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Onkyo TX-NR6100 vs Yamaha RX-V6A
Opposite rating philosophies at a similar price — which should you buy?
Two mid-range 7.2 receivers, $899.99 vs $645.99 tracked — and two nearly opposite ways of writing a power spec. This pair is the cleanest illustration of why we store measurement context with every value.
Reading the numbers honestly
Onkyo rates the TX-NR6100 at 165W — into 6Ω, ONE channel driven, at 1% THD, with no 8Ω figure published at all. Yamaha rates the RX-V6A at 100W — into 8Ω, two channels driven, at 0.06% THD, the strict way. As printed, 165 vs 100 is meaningless; corrected for conditions these are similar amplifiers, and if anything the Yamaha's number is the more trustworthy one.
Specifications · side by side · per-field provenance● SOURCE-TRACKED
| Spec | Onkyo TX-NR6100 | Yamaha RX-V6A |
|---|
| Price | $900 | $646 |
| Brand | Onkyo | Yamaha |
| Channel Config | 7.2 | 7.2 |
| Main Channels | 7 | 7 |
| Sub Pre Outs | 2 | 2 |
| Height Channels | 2 | not stated |
| Zone2 Capable | Yes | Yes |
| Watts Per Channel 6ohm | 165 | not stated |
| THD Percent | 1 | 0.06 |
| Power Measurement Channels Driven | one channel driven | two channels driven |
| Impedance Range | 4-16 Ω | not stated |
| Dolby Atmos | Yes | Yes |
| Dts X | Yes | Yes |
| Auro 3d | No | not stated |
| Room Correction System | AccuEQ | YPAO |
| Measurement Mic Included | Yes | not stated |
| HDMI Inputs | 6 | 7 |
| HDMI Outputs | 2 | 1 |
| HDMI Version | 2.1 | not stated |
| HDMI 21 Port Count | 3 | not stated |
| HDMI Earc Port Count | 1 | not stated |
| Max Passthrough Resolution | 8K 60 | 8K 60 |
| HDR Support | HDR10+, Dolby Vision | HDR10, Dolby Vision, HLG |
| VRR Passthrough | Yes | Yes |
| ALLM Support | Yes | Yes |
| Phono Input | Yes | Yes |
| Wifi | Yes | Yes |
| Bluetooth | Yes | Yes |
| Airplay2 | Yes | Yes |
| Streaming Services | Amazon Music HD, Spotify Connect, Tidal Connect, Deezer, TuneIn, DTS Play-Fi | not stated |
| Form Factor | full size | not stated |
| Width Inches | 17.1 | 17.1 |
| Height Inches | 6.8 | 6.8 |
| Depth Inches | 14.9 | 14.9 |
| Weight Lbs | 21.6 | 21.6 |
| Power Consumption W | 65 | not stated |
| Watts Per Channel 8ohm | not stated | 100 |
| HDMI Max Bandwidth Gbps | not stated | 24 |
| Musiccast | not stated | Yes |
| Trigger Outputs Count | not stated | 1 |
Shaded rows differ · green dot = lab-measured · amber = manufacturer-verified · blue = retailer/community-reported · grey = estimated · “not stated” means exactly that
Compatibility · computed, not written
Checked against a bookshelf that dips to a stated 3.7Ω like the KEF Q150: KEF Q150
Onkyo TX-NR6100 states a 4Ω-minimum rating; the KEF Q150 dips to a stated 3.7Ω minimum, a little below that floor. Most receivers handle a marginal dip at normal volumes — it's worth watching only at very high output on an entry-level unit.
Yamaha RX-V6A publishes no rated impedance range, so the pairing with the KEF Q150 (which dips to a stated 3.7Ω minimum) can't be verified from its spec sheet — we treat that as "can't check", not a pass.
Computed from the catalog's normalized fields — the same fields the builder's compatibility engine reads. A missing field reads as "can't check", never as a pass.
Check either one against your own build →The verdict
Buy the Yamaha RX-V6A for most systems — it's $254 cheaper as tracked and its power rating is the honest one. Buy the Onkyo TX-NR6100 if you need its stated 4–16Ω impedance rating or its stated HDMI 2.1 port count.
ValueYamaha RX-V6A — $645.99 vs $899.99 for the same class of receiver once the power stickers are normalized.
4Ω-dipping speakersOnkyo TX-NR6100 — The Onkyo states 4–16Ω; the Yamaha publishes no impedance range.
GamingOnkyo TX-NR6100 — 3 stated HDMI 2.1 ports; the Yamaha's HDMI 2.1 port count is unstated in our data.
What our normalized data addsNOT ON THE SPEC SHEETS
- Near-opposite rating philosophies made explicit: Onkyo 165W at 6Ω/1ch/1% THD (no 8Ω figure published) vs Yamaha 100W at 8Ω/2ch/0.06% THD — our normalized context fields are what make the stickers comparable at all.
- The Onkyo states a 4–16Ω impedance range; the Yamaha states none.
- Tracked prices $899.99 vs $645.99 — the receiver with the generous sticker is also the more expensive one.
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