Onn Soundbar Manual: A Comprehensive Guide (Updated 12/17/2025)
Welcome! This manual provides detailed setup and instructions for your Onn Soundbar, including remote control functions and Bluetooth pairing. Consult your TV’s manual for further assistance.
Congratulations on choosing the Onn Soundbar to enhance your home entertainment experience! This soundbar is designed to deliver immersive audio, bringing your movies, music, and games to life with clarity and power. This comprehensive guide, updated on December 17, 2025, will walk you through every step – from unboxing and setup to advanced features and troubleshooting.
The Onn Soundbar offers a variety of connectivity options, including Optical (Toslink), HDMI ARC, and AUX connections, ensuring compatibility with most modern televisions. Whether you’re looking for a simple plug-and-play solution or want to explore advanced features like Dolby Atmos (model specific) and Bluetooth pairing, this manual has you covered. We’ll also cover the remote control’s functions and how to adjust settings like bass and treble to personalize your sound. Remember to always refer to your TV’s user manual for specific compatibility details.
Understanding Your Onn Soundbar Package Contents
Upon opening your Onn Soundbar package, please verify that all the following components are present. This ensures a smooth setup process and optimal performance. You should find the Onn Soundbar unit itself, designed for sleek integration into your home theater. Also included is a separate Wireless Subwoofer (if your model includes one), providing deep, resonant bass.
Essential for operation, you’ll receive a Power Adapter to connect the soundbar to a power outlet. A dedicated Optical (Toslink) Cable is provided for a digital audio connection to your TV. The package also contains a Remote Control, complete with batteries, allowing convenient control from a distance. Finally, you’ll find this User Manual, offering detailed instructions and troubleshooting tips. If any items are missing or damaged, please contact customer support immediately for assistance.
Safety Precautions and Important Notes
To ensure safe and optimal operation of your Onn Soundbar, please adhere to the following precautions. Avoid placing the soundbar in direct sunlight or near heat sources, as this may cause damage. Do not expose the device to excessive moisture or liquids. Ensure adequate ventilation around the soundbar; do not obstruct the vents.
Never attempt to disassemble or repair the soundbar yourself; refer all servicing to qualified personnel. Use only the provided Power Adapter; using an incorrect adapter may cause damage or pose a fire hazard. Keep the soundbar and its accessories out of reach of small children. This device is not intended for use as a hands-free device. Always disconnect the power cord during lightning storms or prolonged periods of non-use. Follow all local regulations regarding the disposal of electronic waste.

Setting Up Your Onn Soundbar
Begin by carefully unpacking your Onn Soundbar and preparing for connection to your TV using Optical, HDMI ARC, or AUX cables for optimal audio.
Placement and Ventilation Guidelines
Optimal placement is crucial for maximizing your Onn Soundbar’s performance. Position the soundbar on a stable, level surface, ensuring it’s centered relative to your television. Avoid placing the soundbar inside enclosed spaces, such as cabinets, as this can impede sound quality and potentially cause overheating.
Ventilation is key. Maintain at least 4 inches of clear space around the sides, top, and rear of the soundbar to allow for adequate airflow. Do not cover the soundbar with any materials like tablecloths or curtains. Proper ventilation prevents the unit from overheating, ensuring longevity and consistent audio output.
Consider the room’s acoustics. Hard surfaces can reflect sound, while soft furnishings absorb it. Experiment with placement to find the sweet spot that delivers the best sound experience for your specific room layout. Avoid direct sunlight exposure.

Connecting the Power Adapter
Powering your Onn Soundbar is a straightforward process. Locate the DC-IN port on the rear panel of the soundbar. Connect the provided power adapter firmly into this port. Ensure the connection is secure to prevent interruptions during use.
Plug the power adapter into a standard wall outlet. Verify that the outlet is functioning correctly. Avoid using extension cords or power strips if possible, as they can sometimes limit the power supply. The soundbar does not have a built-in battery and requires a constant power source to operate.
Initial power-up may take a few seconds. Once connected, the soundbar’s power indicator light should illuminate, signifying it’s receiving power. If the light doesn’t illuminate, double-check all connections and the outlet.
Connecting to Your TV: Optical (Toslink) Connection
Optical (Toslink) connection delivers high-quality digital audio. Locate the Optical OUT port on your TV – consult your TV’s user manual for its exact location. Take the included optical cable and securely connect one end to your TV’s Optical OUT port.
Connect the other end of the optical cable to the Optical IN port on the rear of your Onn Soundbar. Ensure a snug fit at both ends. Important: Remove any protective caps from the cable ends before connecting.
On your TV, navigate to the audio settings menu. Select “Optical” or “Toslink” as the audio output source. You may need to adjust the TV’s audio format settings (PCM, Dolby Digital) for optimal sound. Power on your soundbar and select the corresponding input source on the soundbar itself.
Connecting to Your TV: HDMI ARC Connection
HDMI ARC (Audio Return Channel) offers a simplified connection and supports advanced audio formats. Locate the HDMI port labeled “ARC” on your TV – refer to your TV’s user manual for its specific location. Use a high-speed HDMI cable (not always included) to connect this ARC port on your TV to the HDMI ARC port on the rear of your Onn Soundbar.
On your TV, enable HDMI ARC functionality within the audio settings menu. This may be labeled as “HDMI Control,” “ARC,” or similar. Select HDMI ARC as the audio output source. Power on your soundbar and select the HDMI ARC input source on the soundbar.
Your TV should automatically detect the soundbar. Consult your TV’s manual for detailed instructions on enabling ARC functionality.
Connecting to Your TV: AUX Connection
The AUX (auxiliary) connection provides a basic audio link using a 3.5mm audio cable. Locate the AUX output port on your TV – consult your TV’s user manual for its exact location, as it varies by model. Obtain a standard 3.5mm audio cable (not always included) and connect one end to the AUX output on your TV.
Connect the other end of the 3.5mm cable to the AUX input port on the rear of your Onn Soundbar; Power on both your TV and the soundbar. On the soundbar, select the AUX input source using the remote control or the soundbar’s control panel.

Adjust the volume on both your TV and the soundbar to achieve your desired listening level. Ensure the TV’s audio output is set to utilize the AUX connection.

Using Your Onn Soundbar
Enjoy immersive audio! Control power, volume, and sound modes with the remote. Bluetooth pairing enables wireless music streaming for a versatile experience.
Powering On/Off and Volume Control
Powering On: To activate your Onn Soundbar, press the power button located on the unit itself or on the remote control. A confirmation indicator light will illuminate, signifying the system is active and ready for use. Ensure the power adapter is securely connected for proper operation.
Powering Off: To deactivate the soundbar, press the power button again. The indicator light will turn off, confirming the system is in standby mode. Disconnecting the power adapter will completely cut off power consumption.
Volume Adjustment: Increase or decrease the audio level using the volume buttons on the soundbar or the remote. Short presses adjust the volume incrementally, while holding the buttons provides continuous adjustment. Be mindful of your listening environment and adjust the volume to a comfortable level. Consult your TV’s user manual for additional volume control options.
Remote Control Overview and Functions
Your Onn Soundbar’s remote control provides convenient access to all system features. The power button controls on/off functionality, while dedicated volume up/down buttons adjust the audio level. Input selection buttons allow you to switch between connected devices – Optical, HDMI ARC, and AUX.

A dedicated mute button instantly silences the audio output. Sound mode buttons cycle through preset audio profiles like Movie, Music, and Dialogue, optimizing the sound for different content. The remote also features bass and treble adjustment controls for personalized sound tuning.
For Bluetooth connectivity, use the pairing button to initiate device discovery. Refer to the manual for specific button layouts and functions, as variations may exist between models. Ensure proper battery installation for optimal performance.
Bluetooth Pairing and Usage
To connect your devices via Bluetooth, first, ensure your Onn Soundbar is in pairing mode – typically activated by pressing and holding the Bluetooth button on the remote control. Your soundbar will then become discoverable. On your smartphone, tablet, or other Bluetooth-enabled device, navigate to the Bluetooth settings menu and scan for available devices.
Select “Onn Soundbar” from the list of discovered devices. If prompted, enter the pairing code “0000”. Once connected, you can stream audio wirelessly from your device. The soundbar remembers paired devices for future automatic connections.

Bluetooth range is approximately 30 feet. Obstructions may reduce this range. For optimal performance, keep the soundbar and your device within clear line of sight. Consult the manual for troubleshooting Bluetooth connection issues.
Sound Mode Selection (Movie, Music, Dialogue, etc;)
Your Onn Soundbar offers several pre-set sound modes optimized for different listening experiences. These modes can be selected using the “Sound Mode” button on the remote control. Available modes typically include “Movie,” “Music,” “Dialogue,” and potentially others like “News” or “Night Mode.”
“Movie” mode enhances bass and dynamic range for immersive cinematic sound. “Music” mode provides a balanced audio profile ideal for enjoying your favorite tunes. “Dialogue” mode clarifies vocal frequencies, making speech easier to understand – perfect for podcasts or talk shows. Experiment with each mode to find the setting that best suits your content.
The selected sound mode is usually indicated on the soundbar’s display. Refer to your manual for a complete list of available modes and their specific characteristics.
Adjusting Bass and Treble
Fine-tune your audio experience with the Onn Soundbar’s bass and treble controls. These adjustments allow you to customize the sound to your personal preferences and the acoustics of your room. Use the “Bass +” and “Bass -” buttons on the remote control to increase or decrease the low-frequency response. Similarly, the “Treble +” and “Treble -” buttons control the high-frequency range.
Start with moderate adjustments and listen carefully to the changes. Increasing bass can add depth and impact to music and movies, while boosting treble can enhance clarity and detail. Be cautious not to overemphasize either frequency, as this can lead to distorted or unbalanced sound.
The soundbar’s display will typically show the current bass and treble levels. Experiment to find the optimal settings for your listening enjoyment.

Troubleshooting Common Issues
Experiencing problems? This section addresses common issues like no sound, Bluetooth connectivity, remote control malfunctions, and distorted audio—find quick solutions here!
No Sound Output
Problem: If you’re experiencing absolutely no sound from your Onn Soundbar, systematically check several key areas. First, ensure the soundbar is powered on and the volume isn’t muted or set too low. Verify the power adapter is securely connected to both the soundbar and a working electrical outlet.
Next, confirm the correct input source is selected on both the soundbar and your TV; Double-check the Optical (Toslink), HDMI ARC, or AUX cable connections, ensuring they are firmly plugged into the appropriate ports on both devices. Consult your TV’s user manual for specific audio output settings.
If using Bluetooth, confirm the soundbar is properly paired with your source device and the volume is audible on that device. Finally, test with a different audio source to isolate whether the issue lies with the soundbar itself or the original source.
Bluetooth Connection Problems
Experiencing Bluetooth difficulties? First, ensure Bluetooth is enabled on both your Onn Soundbar and the source device (smartphone, tablet, etc.). Verify the soundbar isn’t already connected to another device, as it can typically only maintain one active Bluetooth connection at a time. If previously paired, try “forgetting” or unpairing the soundbar from your device’s Bluetooth settings and then re-pairing.
Bring the source device closer to the soundbar during the pairing process to minimize interference. Ensure there are no significant obstructions (walls, large metal objects) between the devices. If the connection repeatedly drops, try restarting both the soundbar and your source device.
Check for software updates for both devices, as these often include Bluetooth connectivity improvements. Finally, confirm the source device’s volume is turned up.
Remote Control Not Working
Is your remote unresponsive? Begin by ensuring the batteries are fresh and correctly installed, observing proper polarity (+/-). Aim the remote directly at the Onn Soundbar’s sensor, ensuring there’s a clear line of sight – obstructions can interfere with the signal. Try replacing the batteries with a brand-new set, even if the current ones seem to have some charge.
If the issue persists, attempt to reset the remote by removing the batteries for several minutes, then reinserting them. Check for any physical damage to the remote itself. Some Onn Soundbar models may require initial pairing of the remote; consult the main manual for specific pairing instructions.
Ensure nothing is pressing any of the buttons on the remote. If still failing, contact customer support.
Distorted Sound
Experiencing crackling, buzzing, or generally distorted audio? First, lower the volume on both the Onn Soundbar and your connected TV. Excessive volume levels can cause distortion. Verify the audio cable (Optical, HDMI ARC, or AUX) is securely connected at both ends – a loose connection can introduce interference.
Experiment with different sound modes (Movie, Music, Dialogue) using the remote; some modes may exacerbate distortion depending on the audio source. Adjust the bass and treble settings to find a balanced sound profile. If using Bluetooth, ensure your source device isn’t too far from the soundbar, as range limitations can affect audio quality.
Try a different audio source to isolate whether the problem lies with the soundbar or the original content.
Soundbar Not Powering On
Is your Onn Soundbar completely unresponsive? Begin by verifying the power adapter is firmly plugged into both the soundbar and a functioning wall outlet. Test the outlet with another device to confirm it’s providing power. Inspect the power adapter cable for any visible damage – frays or kinks could indicate a fault.
If using a power strip or surge protector, ensure it’s switched on and functioning correctly. Try bypassing the power strip and plugging the soundbar directly into the wall. A brief power cycle can sometimes resolve issues; unplug the soundbar for 60 seconds, then plug it back in.
Consult the warranty information for potential replacement options if these steps fail.

Advanced Features & Specifications
Explore Dolby Atmos (model specific), wireless subwoofer pairing, and firmware update procedures. Detailed power, dimension, and warranty details are also included here.
Dolby Atmos Support (If Applicable ⎯ Model Specific)
Immersive Audio Experience: If your Onn Soundbar model supports Dolby Atmos, prepare for a truly captivating audio experience. This technology delivers multi-dimensional sound, creating a realistic and enveloping atmosphere. Sound appears to come from all directions, including overhead, enhancing movies, games, and music.
Compatibility is Key: To fully utilize Dolby Atmos, ensure your source content (Blu-ray discs, streaming services) is encoded with Dolby Atmos. Your TV must also support Dolby Atmos pass-through via HDMI eARC (enhanced Audio Return Channel). Consult your TV’s manual for specific instructions on enabling eARC.
Configuration: Within the soundbar’s settings, verify that Dolby Atmos is enabled. The soundbar will automatically detect and decode Dolby Atmos signals when available. Experiment with different sound modes to optimize the experience for your listening environment. Enjoy the heightened realism and detail that Dolby Atmos provides!
Wireless Subwoofer Pairing (If Applicable)
Seamless Bass Integration: If your Onn Soundbar includes a wireless subwoofer, pairing is typically automatic upon initial power-up. However, if the connection is lost or unstable, a manual pairing process is required for optimal performance. This ensures deep, resonant bass that complements the soundbar’s audio output.
Pairing Procedure: Locate the pairing button on the back of the subwoofer. Press and hold this button until the indicator light begins to flash rapidly. Then, on the soundbar itself, navigate to the subwoofer settings within the menu and initiate the pairing mode. The soundbar will search for and connect to the subwoofer.
Troubleshooting: If pairing fails, ensure the subwoofer is within range of the soundbar and free from obstructions. Restarting both devices can also resolve connectivity issues. Refer to the manual for specific indicator light meanings and further troubleshooting steps.
Firmware Updates and How to Apply Them
Maintaining Optimal Performance: Regularly updating your Onn Soundbar’s firmware ensures access to the latest features, bug fixes, and performance improvements. These updates enhance audio quality, compatibility, and overall system stability. Check the manufacturer’s website periodically for available updates.
Update Methods: Firmware updates can typically be applied via USB or over-the-air (OTA) if your soundbar is connected to a network. For USB updates, download the firmware file to a USB drive and insert it into the soundbar’s USB port. Follow the on-screen prompts to initiate the update process;
Important Precautions: During the update, do not power off the soundbar or disconnect the USB drive. Interrupting the update can cause permanent damage. The soundbar will automatically restart upon completion.
Technical Specifications (Power, Dimensions, etc.)
Power Specifications: The Onn Soundbar operates on a standard 100-240V AC power supply, with a power consumption of approximately 60W (typical usage). Standby power consumption is less than 0.5W, promoting energy efficiency.
Physical Dimensions: The soundbar itself measures approximately 36 inches (width) x 2.5 inches (height) x 4 inches (depth). The wireless subwoofer (if included) typically measures 8 inches (width) x 12 inches (height) x 8 inches (depth). Weight varies by model, but averages around 6-10 lbs for the soundbar and 8-12 lbs for the subwoofer.
Connectivity: Features include HDMI ARC, Optical (Toslink), and AUX inputs. Bluetooth version is typically 5.0, offering a stable wireless connection. Supported audio formats include Dolby Digital and DTS.
Warranty Information and Support Contact
Warranty Coverage: Your Onn Soundbar is covered by a one-year limited warranty against defects in materials and workmanship from the date of purchase. This warranty does not cover damage resulting from misuse, accidents, or unauthorized modifications.
Claim Process: To initiate a warranty claim, please retain your original proof of purchase and contact Onn customer support. You may be required to provide photos or videos demonstrating the issue. Shipping costs for returning the product may apply.
Support Contact: For assistance with setup, troubleshooting, or warranty inquiries, please visit our website at [insert website address here] or call our customer support line at 1-888-516-2666. Our support team is available Monday through Friday, 9 AM to 6 PM EST.