The catch
Yamaha RX-A6A
Every HDMI source plugs in at the rear. A temporary source needs access to the back or a suitable tested extension.
Side by side
Seven permanently connected high-refresh sources, or separately configurable sub outputs, point to A6A. A6A has seven rear 40 Gbps HDMI inputs. Included full-bandwidth Dirac and an accessible front HDMI connection for supported guest devices point to RZ50. Its front input is limited to 9 Gbps and does not feed HDMI Zone 2. Both need a stereo power amp for 7.1.4.
Before you buy
On A6A, all seven HDMI inputs are at the rear and capable of 40 Gbps. The seventh input on RZ50 is front AUX, which has a lower bandwidth limit. If every player should stay connected and some use high-refresh formats, Yamaha gives you a more uniform source map. If six rear connections are enough and visitors bring a compatible camera, the front socket on Onkyo can save you from reaching through permanent cables. Which device turns up now and then decides the right layout. The headline total of seven does not.
Where this comes from
Where the input is and how much bandwidth it has, matched against permanent and temporary use. The exact source, cable, firmware and display format still have to line up.
The catch
Every HDMI source plugs in at the rear. A temporary source needs access to the back or a suitable tested extension.
The catch
The front input is slower, and it is left out of HDMI Zone 2. The two sub sockets share a signal and a setup entry.


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Yamaha A6A vs Onkyo RZ50 for a full gaming cabinet, visiting laptops and a 7.1.4 upgrade done in stages, comparing port placement, sub settings and extra amp needs.
With external amplification, either nine-amplifier receiver can support an eleven-speaker system later. The more useful dividing line is capacity for permanent sources against easy temporary access.
Which one fits
All seven A6A inputs are 40 Gbps connections at the rear.
RZ50 offers front AUX, which has a lower format ceiling.
The two outputs on RZ50 share a signal and a receiver setup entry.
Each requires two channels powered externally.
In practice
On A6A, all seven HDMI inputs are at the rear and capable of 40 Gbps. The seventh input on RZ50 is front AUX, which has a lower bandwidth limit. If every player should stay connected and some use high-refresh formats, Yamaha gives you a more uniform source map. If six rear connections are enough and visitors bring a compatible camera, the front socket on Onkyo can save you from reaching through permanent cables. Which device turns up now and then decides the right layout. The headline total of seven does not.
Where the input is and how much bandwidth it has, matched against permanent and temporary use. The exact source, cable, firmware and display format still have to line up.
When two powered subs sit in different parts of the room, their level and distance settings in the receiver may need to be different. A6A offers separate subwoofer configuration. RZ50 sends the same signal through both sockets and has one receiver subwoofer setup entry. External processing or controls on the subs may change what makes sense in practice, but a second RCA socket by itself adds no independent receiver adjustment. This difference doesn’t establish smoother bass.
Verified sub signal and setup controls, matched against subs in different physical positions. Whether external processing helps and what the acoustic result is remain separate questions.
The front AUX on Onkyo works well for family videos on the main screen, but it can’t feed HDMI Zone 2. At 4K60 it also calls for 8-bit YCbCr 4:2:0, so an ordinary laptop RGB output may need a different setting or a rear input. On A6A, a rear connection can be brought to the front with a suitable tested extension, though that’s another cable to verify. Work out where the visitor’s picture has to show up before you treat front access as the deciding benefit.
The exact front format and the zone exclusion, matched against guests’ devices. No unrestricted alternate Yamaha zone route is claimed.
Check a documented speaker layout against HDMI sources and external-amplifier plans.
Handles your setup
Runs 5.1.2 on its own built-in amplifiers. Takes 3 HDMI devices, 1 of them at 4K/120Hz.
Handles your setup
Runs 5.1.2 on its own built-in amplifiers. Takes 3 HDMI devices, 1 of them at 4K/120Hz. Input count does not guarantee every chroma, bit-depth or DSC combination. Check the manufacturer's HDMI format table and current firmware.
A powered subwoofer does not count toward the speaker channels. This checks one main room. Check Zone 2, bi-amping and unusual speaker assignments yourself. Leave room for ventilation, and confirm HDMI settings, cables and speaker impedance before you install.

Yamaha, US black standalone receiver
Seven compatible high-refresh players have to stay connected at the rear of the receiver.

Onkyo, TX-RZ50
The permanent rear sources already fit, and a suitable visiting camera or laptop needs front access.
Spec by spec
| Spec | Yamaha RX-A6A | Onkyo TX-RZ50 | In practice |
|---|---|---|---|
| 7.1.4 power | External stereo amp required | External stereo amp required | Whichever you choose, budget for the whole eleven-speaker system. |
| Seventh HDMI source | Rear 40 Gbps input | Front 9 Gbps AUX | Placement and signal limits differ for the seventh socket. |
| Two subs | Separate subwoofer configuration | Two sockets with a shared signal and one setup entry | Separate placement can call for receiver settings of their own. |
| Included calibration | YPAO multipoint | Dirac Live Full Bandwidth | Favoring one workflow says nothing about a winner in measured acoustics. |
Trade-offs
Change of plan
Go with Yamaha RX-A6A. Seven uniform rear inputs and separate sub configuration come with A6A.
Go with Onkyo TX-RZ50. Front AUX on RZ50 leaves the rear cables undisturbed.
Decision guide
Keeping a permanent setup tidy is hard when visiting devices keep needing a cable.
By the numbers
What we found across the AV receivers we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Yamaha RX-A6A |
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| Onkyo TX-RZ50 |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Seven compatible high-refresh players have to stay connected at the rear of the receiver.
Two powered subs need separate receiver setup. One shared sub setting will not do.
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The permanent rear sources already fit, and a suitable visiting camera or laptop needs front access.
Included Dirac room correction is what you want, and you have room for an external amp for eleven speakers.
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