Introduction
The Hisense HS312 3.1 channel soundbar and wireless subwoofer system is designed to enhance your television audio experience. This system features 300 watts of sound output, Dolby Atmos compatibility, and a 6-speaker array for immersive audio. Multiple connectivity options, including HDMI (eARC) and Bluetooth, allow for versatile use with various media devices.
What's in the Box
- Sound bar
- Subwoofer
- Remote
- Power cord and cables
- Wall mount kit
Product Overview

Image: The Hisense HS312 sound bar and its accompanying wireless subwoofer, showcasing their sleek black design.

Image: Diagram highlighting key features: HDMI ARC, Bluetooth, 300W Total Output Power, and Dolby Atmos, with the sound bar and subwoofer.

Image: Detailed dimensions of the sound bar (38.6 inches long, 2.4 inches high, 3.5 inches deep) and subwoofer (9.4 inches wide, 16.5 inches high, 9.4 inches deep).

Image: Close-up top view of the sound bar showing integrated control buttons for power, input, Bluetooth, volume down, and volume up.

Image: Rear view of the sound bar displaying various input ports: USB, Line In, Coaxial, HDMI In, HDMI Out (eARC), and Optical.

Image: The remote control for the Hisense HS312 sound bar, featuring buttons for power, source, volume, EQ modes, bass, treble, and dimmer.

Image: The Hisense HS312 wireless subwoofer, a compact black unit designed to deliver deep bass.

Image: Rear view of the wireless subwoofer, showing the power input and a 'PAIR' button for wireless connection.
Setup
1. Placement
Position the sound bar centrally below your television. The wireless subwoofer can be placed anywhere in the room, ideally where bass response is optimal, without the need for direct cable connection to the sound bar.

Image: Depicts flexible installation options: built-in to a cabinet, on top of a media console, or wall-mounted.
2. Power Connection
- Connect the power cord to the sound bar and then to a power outlet.
- Connect the power cord to the wireless subwoofer and then to a power outlet. The subwoofer will automatically pair with the sound bar.
3. Connecting to TV
For optimal audio quality, use the HDMI (eARC) connection. Alternatively, an optical cable can be used.

Image: Diagram illustrating easy connectivity via HDMI, showing the HDMI cable connecting the sound bar to a TV.
- HDMI (eARC) Connection: Connect one end of the HDMI cable (included) to the HDMI OUT (eARC) port on the sound bar and the other end to the HDMI (eARC) port on your TV.
- Optical Connection: Connect one end of the optical cable (included) to the OPTICAL port on the sound bar and the other end to the optical output port on your TV.
Operating
1. Power On/Off
Press the Power button on the sound bar or remote control to turn the unit on or off.
2. Source Selection
Press the Source button on the remote or the input button on the sound bar to cycle through available input sources (HDMI, Optical, Bluetooth, USB, Line In, Coaxial).
3. Volume Adjustment
Use the VOL+ and VOL- buttons on the remote or the sound bar to adjust the volume level.
4. Bass and Treble Control
Use the BASS and TREBLE buttons on the remote to fine-tune the audio output.
5. Roku TV Ready
If connected to a Roku TV via HDMI (ARC), the Roku TV remote can control both the TV and the sound bar for simplified operation.
Connectivity
1. Bluetooth Pairing
Press the Bluetooth button on the remote or sound bar to enter Bluetooth pairing mode. Select "Hisense HS312" from your device's Bluetooth settings to connect.

Image: Illustration of the sound bar wirelessly streaming audio from various devices like smartphones, tablets, and laptops via Bluetooth.
2. 4K Pass-Through
The sound bar supports 4K Pass-Through with HDR signals, ensuring a seamless 4K viewing experience when connected to compatible devices.

Image: A TV displaying 4K content with the sound bar positioned below, indicating 4K Pass-Through capability.
Audio Modes
The remote control features Quick Touch EQ Modes to optimize sound for different content types:

Image: Visual representation of various audio enhancement modes: Music Mode, Movie Mode, Late Night Mode, News Mode, and Sports Mode.
- Music Mode: Optimized for music playback.
- Movie Mode: Enhances cinematic audio for movies.
- News Mode: Improves vocal clarity for news and dialogue.
- Night Mode: Adjusts audio for late-night listening, reducing loud bursts.
- Sport Mode: Tailored for sports broadcasts.
Specifications
| Brand | Hisense |
| Model Name | HS312 |
| Speaker Type | Soundbar |
| Connectivity Technology | Wireless, Bluetooth |
| Audio Output Mode | Multiple |
| Speaker Maximum Output Power | 300 Watts |
| Surround Sound Channel Configuration | 3.1 |
| Special Feature | Bass Boost, Dolby Enabled, Subwoofer Bluetooth Dolby Enabled |
| Recommended Uses For Product | For Televisions |
| Compatible Devices | Television |
| Subwoofer Diameter | 9.4 Inches |
| Color | Black |
| Product Dimensions | 42"D x 14"W x 11"H |
| Item Weight | 26 Pounds |
| Control Method | Remote |
| Bluetooth Range | 10 Meters |
| Mounting Type | Wall Mount |
Maintenance
- Cleaning: Use a soft, dry cloth to clean the surfaces of the sound bar and subwoofer. Avoid using liquid cleaners or solvents.
- Ventilation: Ensure proper ventilation around both units to prevent overheating. Do not block any ventilation openings.
- Power Cables: Regularly check power cords for any damage. Disconnect from the power outlet if not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected or outlet not active. | Ensure power cords are securely plugged into both the sound bar/subwoofer and a working power outlet. |
| No sound | Incorrect input source selected, volume too low, or cables not connected properly. | Select the correct input source. Increase volume. Check HDMI or Optical cable connections. |
| Subwoofer not pairing | Subwoofer is too far from the sound bar or interference. | Move the subwoofer closer to the sound bar. Press the 'PAIR' button on the back of the subwoofer to re-initiate pairing. |
| Sound distortion | Volume too high or audio source quality is low. | Reduce the volume. Try a different audio source to check if the issue persists. |
| Sound bar automatically turns off | Auto-standby feature activated due to inactivity. | This is a power-saving feature. Ensure continuous audio playback or adjust TV settings to prevent the sound bar from entering standby mode. |
Official Product Videos
Video: An official product video from Hisense showcasing the HS312 Sound Bar with Wireless Subwoofer, highlighting its features and design. This video demonstrates the product's capabilities and ease of use.
Warranty and Support
The Hisense HS312 Sound Bar comes with a Limited Warranty. For detailed warranty information, please refer to the warranty card included in the product packaging or visit the official Hisense website. For technical support, troubleshooting assistance, or service inquiries, please contact Hisense customer support.
You can find additional support and contact information on the Hisense Store on Amazon.





