The picture quality of today's HDTVs is fantastic. But frankly, the sound can be about as flat as the panel. LG's NB2420A pumps out dynamic, full-bodied sound that will make your TV's tiny speakers seem downright laughable. This sound bar uses virtual surround sound processing to create a wraparound effect that draws you into the action. You'll love the way it brings the soundtracks of DVDs, Blu-ray movies and high-def TV shows to life. You won't even need a receiver or amplifier — this sound bar has built-in amplification powering its six drivers, for clear dialogue and spacious, lifelike effects.

An easy going system

The NB2420A is just about the perfect size for typical 42" TVs. You'll find that it fits perfectly on many tabletops, or you can wall-mount it using the included hardware. And talk about simple — there's even an optical cable included so you can make an easy connection to your TV or disc player to enjoy the cleanest possible sound.

Not just for television

You can also play music through the NB2420A. Built-in Bluetooth® lets you stream your playlist wirelessly from your compatible smartphone, tablet or laptop computer. You can also use the back-panel USB input to enjoy music files from a thumb drive.

Product highlights:

Sound bar:

160 watts (80 watts x 2)
four 2-1/2" midrange drivers
built-in Bluetooth® for wireless audio streaming from compatible smartphones, tablets and laptops
two 1" silk dome tweeters
wall mounting bracket included
requires AC power
weight: 5.1 lbs.
39-3/8"W x 3-1/4"H x 2-5/8"D

Connections:

1 analog stereo mini-jack input
2 optical digital audio inputs
USB input for playing music files from a thumb drive

General:

remote control
optical cable included
warranty: 1 year parts, 90-days labor
MFR # NB2420A

What's in the box:

LG NB2420A owner's manual

Sound bar speaker
Remote control (AKB73575402)
2 "AAA" batteries
59" Optical (toslink) digital audio cable
Wall-mount bracket
Cleaning cloth
Owner's Manual
Wall Bracket Install Guide (Template)
Warranty sheet

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Researched by Crutchfield's Stacey B.

Features & specs

General
Design	---
Amplification	---
Separate Subwoofer	0
Wireless Surrounds	---
Number Of Channels	2
Surround Formats
Dolby Digital	Yes
DTS	No
Dolby Atmos	No
DTS:X	No
Audio Enhancements
Dialogue Enhancement	---
Auto Volume	---
Night Mode	---
Virtual Surround	Virtual 3D Surround Sound
Room Correction	No
Audio Connections
Optical Digital Inputs	2
Coaxial Digital Inputs	None
HDMI ARC Input	---
HDMI eARC Input	---
3.5mm Stereo Analog Inputs	1
RCA Stereo Analog Inputs	None
USB Type-A Input	No
Subwoofer Output	0
Audio Specs
Tweeter	1" Dome (2)
Midrange	None
Woofer	2.5" Cone (4)
Subwoofer Driver	None
Enclosure	Sealed
System Frequency Response	Not Given
Sound Bar RMS Power	80 x 2
Subwoofer RMS Power	N/A
Video Connections
HDMI Inputs	None
HDMI Outputs	None
Video Specs
HDMI Version	---
HDMI Video Pass-through Resolution	---
HDR Video Compatible	---
Control
Includes Remote	Yes
Voice Control	No
Control by App	---
HDMI CEC	---
Remote IR Passthrough	No
Learns TV Remote	---
Audio Streaming
Bluetooth Connectivity	---
Bluetooth Audio Playback	No
Bluetooth Transmitter Mode	No
Online Music Sources	---
Apple AirPlay	---
Chromecast built-in	---
Amazon Music	---
Apple Music	---
Pandora	---
SiriusXM	---
Spotify	---
TIDAL	---
TuneIn	---
YouTube Music	---
Files on Your Network	No
Wi-Fi Networking
Built-in Wi-Fi Version	---
Bands	---
Other Info
Wall-mountable	Yes
Mounting Bracket Included	Yes
Sound Bar Size (inches)	3-1/4H x 39-3/8W x 2-5/8D
Sound Bar Weight	5.1 lbs
Subwoofer Size (inches)	No Subwoofer
Subwoofer Weight	N/A
Speaker Parts Warranty	1 Year
Speaker Labor Warranty	90 Days
Amplifier Parts Warranty	1 Year
Amplifier Labor Warranty	90 Days

Product Research

Features
Controls
Connections

Features

Overview: The LG NB2420A Sound Bar Audio System provides virtual 3D surround sound from a single speaker. It make a great addition to your table-top or wall-mounted flat-panel television. The LG NB2420A provides both analog and digital audio connections, along with a USB port and Bluetooth wireless connectivity. The system includes an IR remote for wireless control.

3D Sound Optimizer: The LG NB2420A Sound Bar Audio System creates a virtual 3D surround sound experience from a single speaker with a wider soundstage and more immersive cinematic sound that will completely envelop you and bring your audio/video content to life.

160-Watts Amplifier: The LG NB2420A employs an integrated 160-watt amplifier for dynamic sound performance. The amplifier is rated at 80-watts x 2-channel (at 1kHz, into 4-ohms, with 10% THD).

Two-Way Speaker System: The LG NB2420A Sound Bar features a two-way speaker system with two silk dome tweeters and two pair of parabolar woofers.

Silk Dome Tweeter: The NB2420A Sound Bar Audio System utilizes LG's silk dome speaker technology for clearer sound with less distortion, and an overall better sound experience. The sound bar houses a 1" silk dome tweeter.
Dual Woofers: The Sound Bar is fitted with four 2.5" parabolar cone woofers for excellent midrange performance.

Note: The sound bar does not feature a grille. All drivers are exposed.

Mounting Options: The LG Sound Bar can be either be table-top or wall mounted. The LG Sound Bar can simply be placed on a table, shelf, or stand thanks to its integrated rubber feet. The supplied wall-mount bracket gives you the option of mounting the sound bar on your wall.

Magnetic Shielding: The LG Sound Bar is magnetically shielded for safe placement next to older CRT television.

Controls

Touch-Sensitive Controls: The LG Sound Bar features touch-sensitive buttons on the front-panel. Functions include; Power On/Off, Volume Up/Down, Play/Pause, Stop, Function (source).

Remote Control: The LG NB2420A includes an IR remote control for wireless operation of the Sound Bar System. The remote is pre-programmed to control basic functions (Power On/Off, Volume Up/Down, AV Input, Channel Up/Down, & Mute) of select LG flat-panel TVS, and can be programmed to control other manufacture televisions ( Zenith, GoldStar, Samsung, Sony, Hitachi).

Surround Modes: The LG Sound Bar System has a number of preset surround modes to choose from, based on your listening preference and the source content.

Natural: Enjoy comfortable and natural sound.
Bypass: Enjoy the sound without equalizer effect.
Bass: Reinforces the bass, treble, and surround sound effect.
Clear Voice: Makes voices and dialog sound clearer; recommended for Dolby Digital/DTS sources.
Game: Enjoy more virtual sound while playing video games.
Upscaler: Enhances the sound of compressed MP3/WMA music files; this mode is only available for 2ch sources.
Night: Useful when watching movies at low volume lat at night.
Loudness: Improves the bass and treble sound.

A/V Sync (Audio Delay): When receiving audio signal from your TV, sound and images may not be matched. In this case, the AV Sync function lets you adjust the audio delay time between 0 and 300m/sec.

Dolby DRC (Dynamic Range Control): The Sound Bar provides dynamic range compression for Dolby Digital content to make the sound clearer when the volume is at a low level.

Mute: The Sound Bar offers a mute function on the remote control to lower the volume to zero immediately.

Sleep Timer: The LG NB2420A Sound Bar provides a sleep timer function that will automatically turn-off the unit after 10 to 180 minutes.

Automatic Power On/Off (TV Link): This function automatically turns on/off the Sound Bar when you turn on/off your external device (TV, Sat/cable box, Blu-ray/DVD player, etc.) connected via an optical digital cable.

Connections

Digital Audio Inputs: The LG NB2420A Sound Bar Audio System is fitted with two optical (toslink) digital audio inputs in order to connect multiple digital audio devices; such as your TV and Blu-ray player. The two optical digital inputs support LPCM, Dolby Digital, DTS audio formats.

Analog Audio Input: The LG NB2420A is equipped with an analog minijack (3.5mm) audio input for connecting your flat-panel TV (that lacks a digital output), or other analog only audio device.

Bluetooth Connectivity: Built-in Bluetooth technology lets you wirelessly stream audio from your Bluetooth enabled smartphone, tablet, digital audio player, or other BT device to the LG NB2420A. The LG Sound Bar is Bluetooth A2DP (advanced Audio Distribution Profile) compliant; meaning it allows you to stream music from your Bluetooth enabled device, but not control it. You will still control playback of your music from your Bluetooth audio device. Your Bluetooth enabled device must be paired with the NB2420A before operation. Only one device can be paired with this system (it does not support multi-pairing).

Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with LG NB2420A.

USB Port: The LG Sound Bar features a side-panel USB (type-A) port for connecting a USB mass storage class device; such as a USB thumbdrive, digital audio player, or smartphone. The Sound Bar supports playback of MP3/WMA files stored on a compatible USB memory device. The unit provides basic playback functions (Play/Pause, Stop, Fast Forward/Rewind, Skip Track/Folder, & Repeat/Random) over your MP3/WMA music files. The USB port (5V/500mA) will also charge the battery of your USB device.

File Extension: .mp3/.wma
Sampling Frequency: 32-48kHz (MP3/WMA)
Bit Rate: 32-320 kbps (MP3), 40-192 kbps (WMA)
Maximum Files: 999

Note: The unit's USB port cannot recognize external HDDs, Card readers, USB hubs, or computers.

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