Denon AVR-S660H vs Yamaha RX-A6A

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Let's make the Denon AVR-S660H versus Yamaha RX-A6A comparison. According to the results of our review, Denon AVR-S660H received 6.7 points out of 10 possible, and Yamaha RX-A6A was rated 9.3 points. Both AV receivers were introduced in 2021. After comparison, it will become clear that among these two devices, the RX-A6A is more suitable for the role of the heart of home theater system.

Main advantages Denon AVR-S660H over Yamaha RX-A6A

Main advantages Yamaha RX-A6A over Denon AVR-S660H

Amplifiers

For the built-in amplifier, the devices received different marks - 6 and 9, respectively, on a 10-point scale.

The number of channels is equal to the number of possible connected speakers. The Denon AVR-S660H supports 5.2-channels sound, but Yamaha RX-A6A supports a 9.2-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 RX-A6A this value is 150/8 W/Ohm, and for the AVR-S660H it is 75/8 W/Ohm.

Audio features

After reviewing the audio features of each model, we can rate the AVR-S660H 6 out of 10, and the RX-A6A - 9.

Bi-amping is the amplification of one speaker with two amplifiers. This amplification method has a positive effect on sound quality. Bi-amping is possible on the RX-A6A.

Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Yamaha RX-A6A 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.

Connectivity

The connectivity of competitors in our comparison is markedly different, Denon AVR-S660H scored 7, and Yamaha RX-A6A scored 9 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-S660H got 7 points, but Yamaha RX-A6A received 10 points.

Denon AVR-S660H is equipped with 6/1 HDMI inputs and outputs, and Yamaha RX-A6A has 7/3 HDMI inputs and outputs.

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-S660H were rated 8 out of 10 against the 9 for the RX-A6A.

Additional features

In terms of evaluating additional features, both receivers received a score of 10 out of 10.

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

For the ability to create multichannel surround sound, each of the receivers received 8 points out of 10.

Dolby Atmos' particularity is that this is the object-oriented sound format, that is, each audio signal object is independently sounded and connected to its spatial position. Yamaha RX-A6A can create 3D sound due to the Dolby Atmos support.

DTS:X is an algorithm used by the processor to create sound scenes, where sounds connected directly to objects rather than channels, and to determine the optimum sound output distribution in space. Surround sound with DTS:X is available on the RX-A6A.

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. Yamaha RX-A6A has Auro-3D on its feature list.