Is the LG LHB645N Home Theater good? See the device’s technical sheet

The LG LHB645N home theater is a device with essential features that promise to deliver sound quality for those looking to transform the sound system in the living room into something close to a movie theater experience. Its main highlights are the 1,000W RMS sound power, Dolby and DTS audio technologies, and Bluetooth.

With 5.1 channels, the LHB645N is an option that features multiple audio outputs to compose the sound set, which should require the user an environment with enough space for proper installation. In addition, its connections allow pairing with various devices such as TVs, smartphones, video games, and notebooks. Check out the complete information about the model below and find out if it is a good option for you.

LG LHB645N Datasheet

Sound Power1000W RMS
Bluetooth Version4.0
ConnectivityHDMI, USB, and optical cable
ExtrasFM radio, Dolby Digital audio


The LG LHB645N is a home theater that brings together five sound devices. The set consists of two towers, two boxes, and a center speaker. In addition, it has a subwoofer to complete the kit. Available in black, the devices require a large enough space for installation.

However, even though LG’s home theater is composed of many devices, its minimalist design helps to compose the decor without compromising too much. In the following table, you will find the dimensions and weight of each of the components to plan the best installation.

LG LHB645N home theater dimensions

Central unit36 x 6.0 x 31 cm2.7 kg
Front box25 x 11.58 x 29 cm3.7 kg
Backbox9.7 x 14 x 8 cm430 grams
Central box26 x 9.2 x 7.3 cm570 grams
Subwoofer13 x 35.4 x 32.5 cm4.74 kg
Source: LG

In terms of connectivity, the home theater presents a series of connections that can make the user’s day-to-day life more practical. You can find inputs and outputs for the microphone and optical cable in the audio interface. In addition, there are two HDMI and two USB inputs.

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Power and sound

The speaker set of LG’s home theater promises to deliver good sound power of 1,000 W RMS in its 5.2 channels. The Dolby Digital and DTS-HD audio technologies promise high sound quality with well-defined bass and treble. For a more immersive experience, the user needs to position the speakers correctly in the desired environment.


Users who want to improve the sound system at home can find several interesting features in LG’s home theater. With its Bluetooth connection, you can play music directly from your cell phone or connect the LHB645N to your TV with the Sound Sync Wireless function, responsible for synchronizing images and audio. The HDMI and USB connections also allow you to connect devices such as computers and video games via cable.

With an FM antenna, the audio device enables the user to tune in to radio stations directly through the home theater. To create a distraction-free environment, it is possible to use the Private Sound mode feature directly on the cell phone through the LG AV Remote app, which allows you to play the sounds directly on the smartphone to be used with headphones. The app also works as a remote control.

Price and cost-effectiveness

Available in black, its design has few visual details, and it can be found on Amazon for prices starting at $299.

The model is an entry-level option and can please the less demanding public. It has functions such as Sound Sync, Dolby Digital audio, and FM radio. The manufacturer also provides a 12-month warranty.

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For a slightly higher price, it is also possible to find sound bar options that compete with traditional home theaters. The JBL Bar 5.1 is a model that can be found for as little as $499 on Amazon. The model has detachable speakers with a wireless connection, which makes it possible to install the speakers in a customized way in the environment. Its main highlights are connectivity with 4K devices, audio with Dolby and DTS technologies, and 218W of RMS power.

This post may contain affiliate links, which means that I may receive a commission if you make a purchase using these links. As an Amazon Associate, I earn from qualifying purchases.


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