SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers
SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers
SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers
SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers
SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers

SB500 43.9" Sound Bar With AccuVoice and Built-In Subwoofers

Regular price $449.99 Sale price$399.99 Save $50.00
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ZVOX’s most performance-driven soundbar with 6-levels of AccuVoice dialogue enhancement


"Best Soundbar for TV dialogue." -CNET's Best Soundbars to Fix Muffled TV Speech in 2025

  • 6 levels of AccuVoice® dialogue boost
  • PhaseCue® room-filling sound from a single aluminum cabinet.
  • Output Leveling (OL) tames loud commercials; enhances low-dialogue parts
  • Dual built-in subwoofers produce great bass without external subwoofer
  • Works with your current remote control
  • Extruded aluminum cabinet enclosure design
  • Inputs: Analog and digital (Optical)
  • Subwoofer output
  • Dimensions: 43.9"W x 3.3"D x 5.7"H
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ZVOX SB500 - High-Performance Dialogue-Enhancing Soundbar

The ZVOX SB500 features three high-performance speakers, dual built-in powered subwoofers, and a 140-watt digital amp inside an aluminum cabinet, it delivers room-filling sound with audiophile precision. Equipped with AccuVoice (6-levels), it's a well-balanced soundbar delivering outsized performance with dialogue enhancement. At just over 3 inches deep, it blends effortlessly into your setup while filling even large spaces with bass as deep as 42 Hz. Sound & Vision Magazine awarded it their coveted “Top Pick.” If you think all sound bars are compromises, the SB500 will change your mind.

Hear Every Word with AccuVoice®


The SB500 offers six levels of voice boost using our patented hearing aid technology. Each new level delivers stronger dialogue emphasis, while minimizing the non-vocal parts of the soundtrack. The results are remarkable. Voices are clear and easy to understand, even at extremely low volumes. You'll hear every word, even on poorly mixed programs or British programs.

High-Performance. Compact Form Factor.

The SB500 uses a high-grade amplifier design and high-grade speakers with extremely accurate frequency response and creates a warm, natural sound and surprisingly powerful bass.

Room-Enveloping Sound
with PhaseCue®

ZVOX's proprietary PhaseCue virtual surround processing gives you rich, three-dimensional sound with movies or music. Sound & Vision magazine calls it "remarkably ingenious."

Output Leveling (OL)

If you’ve ever been jolted by a blaring commercial, you’ll appreciate our Output Leveling (OL) technology. It automatically adjusts the audio to make soft sounds clearer and loud sounds more balanced, reducing sudden volume spikes when switching channels or during commercial breaks.

LED Stealth Display

The SB500 features a four-digit display located behind the speaker grille that shows the current setting for volume, bass, treble and PhaseCue® (virtual surround) - and also shows when you have engaged the Mute, Output Leveling (OL) or AccuVoice (ACCU) features. A few seconds after you stop using your remote (or front panel) controls, the display disappears completely.

Easy to Operate Remote

Remote control uses large buttons with easy to read labels.

Simple Audio Connection

Connect to your TV with Analog (RCA) or Digital (optical). A subwoofer output is provided for external subwoofers.

Place on the wall or in front of your TV

The SB500 offers versatile placement: wall-mount with built-in hanger slots, stand upright, or lay flat in front of your TV for the lowest profile.

Elegant Aluminum Cabinet

The SB500 features an extruded aluminum cabinet that is light but acoustically rigid. Because the cabinet has such thin walls, the internal volume is relatively large – allowing for “big” sound from a slim package.

Product Details

  • Amplifier: high-efficiency 140 watt Class D digital amplifier.
  • Rear inputs: (1) analog stereo input1, (2) optical (Toslink) digital input, (1) Subwoofer Output
  • Frequency range: 42 Hz - 20 kHz
  • Bi-amplified design uses electronic contouring for accurate frequency response.
  • Two 4" subwoofers use a high-mass long-throw design in a ported enclosure.
  • Three 2" main speaker drivers use a long-throw design to create remarkably wide range, accurate sound
  • The SB500 features an extruded aluminum cabinet that is light but acoustically rigid.
  • 100-240 VAC, 50/60 Hz.
  • Dimensions: 43.9" W x 3.3" D x 5.7" H
  • Weight: 12.6 pounds. With box and packing: 18 pounds.

WILL ZVOX WORK WITH MY TV?
ZVOX systems will work with any brand of television provided the TV model in question has either a digital audio output or an analog audio output. 

WILL IT HELP ME WITH MY HEARING PROBLEM?
The majority of customers find that adding a ZVOX system to their TV immediately improves the overall sound quality and dialogue clarity. For our customers with more severe hearing problems, we recommend one of our advanced models with 12 modes of Voice Boost, the AV157 or AV355. Each new level delivers stronger dialogue emphasis, while minimizing the non-vocal parts of the soundtrack. Many people claim they no longer need to use closed-captioning to watch TV. 

CAN YOU PAIR ANOTHER REMOTE TO THE SYSTEM?
Most ZVOX speakers can learn the infrared remote commands of one remote control and can sometimes learn two of the same exact remote depending on the preferred remote model.  If you have a more advanced remote it may have specific alternative instructions than our universal steps.  Follow the link below to our ‘Support’ section of our website and search the preferred remotes make or model and you will see a video instructions. These video shows that whole learning process in real time.

WHAT IS ACCUVOICE?
AccuVoice is the trademarked name for patent-pending technology that lifts voices out of soundtracks to make them clear and understandable. AccuVoice works much like hearing aid technology, but uses a much more advanced processor that is capable of subtle manipulation of sound.
 
WHAT IS SUPERVOICE?
SuperVoice is a new layer of dialog enhancement that the user can add to the existing 6 AccuVoice modes. This is accomplished by pressing and holding the AccuVoice button for about 3 seconds. Each mode is now indicated by “SUP1 - SUP6” on the display. SuperVoice adds more separation between voices and surround/left and right audio signals. Supervoice also adds another layer of compression and leveling that further raises low level voice, while clamping down or lowering high volume speech. This makes dialog stand out even more than with the normal AccuVoice modes.


HOW CAN I HOOK A SUBWOOFER UP TO IT?
If your ZVOX model has a subwoofer output jack on the rear panel, you can connect that to a powered subwoofer. The powered subwoofer would need to have an internal crossover selector, also called a low-pass filter, for filtering out the mid and high frequencies. This is because the subwoofer output jack on the ZVOX is a full range monaural audio output. 


CAN YOU USE WIRELESS HEADPHONES WITH THE ZVOX SYSTEM?
You can use the ZVOX wireless headphones in conjunction with a ZVOX AccuVoice TV speaker with a wireless Bluetooth transmitter, it would connect directly to the ZVOX system or the TVs audio output allowing the audio to transfer to the wireless headphones.

CAN I USE IT AS A CENTER CHANNEL/IN CONJUNCTION WITH A SURROUND SOUND SYSTEM?
No, you cannot. There is no way to integrate an amplified speaker system, like a ZVOX system, into a surround sound audio/video receiver. Those A/V surround sound receivers are made to power non-amplified speakers that use positive and negative speaker wire leads.


HAVE MORE QUESTIONS OR NEED TROUBLESHOOTING?...
If you have additional questions that aren't answered here, please visit our support page for more information or recommendations, or email us at info@zvoxaudio.com for tech support.

When submitting a support ticket on the support page, please provide us with plenty of details including ZVOX model number, the make and model number of the TV, and the connection method

Sound & Vision Magazine gave the SB500 their highest honor—the "Top Pick" Award—saying “It’s a remarkable standalone solution and, given the performance of the integrated subwoofer system and the superb build quality, an excellent value."

"Amazingly box-less, spacious, and resolved. This is no mid-fi soundbar."

—The Absolute Sound Magazine

"The SB500 does produce very good sound indeed, and better value for money than most sound bars we've tested."

—CNET

“I have one word. WOW."

—Don Lindich, San Jose Mercury News

Best Audio Quality Settings

  • Use your TV's Menu to set audio output to "PCM Audio".
  • This is typically found in Menu / Sound / Expert/Additional Settings / Digital Audio Format - choose PCM (or "stereo" or 2 channel").
  • Email info@zvox.com for assistance if required.

Setting Up A ZVOX With Different TV Brands