LG SJ4Y-S Review – High Resolution Audio Sound Bar

When it comes to audio technology, LG has been one of the companies to emerge in the market in the past few years. One of LG’s products that’s sparkled a massive interest is their SJ4Y-S soundbar and subwoofer. This LG SJ4Y-S review will be focused on the design, features, and performance of this soundbar.


Score 8.8 OUT OF 10


The LG SJ4Y-S soundbar and subwoofer pair is a sound system primary designed for home theatres. When paired together, these two audio devices can help you get the audio experience that you’ve always wanted.

Both the soundbar and the subwoofer are black and they look elegant, pretty simplistic, and high-tech. When it comes to dimensions, the soundbar measures 35 x 3.4 x 12.6 inches, and the subwoofer measures 6.7 x 9.9 x 2.2 inches. The total nominal output power of the LG SJ4Y-S is 300 Watts.

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The LG SJ4Y-S has features that many people find attractive. These features include a wireless subwoofer, Adaptive Sound Control, LG Sound Sync, upgradability of the system, and multiple options to connect. To help you understand what you get with the SJ4Y-S, we’ll go through some of its features.

Wireless Subwoofer

The LG SJ4Y-S subwoofer can connect to the soundboard wirelessly. This is great as you can position your subwoofer further away from the soundbar and where you believe it sounds better in the room. So with this you’ll be able to place your subwoofer in a spot in your room and not to worry about the connection breaking.

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Adaptive Sound Control

LG SJ4Y-SEven if you are mainly looking for a soundbar to watch movies on your TV, definetly you will also use this soundbar for other things such as watching sports, listening to music, or playing video games.

The LG SJ4Y-S sound system features what is called “Adaptive Sound Control”. This is meant to regulate the sound levels to suit different sound scenarios and let you enjoy watching TV to the fullest.

Other Sound Modes

Aside from the Adaptive Sound Control, the LG SJ4Y-S offers you the choice between three pre-set sound modes, Standard, Bass Blast, and Cinema.

You can use the Standard mode when you prefer a more generic sound. The Bass Blast mode, on the other hand, is great for the times you want to enhance the bass. Finally, you can choose the Cinema mode when you are watching a movie. In any case, you’ll get the best of the sound with any device connected to your LG SJ4Y-S.

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LG Sound Sync

The LG Sound Sync technology is for everyone who doesn’t like to have to deal with a lot of wires. This technology allows your TV to connect to the soundbar via Bluetooth. This way, you can avoid the messy wires and connect the soundbar to the TV in an easier way. 

The Sound Sync technology is very reliable, and you won’t notice a difference in the signal from when the soundbar is wired to the TV. However, if you prefer a wired connection, there is the option available for that too. 


LG SJ4Y-SThe LG SJ4Y-S sound system can be connected to your device be several means. Besides from Bluetooth connectivity, the system can be connected via HDMI, USB, an optical cable, and via audio line-in. Therefore, you’ll have the option to connect the soundbar using a method suitable for your device.

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Another great thing about the LG SJ4Y-S is that it can be upgraded with the SP4J surround speakers. These speakers are sold separately, but if you want to enhance your sound experience even more, you should definitely consider buying the SP4J surround speakers from Amazon by following this link.

Like the subwoofer of the LG SJ4Y-S, these speakers are wireless. This means that you can position them in different places in your room.


The performance of the LG SJ4Y-S is very good for its price. The soundbar is a high resolution soundbar, and it can produce sounds with resolution up to 24-bit/96kHz. In addition this soundbar is CTA-certified.

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The LG SJ4Y-S soundbar and subwoofer produce a nice bass and a clear overall sound. The mid frequencies sound great on this system, and the treble is warm and soft. Regardless of the sound mode that you choose, you’ll have nice, detailed, and rich sound.

Final Thoughts

The LG SJ4Y-S offers many options in terms of configuration, connectivity and future audio system expansion. This is something to note given its price. Of course, the design is one additional plus for this unit, and we honestly think that both the soundbar and subwoofer look sleek.

Ultimately, this soundbar and subwoofer has everything that a great soundbar and subwoofer should offer. If you are on a hunt for a reasonably priced quality soundbar, we think you should consider the LG SJ4Y-S.

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