Onkyo TX-SR3100 – 5.2-Channel AV Receiver with Dolby Atmos®, HDMI 2.1a, and AccuEQ

Immersive sound, stunning visuals, and easy setup — the accessible home cinema solution for everyone.

The TX-SR3100 is a 5.2-channel AV receiver designed to elevate your entertainment experience, whether you're watching movies, bingeing series, or gaming. Equipped with Dolby Atmos®, DTS:X®, and HDMI 2.1a (supporting up to 8K/60Hz and 4K/120Hz), it delivers immersive audio and crystal-clear video. The AccuEQ calibration system ensures optimal sound performance tailored to your space.

Main Features

• 5.2 channels with support for Dolby Atmos® and DTS:X®
• HDMI 2.1a with support for 8K/60Hz, 4K/120Hz, Dynamic HDR, Dolby Vision, and HDR10+
• 3D sound virtualization with Dolby Atmos Height Virtualizer
• AccuEQ for automatic room calibration and optimized playback
• Vocal Enhancer for clearer dialogue, even at low volume
• Music Optimizer DSP restores detail in compressed audio files (MP3, AAC, WMA)
• Wireless audio streaming via Bluetooth with automatic playback
• Compatible with Klipsch Reference and Premiere speakers via Klipsch Optimize Mode
• Ultra HD 8K for immersive viewing with sharper detail and vibrant color

Immersive Surround Sound

Dolby Atmos® and DTS:X® place sound in 3D space, with effects that move around you for a cinematic experience. Even without height speakers, the Height Virtualizer simulates overhead effects using your standard layout.

Next-Gen Video Ready

With HDMI 2.1a, the TX-SR3100 supports ultra-high resolutions and fast refresh rates. Enjoy smooth, sharp playback of fast-paced games and sports, with enhanced contrast and color via Dolby Vision and HDR10+.

Easy Setup and Optimized Audio

• AccuEQ measures distance, frequency response, and sound pressure level
• Automatic equalization ensures balanced sound in any room
• Music Optimizer rebuilds lost audio detail in compressed formats

Key Technical Specifications

• Channels: 5.2
• HDMI: 8K/60Hz, 4K/120Hz, eARC, HDR10+, Dolby Vision compatible
• Virtual Surround: Dolby Atmos Height Virtualizer
• Wireless Audio: Bluetooth with auto playback
• Calibration: AccuEQ with included microphone
• Speaker Compatibility: Klipsch Optimize Mode
• Audio Enhancements: Dolby Atmos, DTS:X, Music Optimizer, Vocal Enhancer

Included Accessories

• AccuEQ calibration microphone
• Indoor FM antenna and AM loop antenna
• Remote control + batteries
• Quick Start Guide