Is this the s660h or the s650h? the title says 660, but then it days "style: avr-s650h". they're different products, so which is it?

They may have just reused the copy in the ad from the 2020 version (AVR-S650H) in making the ad for the 660 and just changing the specs without catching the 650 in the text description.

What is total power output

-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

Can I use 8k inputs for non-8k or even 4k devices?

Yes. The spec is just the maximum allowed at the input

Does it fit Bose Acoustimass 15?

Thanks for your question. AVR-S660H is compatible with Bose Acoustimass 15. World Wide Stereo – since 1979 – and a proud authorized Denon dealer.

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AVR-S670H 5.2 Ch Home Theater Receiver, 8K UHD HDMI Receiver (75W x 5), Streaming via Built-in HEOS Bluetooth & Wi-Fi, Dolby TrueHD, Dolby Pro Logic II DTS HD Surround Sound System for TV

Product ID: 546621879

Details

Audio Encoding
Surround
Audio Output Mode
Surround
Brand
Denon
Compatible Devices
Speaker
Connectivity Technology
Bluetooth
Connector Type
HDMI

📡Built-in HEOS Wi-Fi & Bluetooth streaming

📺8K/60Hz & 4K/120Hz pass-through

🔊75W x 5 channels power output

966152CFA

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Description

🎬 Elevate your home theater game with 8K clarity and immersive sound — don’t just watch, experience!

GAME READY TECH SUITE - Enjoy lag-free gaming with VRR, ALLM, and QFT support, ensuring smooth visuals and responsive audio.
CINEMATIC 8 K BRILLIANCE - Experience ultra-high-definition 8K video with seamless 4K upscaling for next-level home theater immersion.
HANDS FREE VOICE CONTROL - Control your entertainment with Alexa and other voice assistants — no remote needed, just pure convenience.
MULTI ROOM MUSIC MASTERY - Stream your favorite playlists effortlessly via HEOS, Wi-Fi, or Bluetooth — connect every room with premium audio.
POWERFUL 5 CHANNEL AMPLIFICATION - 75 watts per channel delivers crystal-clear, room-filling surround sound that commands attention.

The Denon AVR-S670H is a 5.2 channel home theater receiver delivering 75W per channel with advanced 8K/60Hz and 4K/120Hz video pass-through. It supports premium audio formats like Dolby TrueHD and DTS HD, and features built-in HEOS Wi-Fi and Bluetooth for multi-room streaming. With HDMI ARC/eARC, VRR, ALLM, and voice control compatibility, it’s designed for seamless integration into modern smart homes and gaming setups.

Specifications

ASIN	B0CCQM6BNG
Audio Encoding	Surround
Audio Output Mode	Surround
Audio Output Type	Speakers
Best Sellers Rank	#4,749 in Electronics ( See Top 100 in Electronics ) #6 in Audio Component Receivers
Brand	Denon
Built-In Media	AM/FM Antennas, Audyssey microphone and stand, Documentation and wire labels, Main unit, Remote control and batteries
Color	Black
Compatible Devices	Speaker
Connectivity Technology	Bluetooth
Connector Type	HDMI
Control Method	Voice
Controller Type	Amazon Alexa
Customer Reviews	4.4 4.4 out of 5 stars (226)
External Testing Certification	Não aplicável
Format	WAV
Global Trade Identification Number	00747192140175
Item Dimensions D x W x H	13.3"D x 17.1"W x 6"H
Item Weight	20.7 Pounds
Manufacturer	Denon
Mfr Part Number	AVRS670H
Model Number	AVRS670H
Number of Channels	5
Other Special Features of the Product	Spotify
Output Power	75 Watts
Output Wattage	75 Watts
Smart Home Compatibility	Smart Home Compatible
Supported Internet Services	Pandora, Spotify, TIDAL
Surround Sound Channel Configuration	5.2 Channel
Total Number of HDMI Ports	8
UPC	747192140175
Unit Count	1.0 Count
Video Encoding	H.265/HEVC
Warranty Description	2 years
Wattage	75 watts
Wireless Technology	Bluetooth

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