What’s the Difference Between 2.1 and 3.1 Soundbar?

When you buy a new TV, you get excited. You become busy setting it up. But when you find the built-in audio system is low grade and unsatisfied, you don’t feel good. Even it can happen with a person who has the best TV in his home. So, what should you do at this moment?

If your built-in audio system is low grade, then a soundbar will be the best option to replace it and solve your problem. Nowadays, a soundbar has become quite popular. It is the easiest way to fix your audio system, and you can also purchase it at a reasonable price. There are many soundbars on the market. So, which one will be the perfect one for you or which one will be the best option for your sound system?

A 2.1 or 3.1 soundbar can be the best starter option for your sound system. So, what is the difference between a 2.1 and 3.1 soundbar?

A 2.1 soundbar comes with two channels which are a left and a right channel. A 3.1 soundbar comes with three channels; left, right and center. Both of the soundbars contain a subwoofer. A 3.1 will perform better than a 2.1 soundbar as it has a center channel.

Keep reading to have a clear conception of the differences between these two soundbars.

Differences Between 2.1 and 3.1 Soundbars

2.1 Soundbar Setup

2.1 Channel Soundbar

A few moments ago, we told you a 2.1 soundbar contains a left and a right channel and a subwoofer. The two different channels are built into the soundbar, and the subwoofer is external. External subwoofers are made to produce low-frequency sounds that soundbars aren’t able to produce. You will get a clear right and left speaker sound.

But if you want to hear a high dynamic sound, then a 2.1 soundbar won’t be able to provide it because it doesn’t have a central speaker. But if you are looking for a small upgrade to your TV’s built-in sound system, a 2.1 will be a perfect choice.  

3.1 Soundbar Setup

3.1 Soundbar

A 3.1 soundbar has three different channels. It is a little different than a 2.1 soundbar which has two channels. A 3.1 soundbar has an extra center channel.

 This extra center channel gives you dialogues and dynamic sounds. This central speaker gets you a surround sound feel.

A 3.1 soundbar also comes with an external subwoofer. It doesn’t give rear speakers as a 5.1 soundbar. But it provides much better sound quality than a 2.1 soundbar.

Soundbar Channels Explained: 2.1, 3.1, 5.1, etc.

Soundbar 1
  • A 2.1 Soundbar – two different channels, left and right, an external subwoofer. A 2.1 soundbar can be purchased at a reasonable price.
  • A 3.1 Soundbar – three different channels, left, right, and central. It also has an external subwoofer. They give a better sound quality and dynamic sound and protect dialogues from mixing with the music and sounds.
  • A 5.1 Soundbar – five different channels, left, right, center, surround right, and surround left with subwoofer. The left and right surround channels give the system a traditional surround sound experience. As they contain two additional channels, you need to consume more money than a 2.1 or 3.1 soundbar. 5.1 soundbars are generally much different from both 2.1 and 3.1 soundbars

Benefits of Soundbar Systems

The Soundbar systems are the best option to solve your TV’s low-grade audio system. It has become quite popular recently. With the soundbars, you can have a dynamic sound. You can simply use them and set them up. They are also budget-friendly.

High-Quality Sound

Whenever you buy something, you always probably look for a trusted brand or product. In the case of speakers, you look for top manufacturers, cause the industry experts to trust them. It is the same case for soundbars.

 Trusted industry-leading brands are providing amazing soundbars which give a dynamic sound experience. The lesser-known brands aren’t lagging behind in the market. It isn’t easy to gain room-filling sound, the multi-dimensional sound that conventional surround audio systems provide. In that case, soundbars are becoming very close and comparable. They are making it difficult to solve the problem of custom building a costly and complicated surround sound system.

Simple and Easy to Use for Almost Anyone

The easy and simple setup and the simple utilization make a soundbar perfect. Soundbars don’t make things difficult. They help you to give a great sound quality for your TV. The best thing about soundbars is they easily implement with your TV and other instruments, and many of them update automatically to make sure that your device is up-to-date with the latest technology. Though they are simple, they ensure a long-time warranty.

They Are Extremely Compact

Conventional sound systems are considered as huge. They need a lot of components in order to gain a proper surround sound feel. But sometimes, those components can make a big mess. Another problem is they have large and unruly wiring that you won’t like.

If you want to get rid of this traditional sound system, then switch to soundbars. They save you from this big mess. They easily adjust with your room and keep your room tidy and clean.

Stylish and Modern Designs

The soundbars provide a solid sound system and a stylish looking. If you want to set up your soundbar in your main room, then it will be a great choice. If you want the attraction of the people, you need to set up your soundbar next to your TV by following our guide. If you do so, you will probably get people’s compliments, and you will feel better.

Soundbars Are Typically Budget-Friendly

So, it might be best if you had a soundbar to get rid of the low-grade audio system of your TV. You always want the best product at a reasonable or budget-friendly price. You will find the perfect soundbar according to your audio problem and budget.

You may find many soundbars on the market. Each of them has different qualities and uses; you need to find the perfect one for your TV’s audio problem.

Suppose, if you don’t want to get dynamic sound with your soundbar, then you can purchase a 2.1 soundbar at a very low price. But if you want dynamic sound or surround sound system, you have to consume much more money. You can buy a 3.1 or 5.1 soundbar for your sound system.

Choosing the Right Soundbar for You

Which soundbar would you buy or which soundbar would be the best one for your sound system? These all depend on your budget and your preferences. Whether you want to buy a 2.1 soundbar or a 3.1 soundbar, first, you have to decide your budget and give priority to your preferences.

Recommended 2.1 Soundbars

If your intention is to spend money around $100-$200 and you don’t want to have any dynamic or surround sound system, then a 2.1 soundbar will be a great choice for your TV’s audio system. You can purchase a 2.1 soundbar at a price of $100-$200. Check out these three options you may like:

VIZIO Sound Bar for TV with Wireless Subwoofer, 2.1 Home Audio Sound Bar with Bluetooth 38"...
  • Enjoy 100 dB of room filling, crystal clear sound with less than 1 percent total harmonic distortion
  • Wireless subwoofer adds rich bass from anywhere in the room
  • Built in Bluetooth lets you lose the wires and listen to your music with a tap of a finger with built in Bluetooth. Sound pressure level - 100 dB. Sound bar frequency - 50 hertz - 19 hertz
  • Premium audio with Dolby digital decoding, plus DTS TruVolume and DTS audio post processing
  • Wireless remote for convenient volume, input and audio controls; Wireless subwoofer range approximately 60 feet – line of sight from sound bar

VIZIO SB3821 (on Amazon) -The VIZIO SB3821 contains 100 dB of sound. It has a wireless subwoofer, and the range of the subwoofer is 60 feet. Bluetooth technology is also inserted into it so that you can easily control it. Dolby Digital decoding, DTS audio post-processing, and DTS TruVolume are also found in it.

Wohome 2.2 Sound Bar for TV with Built-in Subwoofers, 32 Inches Detachable Soundbar Speaker,...
  • Room-Filling Audio with Dual Built-in Subwoofers - Experience theater-quality 100dB surround sound powered by dual subwoofers and full-range speakers, delivers deep powerful bass and crystal-clear treble for movies, music, and gaming nights with family.
  • Universal Connectivity Options - Bluetooth 5.3 ensures stable wireless streaming from smartphones/tablets, wired connections via optical/aux ports, works seamlessly with smart TVs, 4K TVs, PCs, projectors, and gaming consoles (HDMI not supported).
  • 3 Smart EQ Modes - Professional-grade DSP technology offers three optimized presets: Movie Mode boosts explosive bass for action scenes, Music Mode balances vocals/instruments, News Mode clarifies dialogue, adapts to every entertainment scenario.
  • Space-Saving Modular Design - Convert between 32-inch soundbar (compact setup) and dual 16-inch tower speakers (immersive stereo separation), flexible placement ideal for apartments, home theaters, and gaming rooms.
  • Intuitive Control System - Includes dedicated remote and side buttons for effortless operation (Note: Does not sync with TV/Fire, Roku, and Universal remotes - standalone control required).

Wohome 2.1 Channel Soundbar S28 (on Amazon) -The Wohome 2.1 Channel Soundbar S28 comes with exquisite features. It contains six drivers, two built-in subwoofers, two tweeter speakers, and two full-range speakers. It provides 105 dB of sound in order to fill the room. It also has Bluetooth technology to facilitate your control system, a built-in DSP chip.

Bestisan Soundbar 28-Inch 80W with HDMI-ARC, Bluetooth 5.0, Optical Coaxial USB AUX Connection, 4...
  • 【Broad Remote Compatibility】- Support HDMI-ARC&HDMI-CEC,and could let you use your TV remote to control volume and on/off. No need two Remote . Enjoy wireless streaming music through Bluetooth 5.0; AUX, Coaxial, USB, and Optical inputs, could work with almost all your devices.
  • 【Immersive 3D surround Sound Experience】- With built-in DSP technology, the BESTISAN SE05P has surround sound system can turn an ordinary TV experience to a 3D surround sound experience. BESTISAN SE05P Sound bar for TV is equipped with four full range speakers. The dynamic bass is achieved through a special port tube reflection to deliver an immersive cinematic experience. The SE05P has a maximum volume of 110dB and a peak power of 80W.
  • 【Dialogue Enhancement Technology】- BESTISAN SE05P home audio sound bars with Dialogue enhancement Technology can make every word and detail stand out. With less than 1% total harmonic distortion provding the sound reproduction better than most products on the market to let you hear every music notes beating on each music performance and not miss nothing on each dialogue.
  • 【Built-in DSP & 3 Different Equalizer Modes】- Built-in DSP technology, makes the sound more accurate and the vocals clearer. BESTISAN SE05P Soundbar for TV can improve TV sound, and get you High-quality musics and get extreme gaming experiences. you can tune your tv speakers sound bar to 3 different modes (Music mode, Movie mode, Dialogue mode) to match your favorite activity.
  • 【Bluetooth 5.0 & Multi-wired Connections】- With wireless Bluetooth 5.0 Transmission,you can easily connect OXS S3 home audio speakers to wireless devices like cellphone, pad, tablets, laptop, computer, providing lossless audio transmission and 360-degree sound. Also it supports HDMI-ARC ,USB, AUX, OPTICAL, COAXIAL wired audio input to connect with the TV/PC.

BYL Channel Soundbar (on Amazon) -The BYL 2.1 Channel Soundbar has a 6.5″ subwoofer, which is wireless, and the range of the subwoofer is up to 60 feet. It provides 110 dB of sound in order to fill your home entertainment room. It also has Bluetooth technology. DSP technology is also found in it to support music, dialogue, and movies.

Recommended 3.1 Soundbars

If you are searching for a dynamic sound and you are going to spend around $200-$500, then you can purchase a 3.1 soundbar. A 3.1 soundbar comes with an extra center channel that gives you a much better sound experience than a 2.1 soundbar. When you are going to buy a 3.1 soundbar, then you should buy one of these three:

LG SL6Y 3.1 Channel High Resolution Audio Sound Bar w/ DTS Virtual:X,Black
  • It’s so easy to wirelessly pair your LG sound bar, you’ll feel like an audio expert. Bluetooth 4.2 provides range and reliability to connect your LG sound bar to your TV or device, or you can connect via LG Sound Sync.

LG SL6Y 3.1 (on Amazon) -The LG SL6Y 3.1 soundbar system has three channels: the left, right, and center. It has a wireless subwoofer and DTS Virtual:X that gives you three-dimensional surround sound without the help of any extra speaker. The external subwoofer creates a great bass. The LG SL6Y 3.1 soundbar is one of the most high rated soundbars.

Samsung MM55 Series 3.1 Channel Wireless Sound Bar
  • 3.1 Channel with center channel - enjoy a dynamic home audio experience with 3.1 Channel surround sound
  • Wireless active subwoofer - feel The action of your favorite movies, shows, and sports with dynamic, powerful bass
  • Bluetooth connectivity - connect wireless for one-touch control of your soundbar from Bluetooth compatible devices. Simply select the sound bar for pairing and power It on automatically to play all your favorite music services and more
  • Hdmi - enjoy your favorite movies, shows, and sports with higher quality audio. The HDMI connection transmits digital video and audio over a single cable, delivering a superior entertainment experience
  • Surround sound expansion - experience the full power and depth of your favorite movies and TV shows with a wholly optimized audio experience. Frequency Response (amp):40Hz~20KHz

Samsung MM55 (on Amazon) -The Samsung MM55 has three built-in speakers and a subwoofer. It also has Bluetooth technology. By using this technology, you can easily play many kinds of music, movies, etc. But you won’t be able to play music through AUX and Bluetooth at the same time. It connects your media with the help of one HDMI cord. It provides a great sound experience.

JBL Bar 3.1 - Channel 4K Ultra HD Soundbar with Wireless Subwoofer
  • JBL Surround sound makes movies come alive
  • JBL Surround sound with 450W of power. Max SPL - 103db. Frequency Response - 35Hz to 20KHz
  • Thrilling bass from a 10" (250mm) wireless subwoofer
  • Wireless music streaming with Bluetooth
  • True 4K connectivity with 3 HDMI in/1 HDMI out (ARC)

JBL Bar 3.1 (on Amazon) -The JBL Bar 3.1 comes with 450 watts of sound and an 11″ wireless subwoofer. It has three built-in front speakers. Through Bluetooth technology, you can play music, videos, etc. You can get a true connection to 4KTVs with the help of 3 HDMI in/ 1 HDMI ARC out.

If you want our full list of recommended soundbars, then check here. We wish you a happy shopping!

-our editorial board has reviewed this article and has been approved for publication according to our editorial policy.

Best Seller List of Soundbars:

Bestseller No. 1
Assistrust Sound Bar for Smart TV, Soundbar with Bluetooth/ARC/Opt/AUX Connect, Auto Volume Boost, 3...
  • 【𝐈𝐦𝐩𝐚𝐜𝐭𝐟𝐮𝐥 𝐕𝐨𝐥𝐮𝐦𝐞 𝐁𝐨𝐨𝐬𝐭】: Elevate faint sounds to vibrant with automatic loudness boost. Experience immersive sound through 4 versatile placements—horizontal for distortion-free audio, vertical for room-filling sound, tabletop for vibrant clarity, or wall mount for 360° cinematic magic. Transforms your room into a personal theater.
  • 【𝐄𝐩𝐢𝐜 𝐂𝐢𝐧𝐞𝐦𝐚 𝐀𝐮𝐝𝐢𝐨】: Powered by 4 high-performance drivers, 80W powerful sound output, it provide richer details, like soft whisper or subtle croon, whether deep thunder or sonorous roar, turn flat audioto vivid, adding weight to music, making the virtual game experience immersive.
  • 【𝐓𝐚𝐢𝐥𝐨𝐫𝐞𝐝 𝐒𝐨𝐮𝐧𝐝】: Fine-tune your listening experience with 3 dynamic equalizer modes—movie, music, and news. Enjoy rich, cinematic audio, luxurious melodies, and crystal-clear dialogue, tailored to enhance every scene and soundtrack. Spreading the audio evenly throughout a room, ensures that everyone, regardless of seating position, experiences the full range of sound.
  • 【𝐄𝐟𝐟𝐨𝐫𝐭𝐥𝐞𝐬𝐬 𝐔𝐬𝐞】: Enjoy seamless setup with cutting-edge Bluetooth 5.0 or reliable ARC, OPT, and AUX connections. In ARC mode, control your soundbar with ease using your TV remote, guided by our easy-to-follow instructions and video tutorials.
  • 【𝐄𝐱𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐚𝐥 𝐒𝐮𝐩𝐩𝐨𝐫𝐭】: Your satisfaction is our top priority. Enjoy peace of mind with our 18-month warranty and 24/7 online tech support. Our 60-day hassle-free replacement policy, with top-tier assistance whenever you need it.
SaleBestseller No. 2
Bose TV Speaker - Soundbar for TV with Bluetooth and HDMI-ARC Connectivity, Black, Includes Remote...
  • Hear your TV better: Designed with simplicity in mind, the Bose TV Speaker is a small soundbar that clarifies speech and is a simple fix for better TV sound
  • Wide, natural sound: 2 angled full-range drivers deliver a more realistic, spatial audio experience for overall better TV sound from a small soundbar
  • Enhanced dialogue: This TV speaker is designed to specifically focus on clarifying and elevating vocals and pronunciation
  • Bluetooth TV Speaker: Pair your device to this Bluetooth soundbar to wirelessly stream your favorite music and podcasts. Connect up to 3 devices through the inputs (HDMI, Optical in, and AUX in); the first powered on device will automatically connect
  • Simple setup: A single connection from this compact soundbar to the TV via an optical audio cable (included) or an HDMI cable (sold separately) has you up and running in minutes
Bestseller No. 3
Sony HTB600 BRAVIA Theater Bar 6 3.1.2-Ch Soundbar with Wireless Subwoofer Bundle with CPS 26 Month...
  • SONY USA AUTHORIZED - Includes 26 Months Extended Protection in ADDITION to the Included FULL Manufacturer Protection
  • Discover 3.1.2ch spatial sound with the BRAVIA Theater Bar 6. Up-firing speakers, a dedicated center channel speaker, and support for Dolby Atmos and DTS:X will surround you with expansive sound and clear dialogue. The included subwoofer adds deep, powerful bass, letting you feel the rumble in every scene.
  • Cinematic 3.1.2ch spatial sound: Acoustically designed to deliver cinematic spatial sound with 3 front-firing speakers, including a dedicated center speaker for clear dialogue. Additional dual up-firing speakers bounce sound above you adding an elevated dimension to your movies. The soundbar is accompanied by an included subwoofer for rich, powerful bass.
  • Sound straight from cinema: Get the best streaming experience and authentic cinema sound as the creator’s intended with support for industry-standard formats Dolby Atmos and DTS:X.
  • Center speaker for clear dialogue: A dedicated center channel speaker ensures clear voice reproduction in every scene. From intense conversations to hushed whispers, you’ll catch every word, enhancing your experience across all types of content.
SaleBestseller No. 4
Samsung B-Series Soundbar HW B400F 2.0 ch Soundbar with Built in Subwoofer (2025 Model) One Remote...
  • FULL, BALANCED SOUND WITH A SUBWOOFER INCLUDED: Immerse yourself in your favorite content with perfectly balanced sound and rich bass from the built-in woofer.
  • ONE REMOTE. TOTAL CONTROL: Use your Samsung TV remote to control key soundbar functions, including power, volume and sound effects.*
  • EXPANDS YOUR LISTENING ZONE SO YOU CAN FEEL THE SOUND ALL AROUND YOU: Experience immersive sound that fills the room. Clear audio is projected in all directions so you can feel the action from every angle.
  • SEAMLESSLY CONNECTS TO YOUR TV: Connects to your TV without cable clutter.** Just pair and play your favorite content.
  • PICK UP EVERY PIECE OF DIALOGUE: Hear voices more clearly with dialogue automatically amplified so you don't miss a word.
Bestseller No. 5
Amazon Fire TV Soundbar (newest model), 2.0 speaker with DTS Virtual:X and Dolby Audio, Bluetooth...
  • Amp up your audio - Fire TV Soundbar enhances TV audio with dual speakers for fuller sound, clearer dialogue, and deeper bass—all in a compact design.
  • Immersive sound - Enjoy a three-dimensional virtual surround sound experience with DTS Virtual:X and more detail with Dolby Audio.
  • Easy setup - Just plug in the included HDMI cable to the HDMI eARC/ARC port on your TV to instantly enjoy audio that's always in sync.
  • Compact design - With a length of 24“ and a height of just 2.5", Fire TV Soundbar fits most entertainment consoles and TV stands.
  • Stream audio with Bluetooth - Connect your phone or tablet via Bluetooth to fill the room with your favorite music.
SaleBestseller No. 6
VIZIO V-Series 2.0 Compact Sound Bar with Dolby Audio, DTS:X, Bluetooth V20x-J8
  • Compact, versatile design – Sleek, rounded all-black finish with easy-to-clean textured surface, optimized for small-med rooms.
  • DTS Virtual:X – Sound Enhancement for room-filling, floor-to-ceiling virtualized sound
  • Full-Range Speakers – 2 full-range speakers in the sound bar provide coherent sound and brilliant clarity.
  • Optimized for 4K HDR Content with Dolby Audio – Bring out the best audio performance from your 4K HDR content with Dolby Audio when connected through HDMI.
  • 70Hz – 20kHz Frequency Response – Wide, natural frequency response means you can hear what the artist intended.
Bestseller No. 7
SAMSUNG HW-C400/EN Sound Bar
  • Samsung Brand Soundbar
  • Color: multicolor
  • Dimensions: 11.8 x 15.7 x 93.2 cm
  • Reference : S9124229
  • If you are looking for quality at the best price, look no further!
SaleBestseller No. 8
Amazon Fire TV Soundbar Plus (newest model) with built-in subwoofer, 3.1 channel, Dolby Atmos, clear...
  • Fire TV Soundbar Plus – Elevate your audio with an all-in-one 3.1 soundbar that’s easy to set up. Featuring built-in bass, crisp dialogue, Dolby Atmos, and DTS:X.
  • Powerful sound with style – Take your entertainment to the next level with incredible sound, clarity, and depth packed into an all-in-one design.
  • Crystal clear dialogue – A dedicated center dialogue channel sharpens conversations so you can catch every moment of your favorite shows.
  • Sound in another dimension – Dolby Atmos features 3D sound that moves around you and clear dialogue. DTS:X delivers multi-dimensional audio for lifelike sound.
  • Easy setup – Connect the included HDMI cable to your TV's HDMI eARC/ARC port and instantly enjoy audio that’s always in sync.
SaleBestseller No. 9
Sony S100F 2.0ch Soundbar with Bass Reflex Speaker, Integrated Tweeter and Bluetooth, (HTS100F),...
  • Straight from the theater to your home: easy set-up, built-in tweeter, 2-ch speaker with simple Bluetooth connection
  • Deep sound with Bass Reflex speaker
  • High power with a slim design that matches any room and is perfect for small living spaces
  • Voice enhancement feature is great for TV content with hushed dialogue, or to make conference call participants easier to hear
  • Easy TV set up with HDMI ARC
SaleBestseller No. 10
Yenjuty Sound Bar, 100W Sound Bar for Smart TV, Bluetooth 5.3 Soundbar, 2 in 1 Detachable Home...
  • ✔️【2-IN-1 Detachable Sound bar】 This soundbar works with TVs, game consoles, and home theaters. Split the soundbar into two tower speakers for 360° surround sound by placing them beside your TV, or combine them into a single fashion bar for compact tabletop or wall-mounted use. Designed to provide a seamless transition between immersive cinematic audio and space-saving, it delivers deep bass and clarity with versatile placement options, great for movie nights, gaming, or music
  • ✔️【Immersive 3D Sound & Deep Bass】 This 100W sound bar packs 6 Audio Sources—2 full-range speakers, 2 tweeters, and 2 bass diaphragms—to deliver room-filling 3D surround sound bass. Perfect for music, movies, or gaming, the soundbar's compact design blends effortlessly into small spaces like living rooms, bedrooms, or offices. Enhance movie effect with cinematic immersion or elevate casual meals with vibrant, room-filling audio clarity
  • ✔️【Bluetooth 5.3 & 5 Connection Methods】Upgraded soundbar Bluetooth 5.3 delivers stable wireless streaming for synced movie/gaming experiences. This Bluetooth speaker delivers high-quality audio to phones, tablets, and TVs. The soundbar provides versatile connectivity: Bluetooth/USB/AUX/Optical/I ARC. You can use the TV remote control to control the soundbar volume in ARC mode. In non-ARC connection mode, you can only use the soundbar's built-in remote control to control volume
  • ✔️【Personalized Audio Modes】This soundbar offers three EQ modes (Music/Movie/Game) to optimize your listening experience. Advanced 3D surround sound technology enriches explosive effects, sound details, and crisp dialogue. Whether watching movies, enjoying live concerts, following sports, or catching up on the news, this home theater sound system delivers enhanced depth and clarity for all your favorite content
  • ✔️【Two Control Methods】Adjust your soundbar using either the included remote or front/top physical buttons. The remote offers precise surround effect customization and volume management. Both methods allow seamless volume control. If the speakers' prompt tone is too loud, press the remote's mute button to silence it instantly. Choose your preferred control style – handheld precision or tactile access – for optimized audio management

You May Also Like…

Rate this post

Last update on 2025-07-10

Leading authority in the field of home theaters and home electronics. With a passion for sharing unique discoveries and personal experiences, I’m dedicated to providing valuable insights to enthusiasts and experts alike.

Through Theater DIY, I continue to be at the forefront of the ever-evolving world of home entertainment, offering expertise that enlightens and inspires.