Be one of the first to experience our 2025 LG OLED TVs

2/5

43085

320W 4.1ch Sound Bar Audio System with Wireless Subwoofer and Bluetooth Connectivity

DISCONTINUED

NB4540

320W 4.1ch Sound Bar Audio System with Wireless Subwoofer and Bluetooth Connectivity

Name: 320W 4.1ch Sound Bar Audio System with Wireless Subwoofer and Bluetooth Connectivity
Brand: LG Electronics
SKU: NB4540
Availability: Discontinued

NB4540

Key features

All Specs

4.1 Channel Audio
Wireless Subwoofer
Bluetooth®
HDMI Out

Compare

Features and specs

All Specs

Collapse All

POWER

Power Consumption

30W

Standby

< 0.5W

GENERAL

Channels

4.1

Total Power

320 Watts

CONNECTIVITY

HDMI® Out

Yes

USB

Yes

Portable Audio In (3.5mm)

Yes

Wireless Active Subwoofer

Yes

Wireless Audio Streaming via Bluetooth®

Yes

Wireless Sound Sync

Yes

HDMI® Input

Yes

SIMPLINK™ (HDMI™ CEC)

Yes

Optical Input

Yes

DIMENSIONS / WEIGHT

Shipping Dimensions (WxHxD)

35.3" x 16.7" x 10.8"

Subwoofer (W x H x D)

8.7" x 13.84" x 11.06"

Shipping Weight

25.8 lbs

TV Matching

47" and above

Net Weight

19.6 lbs

Sound Bar (WxHxD)

33.1" x1.37" x 3.2"

WARRANTY / UPC

Limited Warranty

1 Year Parts and Labor

UPC

719192596177

SPEAKER

Front

40W x 2

Subwoofer

160W (wireless)

Surround

40W x 2

INCLUDED ACCESSORIES

Remote Control

MA2

Optical Cable

Yes

Wall Mount Bracket

Yes

USB Cable

Yes

Remote Control Batteries

2 (Size AAA)

FEATURES

Auto Volume Leveler

Yes

Audio Return Channel (ARC)

Yes

Dynamic Range Control

Yes

Clear Voice

Yes

AUDIO FORMAT

LPCM

Yes

MP3

Yes

WMA

Yes

Dolby Digital

Yes

DTS 2.0

Yes

Review Highlights

List of Pros Highlights

List of Cons Highlights

For owners

Warranty Information

Register Your Product

Other Support Options

Manuals and Downloads

Help Library

Request a Repair

Compare

45GX950A-B45” UltraGear™ OLED 5K2K WUHD 165Hz or WFHD Dual Mode 330Hz 0.03ms G-sync Compatible DisplayPort 2.1 Gaming Monitor

World's First 5K2K (5120 x 2160) OLED Gaming Monitor¹
125 PPI: Sharp Text Clarity with Reduced Color Fringe
Stunning and bright OLED visuals with rich color, deep blacks, and 1.5M:1 contrast

$1,999.99

Compare

LF24Z6530SLG Counter-Depth MAX™ with Zero Clearance™ 3-Door French Door Refrigerator with Thin Door Design

ThinQ Offer: Get an extra 1-year limited warranty (up to $185 value) through 12/31/25. Terms applyᶲ
Zero Clearance™ hinges and thin door design lets you install the refrigerator in tight spaces and still fully open both doors.¹
Sleek style you love and storage space you need in our largest-capacity Zero Clearance™ refrigerator.

$2,499.00

$500.00 OFF$2,999.00

Free In-Home Delivery

Compare

OLED65C4PUA65 inch Class LG OLED evo C4 4K Smart TV 2024

World's No.1 OLED TV Brand⁶, Celebrating 11 years of perfecting award-winning OLED TV technology
With OLED’s over 8.3 million self-lit pixels see perfect black and luminous colors
Alpha 9 AI Processor Gen7 provides smooth, crisp picture and sound with AI Picture Pro and AI Super Upscaling

$1,399.99

$1,299.01 OFF$2,699.00

Free in-Home DeliveryProfessional Install Available

Compare

OLED77C4PUA77 inch Class LG OLED evo C4 4K Smart TV 2024

World's No.1 OLED TV Brand⁶, Celebrating 11 years of perfecting award-winning OLED TV technology
With OLED’s over 8.3 million self-lit pixels see perfect black and luminous colors
Alpha 9 AI Processor Gen7 provides smooth, crisp picture and sound with AI Picture Pro and AI Super Upscaling

$2,199.99

$1,499.01 OFF$3,699.00

Free in-Home DeliveryProfessional Install Available

Compare

17Z90TP-G.ADB7U1LG gram Pro 17", Thin and Lightweight Laptop, Windows 11 Home, Intel® Evo™ Edition - Intel® Core™ Ultra 7, 32GB RAM, 2TB SSD, Black

An ultra-portable 17" IPS laptop that's just over 3lbs and only 0.57” thin
Windows 11 with Copilot: AI-driven tools for productivity, creativity, and accessibility
Intel®¹ Core™ Ultra 7 processor (Series 2) for cutting-edge AI power and next-gen efficiency

$2,199.99

$200.00 OFF$2,399.99

Images may be simulated and dramatized for illustrative purposes. Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

USA, English