Onkyo TX-SR3100 vs Yamaha RX-V781
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Choosing between the Onkyo TX-SR3100 and Yamaha RX-V781? Both compete in the AVR / Receiver segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The Onkyo TX-SR3100 scores higher in value, gaming performance, form factor, room fit, ease of use. The Yamaha RX-V781 leads in audio quality, volume/SPL, future-proofing.
For audio processing, these receivers feature channel configurations of 5.2 vs 7.2 and different room correction systems (AccuEQ vs YPAO (Yes (R.S.C))). More channels enable immersive Atmos layouts. A 9-channel receiver can drive a 5.1.4 layout (5 ear-level, 1 sub, 4 height speakers) for overhead sound effects. Room correction compensates for acoustic problems caused by room dimensions, furniture, and surfaces. Dirac Live applies time-domain FIR correction across the full spectrum; MultEQ XT32 measures at 32,768 frequency points.
The Onkyo TX-SR3100 holds an advantage across more performance dimensions, but the Yamaha RX-V781 may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
For most home theaters, the Onkyo TX-SR3100 is the stronger choice — it leads in 5 of 8 scored dimensions. The Yamaha RX-V781 makes more sense if you prioritize the 3 dimensions where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Channel Count | 5.2 | 7.2 |
| Powered Channels | 5 | 7 |
| Max Processing Ch | 5.2 | 7.2 |
| Amplifier Class | — | — |
| Watts/Ch (8Ω) | 80W | 95W |
| Watts/Ch (6Ω) | — | — |
| Min Impedance | — | — |
| HDMI Inputs | 4 | 6 |
| HDMI Outputs | 1 | 2 |
| HDMI Version | 2.1 | 2.0a |
| 4K/120Hz | Yes | No |
| 8K/60Hz | Yes | No |
| eARC | Yes | Yes |
| ALLM | Yes | No |
| VRR | Yes | No |
| Dolby Vision | Yes | No |
| HDR10 | Yes | Yes |
| HDR10+ | Yes | No |
| HLG | Yes | Yes |
| Dolby Atmos | Yes | Yes |
| Atmos Height Virt. | No | No |
| Dolby TrueHD | No | Yes |
| DTS:X | Yes | Yes |
| DTS Virtual:X | No | No |
| DTS-HD Master | No | Yes |
| Auro-3D | No | No |
| Room Correction | AccuEQ | YPAO (Yes (R.S.C)) |
| Room Corr. Tier | BASIC | BASIC |
| Dirac Live | No | No |
| Dirac Bass Control | No | No |
| Wi-Fi | No | Yes |
| Bluetooth | Yes | Yes |
| BT Transmit | No | No |
| AirPlay 2 | No | Yes |
| Google Cast | No | No |
| Spotify Connect | No | No |
| Roon Tested | No | No |
| HEOS | No | No |
| MusicCast | No | Yes |
| DTS Play-Fi | Yes | No |
| BluOS | No | No |
| Ethernet | Yes | Yes |
| Alexa Built-in | No | No |
| Google Assistant | No | No |
| Siri/HomeKit | No | No |
| Works with Sonos | No | No |
| Wireless Rears | No | No |
| Zone 2 | No | Yes |
| Zone 3 | No | No |
| Zone 4 | No | No |
| Coax Digital In | 1 | 2 |
| Optical Digital In | 1 | 2 |
| Phono Input | No | Yes |
| USB Input | No | No |
| Sub Outputs | 2 | 2 |
| Pre-Out Channels | 5 | 7 |
| Headphone Out | No | Yes |
| XLR Input | No | No |
| Speaker Terminals | — | — |
| Remote App | Yes | Yes |
| AM/FM Tuner | — | — |
Key Differences
- Room Correction: Onkyo TX-SR3100 at AccuEQ vs Yamaha RX-V781 at YPAO (Yes (R.S.C)). Room correction compensates for acoustic problems caused by room dimensions, furniture, and surfaces. Dirac Live applies time-domain FIR correction across the full spectrum; MultEQ XT32 measures at 32,768 frequency points.
- HDMI Outputs: Onkyo TX-SR3100 at 1 vs Yamaha RX-V781 at 2
- Coax Digital In: Onkyo TX-SR3100 at 1 vs Yamaha RX-V781 at 2
- Optical Digital In: Onkyo TX-SR3100 at 1 vs Yamaha RX-V781 at 2
- HDMI Inputs: Onkyo TX-SR3100 at 4 vs Yamaha RX-V781 at 6
Which Should You Choose?
Choose Yamaha RX-V781 if you want:
- + 7.2 channel layout for more immersive Atmos configurations
- + better watts/ch (8ω) — real-world power matters for dynamic headroom
- + better hdmi inputs
See Where These Rank
Check our editorial rankings to see how Onkyo TX-SR3100 and Yamaha RX-V781 compare to the rest of the field.
Best AVR / Receiver RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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