VIZIO M51ax-J6 Manual: Comprehensive Guide
This guide details the VIZIO M51ax-J6 setup, connections, Bluetooth pairing, sound customization, and troubleshooting. Access the 48-page manual at VIZIO’s website for complete details!
The VIZIO M51ax-J6 is a 5.1 premium sound bar system designed to deliver immersive audio, featuring Dolby Atmos and DTS:X virtualization. This 2022 model offers wireless subwoofer and satellite speaker connectivity, alongside built-in Alexa compatibility for voice control.
Included in the box are the soundbar itself, a subwoofer, satellite speakers, power cords, a quick start guide, a comprehensive user manual, a remote control, and necessary audio cables. It’s a cost-effective solution for enhancing your home theater experience!
What’s Included in the Box
Upon unboxing your VIZIO M51ax-J6, you’ll find several components. These include the main Soundbar (M51ax-J6), a dedicated Subwoofer for deep bass, and multiple Satellite Speakers to create a surround sound experience.
Essential Included Cables and Accessories are also provided: power cords for each unit, a quick start guide for immediate setup, the full user manual, a remote control for convenient operation, and various audio cables, plus a wall mount bracket and template.
Soundbar (M51ax-J6) Contents
The VIZIO M51ax-J6 soundbar itself is the central component of your audio system. Within the box, you’ll find the soundbar unit, designed for immersive audio. A dedicated power cord is included to ensure reliable operation. The soundbar is crafted to deliver Dolby Atmos and DTS:X virtualized sound, enhancing your viewing experience.
Carefully inspect the soundbar for any physical damage upon unboxing. It’s the core of the 5.1 channel system, providing a premium audio experience.
Subwoofer Contents
The VIZIO M51ax-J6 package includes a wireless subwoofer, designed to deliver deep, resonant bass. A dedicated power cord is provided for the subwoofer, ensuring it receives adequate power. This subwoofer wirelessly connects to the main soundbar unit, simplifying setup and reducing cable clutter.

Inspect the subwoofer for any damage during unboxing. Proper placement is crucial for optimal bass performance, enhancing the overall immersive audio experience.
Satellite Speaker Contents

The VIZIO M51ax-J6 system includes two satellite speakers, crucial for creating a true 5.1 surround sound experience. Each satellite speaker comes equipped with its own speaker wire for a wired connection to the main soundbar. These speakers are designed to deliver clear and detailed mid-range and high-frequency audio.

Carefully unpack the satellite speakers and inspect them for any shipping damage. Proper positioning of these speakers is key to achieving optimal surround sound immersion.
Included Cables and Accessories
The VIZIO M51ax-J6 package contains essential cables for initial setup. You’ll find power cords for the soundbar and subwoofer, alongside various audio cables to connect the soundbar to your TV. A remote control is included for convenient operation, allowing you to adjust volume and settings.
Additionally, the box features a wall mount bracket and template for optional wall mounting. A quick start guide and the comprehensive user manual are also provided for easy installation and operation.

Initial Setup and Connections
Begin by carefully unboxing all components and verifying their presence against the included list; Connect the soundbar to your TV using the provided HDMI or optical cable for optimal audio quality. Ensure all cables are securely connected to avoid signal interruptions.
Refer to the quick start guide for a streamlined setup process. The comprehensive 48-page manual offers detailed instructions and troubleshooting tips for a seamless experience.
Unboxing and Component Check
Carefully open the box and remove all contents. Verify you have the soundbar (M51ax-J6), subwoofer, satellite speakers, power cords, a quick start guide, the user manual, a remote control, and various audio cables. Also, check for the wall mount bracket and template if you plan to wall-mount.
Inspect each component for any visible damage. If anything is missing or damaged, contact VIZIO customer service immediately for assistance and potential replacements.
Connecting the Soundbar to Your TV
Connect the soundbar to your TV using either HDMI ARC (Audio Return Channel) or an optical cable. HDMI ARC is preferred for higher quality audio and simplified control. Ensure your TV’s ARC setting is enabled in its audio output menu.
If using optical, connect the cable to the TV’s optical output and the soundbar’s optical input. Power on both devices. The soundbar should automatically detect the connection and switch to the appropriate input source.
Bluetooth Pairing and Connectivity
The VIZIO M51ax-J6 offers Bluetooth connectivity for wireless audio streaming from compatible devices. To pair, put the soundbar into Bluetooth mode by pressing the Bluetooth button on the remote. Then, select “VIZIO M51ax-J6” from your device’s Bluetooth settings.
Note that this model lacks Wi-Fi, so features like AirPlay 2 or Spotify Connect aren’t available. Manual pairing may be needed if automatic connection fails.
Manual Bluetooth Pairing Process
If automatic pairing fails, initiate manual Bluetooth pairing. First, ensure the soundbar is in Bluetooth mode by pressing the Bluetooth button on the remote control. On your smartphone or tablet, navigate to the Bluetooth settings menu. Scan for available devices and select “VIZIO M51ax-J6” when it appears;
Confirm the pairing request if prompted, and the soundbar will connect. If issues persist, try restarting both the soundbar and your Bluetooth device.
Limitations of Bluetooth Connectivity
The VIZIO M51ax-J6 lacks Wi-Fi, restricting audio casting options. Unlike systems with AirPlay 2 or Chromecast, direct streaming from services like Spotify Connect isn’t supported. Bluetooth range is limited, potentially causing dropouts with distance or obstructions.
Furthermore, Bluetooth offers lower bandwidth than Wi-Fi, potentially impacting audio quality for high-resolution files. Expect a simpler, less feature-rich wireless experience.
Sound Settings and Customization
The VIZIO M51ax-J6 allows users to tailor the audio experience. Adjusting bass and treble levels is straightforward via the remote or soundbar settings. Explore surround sound configuration options to optimize the 5.1 channel output for your room.
Experiment with different sound modes—Movie, Music, Direct—to find the best fit for your content. Fine-tune the audio to achieve a personalized and immersive soundscape.
Adjusting Bass and Treble Levels
The VIZIO M51ax-J6 provides intuitive controls for adjusting bass and treble levels. Use the remote control to navigate to the sound settings menu. Increase or decrease bass for deeper lows, enhancing movie explosions or music rhythms. Similarly, adjust treble for clearer highs, improving dialogue clarity.
Experiment to find the perfect balance, tailoring the sound to your preferences and room acoustics.
Surround Sound Configuration
The VIZIO M51ax-J6 delivers a 5.1-channel surround sound experience. Ensure proper speaker placement for optimal immersion – satellites around the listening area, and the subwoofer strategically positioned. Within the sound settings, configure the surround sound mode to suit your content.
Options may include ‘Direct’, ‘Movie’, or ‘Music’. Adjust speaker levels individually for balanced audio, creating a truly cinematic atmosphere in your home.
Voice Assistant Integration
The VIZIO M51ax-J6 boasts seamless Alexa compatibility, allowing voice control of key functions. Link your VIZIO account within the Alexa app to power on/off, adjust volume, and switch inputs hands-free. Ensure your Alexa device is connected to the same network as the soundbar.
Explore Alexa routines for customized control, enhancing your entertainment experience with simple voice commands. Further details are available in the comprehensive user manual.
Alexa Compatibility Features
With Alexa, control the M51ax-J6 using voice commands. Power the soundbar on/off, adjust the volume up or down, and seamlessly switch between different input sources—all without lifting a finger! Linking your VIZIO account within the Alexa app unlocks these convenient features.
Create custom Alexa routines to automate your entertainment setup. Enjoy a truly hands-free experience, enhancing your viewing and listening pleasure. Consult the user manual for detailed setup instructions.

Troubleshooting Common Issues
Experiencing sound problems? First, verify all cable connections are secure. If no sound outputs, check the TV audio settings and ensure the soundbar is selected as the audio output device. For subwoofer pairing issues, initiate a manual pairing process as detailed in the user manual.
If problems persist, a power cycle of both the soundbar and subwoofer can often resolve connectivity glitches. Refer to page 23 of the manual for further assistance.
No Sound Output Troubleshooting
If you encounter no sound, begin by confirming the soundbar is powered on and the volume isn’t muted. Verify the correct input source is selected on both the soundbar and your TV. Double-check all HDMI or optical cable connections for secure placement.
Ensure your TV’s audio output is set to the soundbar. A power cycle of both devices can often resolve minor glitches. Consult page 23 of the user manual for detailed steps.
Subwoofer Pairing Problems
If the subwoofer isn’t pairing, ensure it’s powered on and within range of the soundbar – ideally within 30 feet with no obstructions. Initiate a manual pairing process by pressing the subwoofer’s pairing button, typically located on the rear panel.
Confirm the soundbar is in pairing mode as well. A reset of the subwoofer may also be necessary; refer to the user manual for specific instructions on resetting the device.
Understanding Dolby Atmos and DTS:X
The VIZIO M51ax-J6 utilizes virtualization to create the immersive experience of Dolby Atmos and DTS:X, without requiring upfiring speakers. This technology processes audio signals to simulate a three-dimensional soundscape.
While not true object-based audio, virtualization enhances spatial awareness. Ensure your source content supports Dolby Atmos or DTS:X for optimal performance and a more captivating listening experience.
Virtualization of Dolby Atmos
The M51ax-J6 employs Dolby Atmos virtualization, a technique that simulates the height channels of Dolby Atmos without dedicated upward-firing speakers. This process intelligently analyzes the audio signal and creates a wider, more immersive soundstage.
It’s important to note this is not the same as true Dolby Atmos with discrete height speakers, but it offers a significant improvement over traditional surround sound, enhancing the sense of depth and realism.
DTS:X Audio Processing
The VIZIO M51ax-J6 also supports DTS:X audio processing, another immersive sound format. Like Dolby Atmos, the M51ax-J6 utilizes virtualization to create a three-dimensional sound experience without requiring up-firing speakers.
DTS:X dynamically allocates audio to the available speakers, optimizing the soundstage based on your room’s configuration. This results in a more enveloping and realistic audio experience, enhancing movies and games.

Remote Control Functions
The VIZIO M51ax-J6 remote provides essential controls for a seamless user experience. Power and volume controls are prominently featured for quick adjustments. Dedicated buttons allow for easy input source selection, switching between HDMI, Bluetooth, and other connected devices.
Additional functions include sound mode selection and access to customizable settings. The remote’s intuitive layout ensures effortless navigation and control of your soundbar’s features.
Power and Volume Controls
The VIZIO M51ax-J6 remote features clearly marked power and volume controls for immediate operation. A dedicated power button allows for quick on/off functionality. Volume adjustment is managed via intuitive up and down buttons, providing precise control over your listening experience.
These controls are centrally located on the remote for easy access, ensuring effortless adjustments without needing to navigate complex menus.
Input Source Selection
The VIZIO M51ax-J6 remote provides straightforward input source selection. Dedicated buttons allow you to cycle through available inputs – such as HDMI, Bluetooth, and AUX – with a single press. This ensures seamless switching between your connected devices.
The current input is clearly displayed on the soundbar’s front panel, offering instant confirmation of your selected source. Enjoy effortless control over your audio connections!
Wall Mounting Instructions
Securely mounting your VIZIO M51ax-J6 requires the included wall mount bracket and template. Carefully follow the manual’s instructions for proper installation, ensuring the bracket is firmly attached to wall studs for stability.
The template guides precise screw placement. Prioritize safety; incorrect mounting could cause damage or injury. Consider professional installation if you’re uncomfortable with this process. Enjoy a clean, immersive audio setup!
Using the Wall Mount Bracket
The VIZIO M51ax-J6’s included bracket allows for secure wall mounting. Attach the bracket to the soundbar using the provided screws, ensuring a snug fit. Then, utilize the wall mount template to mark drill locations on your wall, aligning with studs.
Confirm bracket stability before mounting the soundbar. Double-check all connections after installation. Proper bracket use optimizes audio and saves space!
Wall Mount Template Guidance
The supplied wall mount template is crucial for accurate bracket placement. Align the template with your desired soundbar location, ensuring it’s level. Mark the drill points precisely, prioritizing wall stud locations for maximum support and stability.
Verify measurements before drilling. Incorrect placement can compromise sound quality and wall integrity. Follow the template’s instructions carefully for a secure and aesthetically pleasing installation.
User Manual Overview
The VIZIO M51ax-J6 includes both a quick start guide for immediate setup and a comprehensive 48-page user manual. The quick start guide simplifies unboxing, component connections, and basic operational procedures.
The detailed manual covers advanced features like Dolby Atmos, DTS:X, Bluetooth pairing, troubleshooting, and complete specifications. Download the PDF from VIZIO’s website for in-depth guidance and optimal performance.
Quick Start Guide Highlights

The included quick start guide prioritizes a fast, simple setup experience for the VIZIO M51ax-J6; It focuses on unboxing the components – soundbar, subwoofer, and satellite speakers – and establishing initial connections to your television.
The guide provides step-by-step visual instructions for power connections and basic operation, allowing users to quickly enjoy enhanced audio. It serves as a streamlined introduction before diving into the full user manual.
Comprehensive 48-Page Manual Details
The extensive 48-page user manual for the VIZIO M51ax-J6 provides in-depth coverage of all features and functionalities. It details setup procedures, troubleshooting steps, and explanations of advanced settings like surround sound configuration and voice assistant integration.
The manual thoroughly explains Dolby Atmos and DTS:X virtualization, Bluetooth connectivity, and remote control operations. It serves as a complete reference for maximizing the soundbar’s potential and resolving any operational issues.
Technical Specifications
The VIZIO M51ax-J6 operates on standard power requirements, with specific consumption details outlined in the user manual. Its dimensions and weight are crucial for placement and wall mounting considerations. The soundbar’s specifications include 5.1 channel support, Dolby Atmos and DTS:X virtualization, and Bluetooth connectivity.
Detailed technical data regarding input/output ports, frequency response, and amplifier power are available within the comprehensive manual, aiding informed setup and integration with your home theater system.
Power Requirements and Consumption
The VIZIO M51ax-J6 soundbar and its accompanying subwoofer and satellite speakers require standard AC power. Specific voltage and amperage details are thoroughly documented within the comprehensive user manual for safe and optimal operation. Power consumption varies based on usage, with higher levels during peak audio performance.
Refer to the manual for precise wattage figures for both active and standby modes, enabling users to understand energy usage and plan accordingly. Ensure compatibility with your local power supply.
Dimensions and Weight
The VIZIO M51ax-J6 system comprises several components, each with unique physical specifications. The soundbar’s dimensions are crucial for placement, while the subwoofer and satellite speakers require space considerations. Precise measurements – length, width, and height – are detailed in the user manual.
Weight is also specified for each component, aiding in wall mounting or placement on furniture; Refer to the manual for accurate figures to ensure proper installation and stability, preventing potential hazards.

Firmware Updates
Regular firmware updates are essential for maintaining optimal performance and accessing new features on your VIZIO M51ax-J6. These updates often include bug fixes, improved compatibility, and enhanced audio processing capabilities. Check for available updates through the VIZIO support website or potentially via the soundbar’s settings menu.
Following the provided instructions carefully during the update process is crucial to avoid any interruptions or potential issues. Ensure a stable power supply throughout the update to prevent damage to the system.
Checking for Available Updates
To check for firmware updates for your VIZIO M51ax-J6, navigate to the VIZIO support website (vizio.com) and locate the support section for audio products. Enter the model number (M51ax-J6) to filter the results and find the latest available firmware version. Download the update file and follow the on-screen instructions carefully.
Alternatively, some users report checking directly through the soundbar’s settings, though this method may not always be available. Regular checks are recommended to ensure your system remains up-to-date.
Safety Precautions
Always ensure proper ventilation around the VIZIO M51ax-J6 components to prevent overheating. Avoid placing the soundbar or subwoofer near water or excessive humidity. Do not disassemble or attempt to repair the device yourself; contact VIZIO support for assistance. Keep the power cord away from heat sources and sharp objects.
Use only the provided power adapters and cables. Unplug the device during lightning storms or prolonged periods of non-use. Follow all safety instructions outlined in the user manual.
Important Safety Information
To prevent fire or shock hazards, do not expose the VIZIO M51ax-J6 to rain or moisture. Never use the device near flammable materials. Ensure the power cord is properly grounded. Avoid blocking the ventilation openings. Do not insert objects into the device.
Always unplug the unit before cleaning. Use a soft, dry cloth for cleaning. Refer all servicing to qualified personnel. Read and understand all warnings and instructions before operation.
Warranty Information
VIZIO provides a limited warranty for the M51ax-J6 sound system, covering defects in materials and workmanship. Coverage typically lasts for one year from the date of purchase. To make a claim, retain your proof of purchase and contact VIZIO customer support.
The warranty does not cover damage from misuse, accidents, or unauthorized modifications. See the full warranty details within the comprehensive user manual for specific terms and conditions.
Coverage Details and Claim Process
The VIZIO M51ax-J6 warranty covers parts and labor for one year. It protects against manufacturing defects, not accidental damage or misuse. To file a claim, you’ll need your purchase receipt and a detailed description of the issue;
Contact VIZIO customer service via their website or phone. They may request diagnostic steps or photos before authorizing a repair or replacement. Review the full warranty document for exclusions and limitations.
Where to Find Additional Support
For extensive help, visit the official VIZIO Support Website. There, you’ll discover FAQs, troubleshooting guides, and downloadable manuals, including the comprehensive 48-page M51ax-J6 user manual. Alternatively, connect directly with VIZIO’s Customer Service team.
You can reach them through phone support or online chat for personalized assistance. Be prepared to provide your model number and a detailed description of your issue for efficient support.

VIZIO Support Website
The VIZIO Support Website is a central hub for M51ax-J6 assistance. Here, you can access the downloadable user manual, including the detailed 48-page version, and explore a wealth of FAQs addressing common issues. Troubleshooting guides and setup instructions are readily available.
Additionally, the website provides access to firmware updates and allows you to register your product for warranty benefits. It’s a valuable resource for self-help and resolving technical queries.
Contacting Customer Service
For personalized assistance with your VIZIO M51ax-J6, contacting customer service is a direct route to resolution. While the support website offers extensive resources, direct communication can address unique issues. VIZIO provides various contact methods, including phone support and potentially live chat options.
Be prepared to provide your model number (M51ax-J6) and a detailed description of the problem for efficient support. Check the VIZIO website for the most current contact information and operating hours.
Comparison with M51a-H6 Model
The VIZIO M51ax-J6 is a successor to the M51a-H6, offering a slightly lower price point while maintaining a comparable 5.1-channel surround sound experience. Both models deliver Dolby Atmos and DTS:X via virtualization, but the J6 lacks Wi-Fi connectivity.
This omission means no Apple AirPlay 2, Chromecast, or native streaming via Spotify Connect. The M51a-H6 previously impressed with its value; the M51ax-J6 aims to improve upon that with minor refinements.
Key Differences and Improvements
The primary distinction between the M51ax-J6 and M51a-H6 lies in connectivity; the J6 forgoes built-in Wi-Fi, impacting direct streaming capabilities. Despite this, both soundbars provide immersive Dolby Atmos and DTS:X audio through virtualization technology.
The M51ax-J6 generally offers a slightly reduced price, making it an attractive option for budget-conscious consumers. Improvements are subtle, focusing on potential component refinements rather than substantial feature additions.