Onkyo TX-SR3100 80W 5.2-Ch. AV Receiver
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Our take on the Onkyo TX-SR3100 80W 5.2-Ch. AV Receiver
The Onkyo TX-SR3100 is a 5.2-channel AV receiver rated at 80W per channel, built for a basic surround setup in a small to medium room. It covers the essentials: HDMI switching with 8K passthrough on its main inputs, Dolby Vision and HDR10+ support, and room calibration to set speaker levels and distances. It sits below Onkyo's TX-NR series, so it skips network streaming, multi-zone audio and the higher power of those models. It suits a first surround system or a bedroom and secondary-room build where a TV, a console and five speakers are the whole job.
- 5.2 channels with two subwoofer outputs
- 8K passthrough and HDR10+ on the main HDMI inputs
- Dolby Vision and Dolby Atmos decoding
- Automatic speaker calibration included
- Straightforward setup for a basic 5.1 layout
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About the Onkyo TX-SR3100 80W 5.2-Ch. AV Receiver
A 5.2-channel AV receiver delivering 80W total power for immersive home audio.
Questions and answers
- Does the TX-SR3100 support Dolby Atmos?
- Yes. It decodes Dolby Atmos and DTS:X on a 5.2 layout, so height effects come from either up-firing speakers or a 5.1.2 arrangement within its five channels.
- Can it pass through 8K video?
- Yes, its main HDMI inputs support 8K passthrough, along with HDR10+ and Dolby Vision, so a current console or 8K player can run through the receiver to the TV.
- Does it have Bluetooth or Wi-Fi streaming?
- It has Bluetooth for phone playback but no Wi-Fi, no built-in music services and no app-based control. Streaming is done from the source device over Bluetooth or HDMI.
- How many speakers can it drive?
- Five speakers plus two subwoofers. That covers a 5.1 or 5.2 setup, or a 5.1.2 Atmos layout using two of the channels for height.
- Is 80W enough for a medium room?
- For most medium rooms with reasonably sensitive speakers, yes. Very large rooms or low-sensitivity speakers will want a step-up model with more power per channel.
- Does it come with a calibration microphone?
- Yes, an setup microphone is included for the automatic speaker calibration, which sets levels and distances for the room.
