Introduction
Thank you for purchasing the BESTISAN 120W 2.1 Channel Sound Bar System. This manual provides essential information for setting up, operating, and maintaining your new sound system. Please read this manual thoroughly before use to ensure proper operation and to maximize your listening experience.

Image: The BESTISAN 120W 2.1 Channel Sound Bar and its wired subwoofer.
Safety Information
- Do not expose the unit to rain, moisture, or extreme temperatures.
- Ensure proper ventilation around the sound bar and subwoofer.
- Do not block any ventilation openings.
- Use only attachments/accessories specified by the manufacturer.
- Unplug the apparatus during lightning storms or when unused for long periods.
- Refer all servicing to qualified service personnel.
Package Contents
Please check to ensure all items are present in your package:
- Sound Bar
- Wired Subwoofer
- Remote Control
- Power Adapter
- User's Guide
- Digital Optical Cable
- Stereo RCA to 3.5mm Audio Cable
- SUB OUT Cable (for subwoofer connection)

Image: A visual representation of all items included in the product package.
Product Overview
Sound Bar Controls and Remote
The sound bar features integrated controls on its side panel for basic functions, and a comprehensive remote control for full functionality.

Image: Detailed view of the sound bar's side panel controls and the included remote control.
Connectivity Ports
The sound bar offers multiple connectivity options to integrate with various devices.

Image: Visual representation of the various input options available on the sound bar, including Optical, Coaxial, Bluetooth, USB, and AUX.
Setup
Placement
For optimal audio performance, place the sound bar centrally below your television. The subwoofer can be placed on the floor near the sound bar, ensuring it has adequate space for sound dispersion.

Image: The sound bar positioned directly below a television, demonstrating typical placement.
Connecting the Subwoofer
Connect the wired subwoofer to the sound bar using the provided SUB OUT cable. Ensure the connection is secure.
Connecting to Your TV or Audio Source
Choose one of the following connection methods:
- Optical Connection: Use the supplied optical cable to connect the sound bar's OPTICAL IN port to your TV's Optical Out port. This is recommended for high-quality digital audio.
- Coaxial Connection: Use a coaxial cable (not supplied) to connect the sound bar's COAXIAL IN port to your TV's Coaxial Out port.
- AUX Connection: Use the supplied Stereo RCA to 3.5mm audio cable to connect the sound bar's AUX IN port to your TV's 3.5mm audio output or RCA audio outputs.
- USB Connection: Insert a USB drive into the USB port to play audio files directly from the drive.
Power Connection
Connect the power adapter to the DC IN port on the sound bar, then plug the adapter into a wall outlet.
Operating Instructions
Power On/Off
Press the Power button on the remote control or the sound bar to turn the unit on or off.
Input Selection
Press the Input button (OPT, COAX, AUX, USB, BT) on the remote control to switch between different audio sources.
Volume Control
Use the VOL+ and VOL- buttons on the remote or sound bar to adjust the volume level.
Sound Modes (DSP Technology)
The sound bar features Digital Signal Processing (DSP) technology with optimized sound modes for various content types. Press the corresponding button on the remote to select:
- Movie Mode: Enhances cinematic sound, providing crisp and clear audio for films.
- Music Mode: Optimizes audio for music playback, delivering rich and dynamic sound.
- Dialog Mode: Improves vocal clarity, making speech in TV shows and news broadcasts more audible.

Image: A visual representation of the DSP Audio Modes (Movie, Music, Dialog) and their effects on sound.

Image: An illustration highlighting the internal speaker configuration for champion stereo sound.
Bluetooth Pairing
To connect your mobile device via Bluetooth:
- Press the BT button on the remote control to switch to Bluetooth mode. The indicator light on the sound bar will flash.
- Enable Bluetooth on your mobile device and search for "SQ03" or "BESTISAN".
- Select the sound bar from the list of available devices to pair. Once connected, the indicator light will turn solid.
- You can now play audio from your device through the sound bar. The effective range for Bluetooth connection is up to 33 feet (10 meters).

Image: A user's hand holding a smartphone, illustrating the process of connecting to the sound bar via Bluetooth.
Maintenance
To ensure the longevity and optimal performance of your sound bar system:
- Cleaning: Use a soft, dry cloth to clean the surfaces of the sound bar and subwoofer. Do not use liquid cleaners or aerosol sprays.
- Ventilation: Keep the ventilation openings clear of dust and debris.
- Storage: If storing the unit for an extended period, unplug it from the power outlet and store it in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet not active. | Ensure the power cord is securely connected. Try a different power outlet. |
| No sound | Incorrect input selected; Volume too low; Cables not connected properly. | Select the correct input source. Increase the volume. Check all audio cable connections. Ensure TV audio output is set correctly. |
| Bluetooth connection fails | Sound bar not in pairing mode; Device too far; Interference. | Ensure the sound bar is in Bluetooth pairing mode. Move your device closer to the sound bar. Avoid placing the sound bar near other wireless devices. |
| Remote control not working | Batteries are dead or inserted incorrectly; Obstruction between remote and sound bar. | Replace batteries. Ensure line of sight between remote and sound bar. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | SQ03 |
| Speaker Type | Subwoofer (2.1 Channel System) |
| Speaker Maximum Output Power | 120 Watts |
| Connectivity Technology | Bluetooth 5.0, Optical, Coaxial, USB, AUX |
| Wireless Communication Technology | Bluetooth |
| Subwoofer Connectivity Technology | Wired |
| Recommended Uses | Music, Home Theater, Movies |
| Compatible Devices | Laptop, Television, Tablet, Smartphone |
| Control Method | Remote Control |
| Item Weight | 8.82 Pounds |
| Dimensions (Package) | 30.5 x 13 x 9 inches |
| UPC | 680613284600 |
Warranty and Support
BYL provides comprehensive customer support for your product.
- Warranty: This product comes with a Limited Warranty, typically up to 12 months. Please refer to your purchase documentation for specific warranty terms.
- Return Policy: A 30-day free return policy is generally available.
- Customer Service: For any questions, technical support, or warranty claims, please contact BYL customer service. 24/7 E-mail assistance is available.

Image: The BYL Model SQ03 sound bar and subwoofer, designed to deliver enhanced audio.





