Denon AVC-S660H – 5.2-Channel 8K AV Receiver with HEOS

The Denon AVC-S660H brings next-level home theatre power to your system. With discrete high-current amplification, support for immersive audio formats, full 8K HDMI resources, and HEOS streaming built-in, it delivers cinematic performance and flexible connectivity.

Key Features

• 5.2-channel discrete Class AB amplifier: Rated at 75 W per channel (8 Ω, 20 Hz–20 kHz, 0.08% THD), with peak power up to 100 W at 6 Ω
• 8K Ultra-HD HDMI: Six inputs (three supporting 8K/60 Hz and 4K/120 Hz) plus one output; HDR10+, Dolby Vision, HLG, eARC, VRR, ALLM, and Quick Frame Transport support
• Immersive surround formats: Decodes Dolby TrueHD, DTS-HD, Dolby Atmos (up to 5.1.2), DTS:X, plus upmixers like Dolby Surround and DTS Neo:6; includes Dialog Enhancer
• HEOS multi-room streaming: Stream via Wi-Fi, Bluetooth, AirPlay 2, Spotify, Tidal, and more; compatible with HEOS speakers and Roon
• Audyssey MultEQ auto calibration: Optimizes speaker and room acoustics; includes Dynamic EQ and Dynamic Volume

Customer Benefits

Create a powerful, modern home theatre that’s easy to set up and future-proof. The AVC-S660H offers nuanced surround sound, game-ready video processing, multi-room music, and voice control.

Quick Specs

• Power output: 75 W per channel (8 Ω), 100 W (6 Ω)
• Channels: 5.2, with 5 dedicated amps
• HDMI I/O: 6 inputs, 1 output (eARC)
• Supported video: 8K/60 Hz, 4K/120 Hz, HDR10+, Dolby Vision, HLG, VRR, ALLM
• Surround: Dolby Atmos, DTS:X, Dolby TrueHD, DTS-HD, upmixers
• Streaming & network: HEOS, AirPlay 2, Bluetooth, Wi-Fi, Ethernet, Roon Ready
• Room EQ: Audyssey MultEQ, Dynamic EQ, Dynamic Volume
• Dimensions (W × D × H): 43.4 × 33.9 × 15.1 cm
• Weight: 7.8 kg

What’s in the Box

• Denon AVC-S660H AV receiver
• Remote control (with batteries)
• Power cord
• Audyssey calibration microphone
• Quick Start Guide and documentation

Use Cases / Ideal For

Perfect for gamers, cinephiles, and smart home users building a rich surround sound setup with future-focused video inputs. Ideal for apartments or mid-sized living rooms seeking immersive audio without complexity.

Compatibility

Connects to passive speakers (4–16 Ω), multiple HDMI sources, smart TVs via eARC, and HEOS or Bluetooth devices. Integrates with Alexa, Google Assistant, and Siri for voice control within your streaming ecosystem.

Pros & Cons

✅ Pros:

• Future-proof 8K HDMI and powerful surround support
• Clean, dynamic amplification with flexible multimedia streaming
• Effortless room correction and voice integration

⚠️ Cons:

• Lacks HDMI 2.1 features like 120 fps passthrough on all inputs
• No Dirac tuning included—requires Audyssey or upgrade

The Denon AVC-S660H blends immersive audio, top-tier video support, and smart streaming into a stylish receiver that grows with your entertainment setup.