / Yes
Number of Speaker Terminals 5
Front Inputs: Audio / Composite / Digital (Opt) / HDMI / USB No / No / No / No / Yes
USB Audio / Made for iPod / Made for iPhone Yes / AirPlay / AirPlay
Tuner: FM / AM Yes / Yes
Specifications
Number of Power Amps 5
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
General
Available colors: Black / Premium Silver Yes / No
System Remote Control RC-1243
Pre-programmed / Learnable / LCD Display No / No / No
Power Consumption in W 340
Power Consumption No-Sound (ECO On / Off) in W 29 W / 39 W
Standby Consumption in W 0.1
CEC Standby Consumption in W 0.5
Network Control On Consumption in W 2.0
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 kg 7.8
Carton Maximum Dimensions (W x D x H) in mm 523 x 435 x 232 mm
Carton Weight (inc. product) in kg 9.7
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.
Multichannel Surround
DTS HD Master / DTS:X Yes / No
DTS Neo:X / DTS Neural:X NEO: 6 / No
Dolby TrueHD / Dolby Atmos Yes / No
Dolby ProLogic II / Dolby Surround Yes / No
Multichannel Stereo Yes
Dialog Enhancer Yes
Max Number of Processing (Preamp) Channels 5.1
Sound Enhancements
Discrete Power Amplifier 5
Audyssey MultEQ
Audyssey Dynamic EQ / Dynamic Volume Yes / Yes
Compressed Audio Restorer Yes
Network
HEOS Multiroom and Streaming Yes
Lossy Formats: MP3 / WMA / AAC Yes / Yes / Yes
Lossless Formats: FLAC / ALAC / WAV Yes / Yes / Yes
DSD Audio Streaming up to DSD5.6
FLAC HD 192/24 Yes
WAV 192/24 Yes
ALAC 192/24 Yes
Gapless playback Yes (FLAC, WAV, ALAC, DSD)
AirPlay 2 Yes
Roon Tested Yes
Internet Radio TuneIn
Spotify Connect* / Tidal* / Deezer* / others * Yes / Yes / Yes / Yes
Amazon Prime Music* / Pandora* Yes / Yes
Compatible with Remote APP for Smart Phones Android / iOS
Compatible with Remote APP for Tablets Android / iOS / Amazon Kindle
Ethernet Ports Yes
Wi-Fi Yes
Bluetooth Yes
Bluetooth Headphone transmission Yes
HDMI
HDMI Inputs: Back / Front 6 (3x 8K) / 0
HDCP2.3 support Yes
HDMI Outputs: Main / Zone 1 / No
HDMI max Resolution (8k / 4k) 8k/60 - 4k/120
HDMI to HDMI Scaling up to 8K 60/50
HDMI: 8K / 4K / CEC / eARC Yes / Yes / Yes / Yes
HDMI: Dolby Vision / HDR 10+ / Dynamic HDR / HLG Yes / Yes / Yes / Yes
HDMI: ALLM / QMS / QFT / VRR Yes / Yes / Yes / Yes
HDMI pass-though in standby mode Yes
Multi-room CI
HEOS Multiroom integrated Yes
TV Sound grouping Yes
Main room multichanel audio - Zone stereo downmix Yes
Zone Audio Source: HDMI / Opt, Coax / Network, USB / Analog No / No / No / No
Zone Audio Output: Speaker / Preout No / No
Webbrowser Setup Yes
IP Control / RS232 Control / Web Control / App Control Yes / No / Yes / Yes
Remote In / Out No / No
Others
Voice Control - Works with Amazon Alexa Yes
Voice Control - Google Assist / Apple Siri Yes / Yes
Auto Speaker Setup by Microphone Audyssey MultEQ
FL Display 1 line
Graphic User Interface - GUI Hybrid GUI
GUI Languages 3
Setup Assistant Yes
Quick Select Plus / Quick Select Yes / No
Firmware Update by: Network / USB Yes / Yes
Variable Cross Over Yes
Optimized Bass Redirection Yes
ECO Mode Yes
Auto Power Off Yes
Sleep Timer Yes
Inputs Outputs
Composite In / Out 2 / 1
Component In / Out No / No
HDMI In / Out 6 / 1
Multi-room Video Out: Video / HDMI No / No
Analogue In/out 2 / No
Phono (MM) In Yes
Digital In: Optical / Coaxial 2 / 1
Multi-room Out: Analog / Digital No / No
Multichannel Preout Yes (0.2)
Subwoofer Out 2
Speaker Terminal: Gold Plated Screw / Regular Screw No / Yes
Number of Speaker Terminals 5
Front Inputs: Audio / Composite / Digital (Opt) / HDMI / USB No / No / No / No / Yes
USB Audio / Made for iPod / Made for iPhone Yes / AirPlay / AirPlay
Tuner: FM / AM Yes / Yes
Specifications
Number of Power Amps 5
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
General
Available colors: Black / Premium Silver Yes / No
System Remote Control RC-1243
Pre-programmed / Learnable / LCD Display No / No / No
Power Consumption in W 340
Power Consumption No-Sound (ECO On / Off) in W 29 W / 39 W
Standby Consumption in W 0.1
CEC Standby Consumption in W 0.5
Network Control On Consumption in W 2.0
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 kg 7.8
Carton Maximum Dimensions (W x D x H) in mm 523 x 435 x 232 mm
Carton Weight (inc. product) in kg 9.7