Onkyo TX-NR5100 7.2-Channel 8K Smart AV Receiver
- 7.2 channel with 4 HDMI ports, HDMI 2.1 supports 4K at 120Hz
- Variable Refresh Rate and Auto Low Latency Mode, for smoother gaming
- Decodes Dolby Atmos, DTS:X, DTS-HD MA and Dolby TrueHD, via eARC
- Chromecast built-in, AirPlay 2 and DTS Play-Fi, for wireless streaming
- 2 year parts and labor warranty
- 12.9 x 17.13 x 6.3 inches, 8.4 kg
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Recommend this Onkyo receiver for a gaming-focused living room setup needing low-latency HDMI passthrough and object-based surround decoding. The limitation is a modest number of HDMI inputs for a setup with several connected devices.
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ASIN: B099X8SGJ5Model: TX-NR5100Category: AV Receivers
Overview
Not simply a basic surround processor, this Onkyo receiver adds fast-response gaming features like variable refresh rate and auto low latency mode alongside standard object-based surround decoding. It streams music through Chromecast, AirPlay and DTS Play-Fi and passes audio back from the television's own apps over the enhanced return channel.
Fast-response gaming support such as variable refresh rate and auto low latency mode gives this receiver an edge for console use. The HDMI input count stays modest, which can matter for a setup with many connected devices. Wireless streaming spans several casting standards, covering most household devices without extra hardware.
Who it's for
A household focused on console gaming and streaming apps benefits from the low-latency HDMI features and wide surround format support here. Someone connecting many source devices at once should confirm the HDMI input count fits their setup before buying.
Pros and cons
- Decodes multiple object-based surround formats via eARC
- Adds low-latency features for modern game consoles
- Streams through several wireless casting standards
- Carries two year parts and labor coverage
- Klipsch Optimize Mode benefits only Klipsch speakers
- HDMI input count is modest for larger setups
Performance notes
Gaming signals pass through the receiver's HDMI stage with added processing for variable refresh rate and reduced latency, so the improvement depends on a source and display that support the same features. Object-based surround formats decode from an enhanced audio return channel carried over the same HDMI connection as the television. Wireless streaming routes through whichever casting standard the source device uses, rather than one universal protocol.
Specifications
| Brand | Onkyo |
|---|---|
| Model | TX-NR5100 |
| Dimensions & fit | |
| Weight | 8.4 poundslower than 71% of 43 av receivers |
| Dimensions | 12.9 × 17.1 × 6.3 inches |
| Dimensions | 12.9 x 17.13 x 6.3 in |
| Power & efficiency | |
| Power | 80 wattslower than 74% of 40 av receivers |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | Bluetooth |
| Other details | |
| Hdmi Ports | 4 |
| Brand Tech | Onkyo |
Closest rivals on specs
Marantz NR1510 Slimline 5.2 Channel AV Receiver- Power 80 vs 50 watts (+60%)
Yamaha R-N600ASL AV Receiver- Weight 8.4 vs 12 pounds (-30%)
Rockville Home Matrix 4-Zone 8-Channel Amplifier- Weight 8.4 vs 12.38 pounds (-32%)
Frequently asked questions
What comes packaged with the Onkyo TX-NR5100?
The receiver ships with its remote control and setup materials for connecting HDMI, network and speaker cables; speakers, a television and an antenna are not included.
Does the Klipsch Optimize Mode work with any speaker brand?
It is tuned specifically for Klipsch speakers, so connecting other brands still works but without that mode's specific tuning benefit.
Can I use the enhanced audio return channel with any television?
The television needs its own compatible enhanced return channel input to send high-bitrate audio formats back to the receiver; older televisions without it will need a standard optical or HDMI audio connection instead.
Will this receiver reduce input lag for competitive gaming?
Its low-latency gaming features are designed to minimize added delay between a console and the display, though total lag also depends on the television's own processing.