Yamaha SR-B20A vs Nakamichi Shockwafe Elite 7.2 eARC

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Votes 1 1
Rating 5 5

SR-B20A vs Shockwafe Elite 7.2 eARC comparison chart

Yamaha SR-B20A
Nakamichi Shockwafe Elite 7.2 eARC
Multichannel surround

Yamaha SR-B20A vs Nakamichi Shockwafe Elite 7.2 eARC review

Yamaha SR-B20A
Nakamichi Shockwafe Elite 7.2 eARC

Comparing Yamaha SR-B20A and Nakamichi Shockwafe Elite 7.2 eARC makes sense because it shows what devices in their segment can offer. Shockwafe Elite 7.2 eARC offers better sound and bass than its opponent - SR-B20A. According to the results of our comparison, SR-B20A received 3.8 points out of 10 possible, and Shockwafe Elite 7.2 eARC was rated 6 points.

Advantages Yamaha SR-B20A over Nakamichi Shockwafe Elite 7.2 eARC

  • Has an integrated subwoofer

Advantages Nakamichi Shockwafe Elite 7.2 eARC over Yamaha SR-B20A

  • Comes with 2 separate speakers
  • Separate subwoofer provided
  • Supports object-oriented sound with Dolby Atmos technology
  • Surround sound with DTS:X support

Audio features

The SR-B20A is rated 5 of 10 against 9 for the Shockwafe Elite 7.2 eARC according to the audio features rating.

Shockwafe Elite 7.2 eARC

It worth understanding the difference between the two types of amplification: a passive soundbar does not have its own amplifier and receives amplification from the signal source, while an active soundbar has a built-in amplifier. The same active type of amplification is used in the SR-B20A and the Shockwafe Elite 7.2 eARC.

There are stereo soundbars and multichannel ones. It is with the help of multichannel devices that you can get volumetric sound. It is worth noting one of the main differences, the SR-B20A has 2.1 channels, while the Shockwafe Elite 7.2 eARC has 7.2.4 channels. Also, the output power of the soundbars under consideration is different, Yamaha SR-B20A has 100 (overall) W, and 1000 (overall) W has the competitor.

SR-B20A Shockwafe Elite 7.2 eARC
Built-in channels2.17.2.4
Amplification typeactiveactive
Output power, W100 (overall)1000 (overall)
Separate speaker (in package)02
Separate speaker connectionshas notwireless


Soundbars can have a built-in or external subwoofer. The first type is inseparable from the soundbar body, but for the second, you can choose a good location for deep bass. A built-in subwoofer is only present in the SR-B20A. The Shockwafe Elite 7.2 eARC comes with an external subwoofer.

SR-B20A Shockwafe Elite 7.2 eARC
Built-in subwoofer
Separate subwoofer (in package)
Separate subwoofer connectionswireless

Multichannel surround

Unlike stereo, when reproducing multichannel sound, each specific direction of sound corresponds to its dedicated channel with a separate independent loudspeaker, which creates a three-dimensional sound stage. The SR-B20A received rating 6 out of 10 for multichannel audio processing, but the Shockwafe Elite 7.2 eARC, in the same category, earned 10 out of 10 points.

Shockwafe Elite 7.2 eARC

The peculiarity of Dolby Atmos is that this format is object-oriented, that is, each object of the audio signal is sounded separately and linked to its spatial location. Dolby Atmos surround sound support is implemented only in Nakamichi Shockwafe Elite 7.2 eARC.

DTS:X is an algorithm for processing sound scenes by the processor, linking directly to objects, rather than channels, and calculating the optimal distribution of sound output in a room. The manufacturer has implemented DTS:X technology only in Shockwafe Elite 7.2 eARC.

SR-B20A Shockwafe Elite 7.2 eARC
Dolby Atmos
Dolby (other)Dolby Digital, Dolby Pro Logic IIDolby TrueHD, Dolby Digital, Dolby Digital Plus
DTS (other)DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS Digital Surround

Streaming services

The possibility to listen online to millions of songs from one device has become a reality thanks to streaming services.

Shockwafe Elite 7.2 eARC

None of the two models is not implemented AirPlay function. The popular Spotify service cannot be used on both soundbars.

SR-B20A Shockwafe Elite 7.2 eARC
Apple Music (AirPlay)
Amazon Music
Other streaming serviceshas nothas not


The existence of a sufficient number of current connectors significantly expands the functionality of the device. For example, only through HDMI is it possible to implement the transfer of object-oriented formats, and the presence of a Bluetooth connection will allow remote control, etc. The devices received different ratings for connectivity: Yamaha SR-B20A was rated 4 out of 10, and Nakamichi Shockwafe Elite 7.2 eARC was rated 7 out of 10.

Shockwafe Elite 7.2 eARC

The presence of Wi-Fi in the soundbar allows you to get rid of wires when connected to a sound source and get minimal audio latency when playing content from streaming services. Such connection as via Wi-Fi is not possible on any of the devices in comparison.

Bluetooth connection is now one of the main communication protocols for speaker systems, which provides excellent quality and minimal audio latency. The availability of Bluetooth protocol, we can see in both models. The SR-B20A has 0/1 HDMI inputs/outputs, but the Shockwafe Elite 7.2 eARC got 1/1 HDMI inputs/outputs from the manufacturer.

HDMI ARC is a very usefull technology that creates a two-way communication channel between a TV and another device. This is convenient since there is no need to use optical and other cables in the system. HDMI ARC is basic for both soundbars. Connecting external devices via USB can be done on both models.

SR-B20A Shockwafe Elite 7.2 eARC
Ethernet (RJ45)00
HDMI input/output0/11/1
Optical digital input/output2/01/0
USB1 (USB 2.0)1 (USB 2.0)
Coaxial digital input/output0/01/0
Analog audio input/output (RCA)0/00/0
Headphone output00
Subwoofer output00


Voice control is designed to make operating the device more convenient. This allows you to control basic soundbar functions from anywhere in the room.

Proprietary applications allow you to control your soundbars remotely. This is possible both via Bluetooth and Wi-Fi. In our case, the ability to control the soundbar using the app is not implemented in any of the competitors. None of these soundbars have a built-in microphone.

Some soundbars can be part of a multi-room system and it is an affordable solution for sounding the whole house. However, it is impossible to create a multiroom system based on each of these soundbars.

SR-B20A Shockwafe Elite 7.2 eARC
Voice control
App control
Remote control


SR-B20A Shockwafe Elite 7.2 eARC
Size (Wx H x D), cm/in91x5.3x13.1/35.7x2.2x5.2114.3 x 7.6 x 7.8/45.5 x 3 x 3.6
Weight, kg/pounds3.2/7.12.7/6
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