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JBL Bar 300MK2-5.0 Channel All-in-one soundbar with Dolby Atmos, MultiBeam 3.0 & PureVoice 2.0, Easy Sound Calibration, JBL ONE App and Works with Voice Assistant-Enabled Speakers (Black)

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Brand	JBL
Speaker Maximum Output Power	450 Watts
Frequency Response	20 Hz
Connectivity Technology	Bluetooth, HDMI, Optical, USB, Wi-Fi
Audio Output Mode	Surround

About this item

450W max output power and punchy bass without a separate subwoofer: Get a truly immersive sound experience from your music, movies, and games with 450 watts of max output power. Feel the thrilling energy of your favorite music and movies from built-in bass ports that pack a powerful punch.
Dolby Atmos: Hear a plane soar overhead. Feel a crowd swarming past you. Or get carried away by the energy of your go-to dance playlist. Hear extraordinary cinematic sound from all directions with the 3D audio experience of Dolby Atmos.
MultiBeam 3.0: Wherever you're sitting, you'll be in the middle of the action. Our MultiBeam 3.0 delivers a wide, cinema-like soundstage that makes every high-speed chase or epic fight scene come alive. The sound beams perfectly fill your room, delivering truly immersive, lifelike, and realistic sound reproduction.
PureVoice 2.0: Never miss a softly spoken line or a whispered plot twist. JBL's own PureVoice 2.0 automatically raises or optimizes the dialogue, based on both ambient sound in the scene and your soundbar's volume. So you'll always hear every word, clearly and consistently, in cinema-quality sound.
SmartDetails: Hear all the subtleties in a film's sound mix, just like you would in the theater. From a creaking door to a faraway shout, experience every detail the way the filmmakers intended in a clear, balanced sound field, thanks to JBL's own advanced sound enhancement technology.
Works with all ecosystems and music streaming services: Enjoy all your favorite music and podcasts in stunning high-definition sound. Choose from hundreds of online music streaming services through AirPlay, Google Cast, Spotify Connect, Tidal Connect, and Roon Ready.
Easy sound calibration: Every room is different. Your soundbar discovers how sound reflects off your walls and furniture. So it'll deliver the best 3D surround effects, tuned specifically for your space and with any TV.

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This item: JBL Bar 300MK2-5.0 Channel All-in-one soundbar with Dolby Atmos, MultiBeam 3.0 & PureVoice 2.0, Easy Sound Calibration, JBL ONE App and Works with Voice Assistant-Enabled Speakers (Black)

$349.94

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ECHOGEAR Sound Bar Mounting Brackets for TVs - Adjust Height & Depth for Maximum Compatibility Between Your TV & Soundbar - Works with with LG, Vizio, Bose, Dolby Atmos Speakers & More

$33.99

Get it as soon as Monday, Mar 30

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Sold by ECHOGEAR and ships from Amazon Fulfillment.

ECHOGEAR MaxMotion TV Wall Mount for Large TVs 42" to 90" - Full Motion Has Smooth Swivel, Tilt, & Extension - Universal Design Works with Samsung, Vizio & More - Includes Hardware & Drill Template

$97.74

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Product information

Additional details

Audio Output Mode	Surround
Mounting Type	Wall Mount
Enclosure Material	Plastic
Speaker Type	Soundbar
Additional Features	Built In Microphone, Display, Dolby Enabled, Multi Room Audio, USB Port
Antenna Location	Indoor
Controller Type	Amazon Alexa
Color	Black
Is Waterproof	False
Warranty Type	Limited
Control Method	Remote
Speaker Size	37 Inches
Specific Uses For Product	Indoor, Home Theater, Gaming, Music Listening

Power

Speaker Maximum Output Power	450 Watts

Measurements

Unit Count	1.0 Count
Item Dimensions D x W x H	4.1"D x 37"W x 2"H
Item Weight	2.96 Kilograms

Compatibility

Compatible Devices	Gaming Console, Home Theater, Smartphone, Streaming Device, Television

Power Source

Power Source	Corded Electric

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here

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Item details

Sound Quality

Frequency Response	20 Hz
Number of Audio Channels	5.0

Connectivity

Connectivity Technology	Bluetooth, HDMI, Optical, USB, Wi-Fi
Wireless Technology	Airplay, Bluetooth, Wi-Fi
Connectivity Protocol	Bluetooth, Wi-Fi

Audio Hardware

Audio Driver Type	Dynamic Driver

From the manufacturer

JBL Bar 300MK2

The JBL Bar 300MK2 delivers immersive, cinematic sound. Experience crystal-clear dialogue, Dolby Atmos surround effects, and a wide soundstage that elevates your entertainment experience. Plus, enjoy easy access to hundreds of streaming services. All from a smartly designed soundbar that works with every brand of TV.

Bar 300MK2 Product video

Merchant Video

Bar 300MK2 PureVoice 2.0

Merchant Video

JBL Bar 300MK2

PureVoice 2.0

Never miss a softly spoken line or a whispered plot twist. JBL's own PureVoice 2.0 automatically raises or optimizes the dialogue, based on both ambient sound in the scene and your soundbar's volume. So you'll always hear every word, clearly and consistently, in cinema-quality sound.

JBL Bar 300MK2

Dolby Atmos

Hear a plane soar overhead. Feel a crowd swarming past you. Or get carried away by the energy of your go-to dance playlist. Hear extraordinary cinematic sound from all directions with the 3D audio experience of Dolby Atmos.

JBL Bar 300MK2

MultiBeam 3.0

Wherever you're sitting, you'll be in the middle of the action. Our MultiBeam 3.0 delivers a wide, cinema-like soundstage that makes every high-speed chase or epic fight scene come alive. The sound beams perfectly fill your room, delivering truly immersive, lifelike, & realistic sound reproduction

JBL Bar 300MK2

Works with all ecosystems and music streaming services

Enjoy all your favorite music and podcasts in stunning high-definition sound. Choose from hundreds of online music streaming services through AirPlay, Google Cast, Spotify Connect, Tidal Connect, and Roon Ready.

Which JBL Soundbar is right for you?

	JBL Bar 300MK2	JBL Bar 500MK2	JBL Bar 700MK2	JBL Bar 1000MK2	JBL Bar 1300XMK2
Customer Reviews	64	140	57	48	58
Max Output Power	450W	750W	780W	960W	1570W
Channels	5.0	5.1	7.1	7.1.4	11.1.4
Wireless Subwoofer size	N/A	10"	10"	10"	12"
Detachable wireless speakers	✘	✘	✔	✔	✔
Dolby Atmos enabled	✔	✔	✔	✔	✔
MultiBeam 3.0	✔	✔	✔	✔	✔
PureVoice 2.0	✔	✔	✔	✔	✔
Easy sound calibration	✔	✔	✔	✔	✔
Deep sleep	✔	✔	✔	✔	✔
JBL ONE App	✔	✔	✔	✔	✔
Broadcasting	✘	✘	✔	✔	✔
Night listening	✘	✘	✔	✔	✔

Product Description

You’re watching TV in 4K high definition resolution—so why listen in black-and-white? Flat TVs only offer flat sound. The JBL Bar 300MK2 delivers immersive, cinematic sound worthy of our almost century-long Hollywood heritage. Whether you're watching or gaming, enjoy crystal-clear dialogue, Dolby Atmos® surround effects, and a wide soundstage that elevates your entertainment experience. Plus, easy access to hundreds of streaming services, so you can groove to your favorite music with best-in-class sound all night long. All from a smartly designed soundbar that's perfect for cozy rooms and works with every brand of TV. Hear the sound come alive.

What's in the box

1x Bar 300M2 soundbar

Remote control with 2 x batteries

Power cords & 1 x HDMI cable

2 x L-shape wall-mount bracket (main bar) & Wall mount template

Quick start guide & Safety instruction and Warranty card

Top Brand: JBL

Highly Rated

100K+ customers rate items from this brand highly

Trending

100K+ orders for this brand in past 3 months

Low Returns

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Customer reviews

64 global ratings

How customer reviews and ratings work

Customers say

Customers praise the soundbar's audio performance, noting its strong bass without a subwoofer and clear voices. The device is easy to set up, with one customer mentioning the mount is simple to install with provided template and hardware.

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25 customers mention sound quality, 24 positive, 1 negative

Customers praise the sound quality of the soundbar, noting its strong bass without a subwoofer and clear voices.

I have other sound bars, this one is by far the best. Great sound and the surround sound coming from this speaker alone is great.Read more

Amazing sound and great bass out of a soundbar. You can adjust the sound with the JBL one app.Read more

This sound bar is fantastic. I’m have some hearing loss and the quality of dialog is really terrific. Highly recommend.Read more

...Idiot proof setup, and fantastic sound with dialogue being the biggest improvement....Read more

9 customers mention ease of setup, 8 positive, 1 negative

Customers find the soundbar easy to set up, with one mentioning that the mount is simple to install with provided template and hardware.

Out of the box surprised with the easy setup & great sound. The JBL 300 is such an upgrade to the LG sound bar I had!Read more

Easy to set up and sound is great!Read more

Amazing quality sound and very easy to set up....Read more

Great sound (for its size, at least); easy to install; neat streamlined appearance; easy to learn other remotes.Read more

5 customers mention clarity of voice, 5 positive, 0 negative

Customers appreciate the soundbar's clarity, particularly its ability to make dialogue and voices clear.

...Clear Voice and STRONG bass without a subwoofer....Read more

...Makes dialogue clear and proportional to the rest of the audio, movies are easy to hear & understand even with the volume turned down.Read more

...I’m have some hearing loss and the quality of dialog is really terrific. Highly recommend.Read more

...Idiot proof setup, and fantastic sound with dialogue being the biggest improvement....Read more

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L
Great all-in-one system.
Reviewed in the United States on January 5, 2026
Verified Purchase

Amazing quality sound and very easy to set up. One-touch calibration and the smartphone app will have your system connected to the internet and software updated in about 5 minutes. Built-in subwoofer is excellent and delivers all the thundering bass you’d expect from a satellite system. Makes dialogue clear and proportional to the rest of the audio, movies are easy to hear & understand even with the volume turned down.

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6 people found this helpful

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Brian Landrum
Sound quality
Reviewed in the United States on March 16, 2026
Verified Purchase
Easy to set up and sound is great!

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Pablito B
Outstanding!!!
Reviewed in the United States on January 5, 2026
Verified Purchase
The best bang for the buck soundbar in this price range. Idiot proof setup, and fantastic sound with dialogue being the biggest improvement. An excellent choice if you want to keep things simple and get a significant upgrade in sound.

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4 people found this helpful

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fightpoverty
All I one sound! Ya tu sabe como lo hacemos aquí
Reviewed in the United States on March 19, 2026
Verified Purchase
I just received this bad boy! Blown away
I didn’t want to buy subwoofer. This soundbar has a built in subwoofer. I was skeptical. But true

I downloaded the JBL One app. Downloaded the software upgrade! It’s as easy as using the Uber app simple. Watched Battleship, Pacific Rim, Godzilla! Best of the best, bestest for $349 it’s daylight robbery. Not paid by JBL yet, you reading this?

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A. Farrar
Great Sound!
Reviewed in the United States on March 19, 2026
Verified Purchase
Great sound from such a compact speaker! We honestly aren't missing our old surround sound system. We're going to get another one for our back porch TV.

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K
Easy to connect to tv.
Reviewed in the United States on March 16, 2026
Verified Purchase
Easy to connect and works with our LG tv remote. Sound is so much clearer and precise than the tv speaker.

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One person found this helpful

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Jonathan D Fielding
Great sound for a tiny package but no external subwoofer.
Reviewed in the United States on December 25, 2025
Amazon Vine Customer Review of Free Product( What's this? )
In summary up front, this small sound bar was exceptionally well designed except for the lack of a subwoofer output. There is no excuse for this and no reason other than to force the consumer to upgrade to the more expensive one, no reason why they could not have added a subwoofer output hence only four stars instead of five.

Audio reviews are very subjective and often written by those who may not be qualified to review audio products objectively. I am an electrical engineer and I've been in audio connoisseur for decades. There's a lot of marketing hype around this product just like every other audio product out there.

Let's start by talking about the construction. There are a few buttons on top which give you a minimal functionality and there are a few more buttons on the remote but there are even more options to customize this using the app and connecting to it via Bluetooth.
This claims to be 5.0 surround sound which is a bit of a stretch. I opened up this product and saw that there were two types of drivers, the full range speakers and then some small tweeters. The side surround speakers were only made up of edge side firing tweeters. The effect of being immersive is very limited but it is better than just two stereo speakers. For how small it is it actually sounds fantastic. There are more tweeters for the left and right along a total of five full range speakers, two for the left, two for the right and one for the center. Interestingly enough when listening to just stereo music the center channel is used but just for low frequency to help add to the bass. The bass is actually quite impressive and all five of those drivers creates enough air movement to make use of the two curved ports in the back that are tuned to about 50 Hertz. So yes even though this doesn't get deep and I really think that they should have included a subwoofer output to hit those deeper notes, it sounds pretty full without a subwoofer just as long as you don't care about the really deep stuff below 50 hertz.

DIGITAL SIGNAL PROCESSING
What really makes products like this shine is the digital signal processing or DSP. This product claims to be able to do Dolby Atmos which can be a little misleading since Dolby Atmos can include up to dozens of channels or as few as one or two. So this will decode a Dolby Atmos signal and correctly do left center right and left and right surround although the surround is very limited in its effect. Let's talk about the different DSP features.

MultiBeam 3.0
I don't think there's anything at all special about this. There are five drivers that make up left center and right and I do not believe that there is any kind of phase delaying beamforming. So often with audio products they just make up terms to describe very ordinary functionality.

PureVoice 2.0
This was actually quite useful. For speakers that are so small with limited power, and don't believe they're 450 W max that's such a useless metric and untrue, this DSP feature essentially felt like a band limited compressor centered around vocal frequencies of between 500 Hertz and 5 kHz. This helps to make sure that the center dialog is loud enough to be clear without the surrounds being too overpowering. They do a very good job and the audio and speech intelligibility worked great. I did hook us up to my surround sound in place of my giant 13 channel Dolby Atmos surround sound and was quite impressed with its capabilities even though it doesn't come close to sounding as good as discreet speakers.

All of the HDMI features like ERC worked just fine.

POWER
So many audio products use completely fabricated or theoretical numbers and they disguise it by using the term max power. The only thing that matters is RMS power which is hidden. When I opened up this device I measured the power supply rails to be about 20 to 24 volts which will get you about 30-50 watts depending on the speaker impedance. Now having said that, this was a reasonably powerful sound bar and it was able to get decently loud and I think for most customers who don't care about audio then this would be sufficient but it definitely is not anywhere close to 450 Watts.

So who is this product for?
For the amount of money you're spending I think if your goal is the best sound quality that I would go with something bigger with discreet speakers and an externally powered subwoofer.
If your goal however is to get the smallest package with the best possible sound and that was your ultimate goal and you were okay paying about twice as much as other brands then this is for you. I don't know of any other soundbar and that price range that sounds this good.

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17 people found this helpful

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K Simmons
Underdog that’s compete with the big boys
Reviewed in the United States on January 16, 2026
Verified Purchase
Wonderful sound without hassle.
Easy installation, love the app.
Can adjust all sound decibels on app to your liking in seconds.
Brought back the jumping out of your seat back to movies without going to the cinemas. Very pleased!

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3 people found this helpful

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Brand	JBL
Model Number	JBLBAR300M2BLKAM
Model Name	Bar 300MK2
Built-In Media	1x Bar 300M2 soundbar, 2 x L-shape wall-mount bracket (main bar) & Wall mount template, Power cords & 1 x HDMI cable, Quick start guide & Safety instruction and Warranty card, Remote control with 2 x batteries
Age Range Description	Adult,Kid
Number of Items	1
UPC	050036408035
Global Trade Identification Number	11200130020282
Manufacturer	JBL
Warranty Description	1 year manufacturer
Best Sellers Rank	#10,171 in Electronics (See Top 100 in Electronics) #56 in Home Audio Sound Bars
ASIN	B0FHBKCSNB
Customer Reviews	(64) 4.8 out of 5 stars

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JBL Bar 300MK2-5.0 Channel All-in-one soundbar with Dolby Atmos, MultiBeam 3.0 & PureVoice 2.0, Easy Sound Calibration, JBL ONE App and Works with Voice Assistant-Enabled Speakers (Black)

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TUV Rheinland Recycled Material Verified

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From the manufacturer

JBL Bar 300MK2

Bar 300MK2 Product video

Bar 300MK2 PureVoice 2.0

PureVoice 2.0

JBL Bar 300MK2

Dolby Atmos

JBL Bar 300MK2

MultiBeam 3.0

JBL Bar 300MK2

Works with all ecosystems and music streaming services

Which JBL Soundbar is right for you?

Product Description

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What's in the box

Top Brand: JBL

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Compact soundbar with impressive clarity and Atmos effects

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