Best Soundbar for 70 inch TVs 2018: What’s the Best Soundbar?

If you’re looking for the best soundbar for a 70 inch TVs, you’ve come to the right place.

Soundbars have become immensely popular over the last few years. These compact speaker systems are an easy way to upgrade your TV sound quality for a relatively small cost.

However, there’s a dizzying array of soundbars out there and trying to find the best soundbar for a 70-inch TV can be a challenge. You’ll need to consider costs, soundbar size and whether you want features such as Bluetooth for music streaming.

Thankfully, we’ve pulled together some of the top rated soundbars for 70 inch TVs that are available on the market today.

What Size Soundbar for a 70 inch TV?

Generally, when choosing a soundbar for a 70-inch TV, you want the soundbar’s length to roughly match your TV’s size. This allows for maximum separation of the left and right audio channels, leading to a far better audio experience. The rule of thumb suggests that a 70 inch TV should have a soundbar that’s around 55-60 inches long as a guide.

Unfortunately, as 70 inch TVs are not as common as other large-screen TV sizes, there’s not many choices available for long soundbars for TVs.

If you’re wanting the largest possible soundbar, the 54 inch VIZIO S5430W-C2 54-Inch 3.0 Channel Soundbar is probably the best soundbar for 70 inch TVs due to its large width and support for Dolby technologies. Whilst it’s an older model, it can be picked up quite affordably so it’s an excellent choice for those wanting a soundbar for a large TV.

Best Soundbar for 70 inch TVs 2018

VIZIO S5430W-C2 54-Inch 3.0 Channel Soundbar

Best Soundbar for 70 inch TVs: VIZIO S5439W-C2

Size: 3.1 x 53.7 x 4.2 inches | Weight: 14 pounds | Connectivity: Bluetooth, HDMI, USB


  • Great audio separation thanks to 54” length
  • Impressively loud
  • Various connectivity options including RCA and Optical Audio


  • Some may find bass lacking
  • Remote Display not backlit
  • Awkward to mount

The VIZIO S5439W-C2 is an older soundbar that still packs a punch, though it can be difficult to get a hold of due to its age.

Coming in at a massive 54-inches, it boasts Dolby Digital and DTS Digital Surround decoding, DTS TruSurround to simulate surround sound, and DTS TruVolume which provides maintains constant volume to avoid sudden loudness spikes due to commercials.

An integrated “Deep Bass Module” handles low frequencies without the need for a separate subwoofer – perfect for those tight on space.

There’s also built-in Bluetooth connectivity for streaming music from your smartphone and the remote has a LCD screen to tell you which input you have connected.

It can be placed on your TV stand or wall mounted using the included brackets.

Check Price at Amazon

Sharp HT-SB602 2.1 Channel 310W Bluetooth Sound Bar

Best Soundbar for 70 inch TVs: Sharp HTSB602

Size: 54.5 x 2.7 x 2.9 inches | Weight: 7.9 pounds | Connectivity: Bluetooth, HDMI ARC, Optical, Analog


  • Excellent sound separation thanks to 54-inch width
  • Two HDMI inputs for added flexibility
  • Wireless subwoofer offers improved bass performance


  • Treble-centric sound signature
  • Sound quality not as good as similarly priced soundbars
  • Unattractive LED Display

The Sharp HT-SB602 is another 54-inch soundbar featuring 2.1 channel audio making it a perfect choice for 70-inch TVs thanks to the improved sound separation its width affords.

This slim soundbar features two HDMI inputs (with HDMI ARC), optical audio, and Bluetooth with NFC pairing for streaming music wirelessly from your smartphone or tablet.

Dolby Digital and DTS Digital Surround decoding is supported, potentially offering better audio performance when watching Blurays.

A wireless subwoofer is included for better bass compared to other soundbars designed for 70-inch TVs.

You can use the Sharp HT-SB602 on your TV stand or mount it to your wall.

Check Price at Amazon

VIZIO SB4531-D5 with Smartcast

Best Soundbar for 70 inch TVs: VIZIO SB4531-D5

Size: 2.01 x 45 x 2.05 inches | Weight: 3.64 pounds | Connectivity: Bluetooth, HDMI ARC, Optical, RCA, USB, 802.11n Wifi


  • Supports Google Cast for easy music streaming
  • Wireless subwoofer offers improved bass performance
  • Visio Smart Cast app lets you use your smartphone as a remote


  • Subwoofer is large and bulky
  • Dot-based display difficult to interpret
  • Smaller than other soundbars in this list

The VIZIO SB4531-D5 slightly smaller than some of the other soundbars, coming in at 45” inches. However, it’s the most recent model, offering a number of features over the other soundbars in this list.

Whilst it’s not as long as the other recommended soundbars for 70-inch TVs, the VIZIO SB4531-D5 can output an impressive 104dB via its 4″ speakers whilst its wireless subwoofer handles the bass.

Dolby Technologies including Dolby Digital, DTS Studio Sound, DTS TruSurround, and DTS TruVolume are supported for an optimal audio experience when watching movies.

Music streaming fans are covered thanks to built-in Google Cast support and Bluetooth 4.1 for wireless streaming, or you can plug in a USB to play music files from there.

As with most soundbars, you can use it on a tabletop or mounted on your wall using the included wall mounts.

Check Price at Amazon

Best Soundbar for 70 inch TVs 2018: Conclusion

If you’re looking for the largest possible soundbar, the VIZIO S5439W-C2 is probably the best soundbar for a 70 inch TV.

However, if you’re happy with a slightly smaller soundbar, the VIZIO SB4531-D5 offers far more features for the price.

Have a favorite that I haven’t included in here? Let me know in the comments!


Michael is a technology expert with over 15 years of experience in IT, Home Theatre and Automation. Feel free to send Michael a message here.

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