Denon AVR-X6400H vs Onkyo TX-NR777

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Being able to compare Denon AVR-X6400H and Onkyo TX-NR777 gave us an insight into what of them would be better for home theater configuration. According to the results of our review, Denon AVR-X6400H received 9.4 points out of 10 possible, and Onkyo TX-NR777 was rated 6.8 points. Both AV receivers were introduced in 2017. AVR-X6400H is more performable in terms of audio broadcast than the TX-NR777.

Main advantages Denon AVR-X6400H over Onkyo TX-NR777

Main advantages Onkyo TX-NR777 over Denon AVR-X6400H

Amplifiers

For the built-in amplifier, the devices received different marks - 10 and 7, respectively, on a 10-point scale.

The number of channels is equal to the number of possible connected speakers. The Denon AVR-X6400H supports 11.2-channels sound, but Onkyo TX-NR777 supports a 7.2-channels configuration.

RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. The differences between the models in terms of RMS power are significant - for the AVR-X6400H this value is 140/8 W/Ohm, and for the TX-NR777 it is 110/8 W/Ohm.

Audio features

After reviewing the audio features of each model, we can rate the AVR-X6400H 10 out of 10, and the TX-NR777 - 7.

Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Denon AVR-X6400H has Pure Direct mode.

Most receivers now come with a microphone included. It is with the help of this microphone that the auto-calibration system functions, which adjusts the sound of the receiver to the room.

Speaker A/B switching allows you to change between the main and sub speaker set. Denon AVR-X6400H can work with the main and additional set of speakers - and switch between them.

Connectivity

The connectivity of competitors in our comparison is equal and was rated 8 out of 10.

Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting.

Streaming services

Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.

Extensive connections

The presence of many connectors makes the receiver more versatile. But there are also narrowly targeted models, the number of connectors which are limited to a certain area of use. And when choosing their own receiver, users need to consider exactly your goals for using the receiver. For extensive connection, Denon AVR-X6400H got 10 points, but Onkyo TX-NR777 received 7 points.

Denon AVR-X6400H is equipped with 8/3 HDMI inputs and outputs, and Onkyo TX-NR777 has 7/2 HDMI inputs and outputs.

HDMI eARC is the next step in the development of audio return channel technology, which works in conjunction with HDMI 2.1. Using eARC provides the highest sound quality for home audio systems. HDMI eARC is available only on Denon AVR-X6400H.

Video features

The AV receiver is the heart of the home theater. And in this case, support for all current video formats ensures the best user experience, so it is very important to consider this when choosing a device. Video features of the AVR-X6400H were rated 9 out of 10 against the 6 for the TX-NR777.

Most of the AV receivers have a video scaling function, it is the process of reformatting the video signal to a higher resolution without losing the quality of the image. Upscaling the video signal resolution is possible only with Denon AVR-X6400H.

Additional features

In terms of evaluating additional features, the AVR-X6400H got 10 points, but the TX-NR777 has 6.

Voice control allows you to control the basic functions of the receiver through a smartphone, smart speaker or using the microphone that comes with the kit. The AVR-X6400H can be controlled by voice via Amazon Alexa, Google Assistant, Siri, Josh.AI. Only the Denon AVR-X6400H has the ECO mode.

Multi-room

As the center of a home media system, each multichannel receiver has an additional set of terminals for connecting the second set of speakers to create additional audio space in Zone 2 or even Zone 3 where audio can have the separate source.

Multichannel surround

Denon AVR-X6400H got 9 points for the multichannel surround sound and Onkyo TX-NR777 got 7.

Auro 3D gives a bit more versatility than Dolby Atmos or DTS:X and provides a hemispherical sound and enables a receiver to produce 3D sound stages. Only the Denon AVR-X6400H has Auro-3D on its feature list.