Onkyo TX-SR383 vs Onkyo TX-RZ620

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Let's make the Onkyo TX-SR383 versus Onkyo TX-RZ620 comparison. According to the results of our review, Onkyo TX-SR383 received 4.8 points out of 10 possible, and Onkyo TX-RZ620 was rated 7.1 points. The release date of TX-SR383 is 2018, and TX-RZ620 is 2017. After comparison, it will become clear that among these two devices, the TX-RZ620 is more suitable for the role of the heart of home theater system.

Main advantages Onkyo TX-SR383 over Onkyo TX-RZ620

Main advantages Onkyo TX-RZ620 over Onkyo TX-SR383

Amplifiers

For the built-in amplifier, the models have rated 7 points out of 10.

The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 7.2-channels configuration.

RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. In terms of RMS power, the models have the same characteristics - 100/8, 135/6/8 W/Ohm.

Audio features

After reviewing the audio features of each model, we can rate the TX-SR383 6 out of 10, and the TX-RZ620 - 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 TX-RZ620.

Pure Direct mode feeds sound directly to the amplifier and bypasses any DSP processing. Only Onkyo TX-RZ620 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, Onkyo TX-SR383 scored 6, and Onkyo TX-RZ620 scored 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, Onkyo TX-SR383 got 6 points, but Onkyo TX-RZ620 received 7 points.

Onkyo TX-SR383 is equipped with 4/1 HDMI inputs and outputs, and Onkyo TX-RZ620 has 7/2 HDMI inputs and outputs.

Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the TX-RZ620 has a Phono interface.

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 rivals in our comparison were rated 6 out of 10.

Additional features

In terms of evaluating additional features, the TX-SR383 got 4 points, but the TX-RZ620 has 6.

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

Onkyo TX-SR383 got 5 points for the multichannel surround sound and Onkyo TX-RZ620 got 7.

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. Onkyo TX-RZ620 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 TX-RZ620.