1. Introduction
The Yamaha YAS-108 Sound Bar is designed to enhance your television's audio experience, providing theater-quality sound for movies, music, and games. Its ultra-slim design allows for discreet placement in front of your TV, on a shelf, or can be rotated for a low-profile wall mount. This sound bar features built-in subwoofers for deep bass and Bluetooth connectivity for wireless audio streaming from compatible mobile devices and Bluetooth-enabled Alexa devices.
Key features include:
- Integrated subwoofers for enhanced bass performance.
- Clear Voice technology for improved dialogue clarity.
- DTS Virtual:X for virtual 3D surround sound.
- Bluetooth streaming with easy switching between two devices.
- Multiple connectivity options: HDMI, Optical, or Aux.

Figure 1.1: Yamaha YAS-108 Sound Bar positioned below a television.
2. What's in the Box
Please verify that all the following items are included in your product packaging:
- YAMAHA YAS-108 Sound Bar
- Remote Control
- Instruction Manual
- Warranty Card
3. Setup
3.1 Placement
The YAS-108 Sound Bar offers flexible placement options:
- On a Shelf/TV Stand: Place the sound bar directly in front of your TV. Ensure it does not obstruct the TV's remote sensor.
- Wall Mounting: The sound bar can be rotated for a low-profile wall mount. Refer to the detailed wall mounting instructions in the separate installation guide (if provided) for secure attachment.

Figure 3.1: Sound bar placed on a TV stand.

Figure 3.2: Sound bar wall-mounted.
3.2 Connections
Connect the sound bar to your television using one of the following methods:
- HDMI (ARC): For optimal audio quality and control, connect an HDMI cable from the sound bar's HDMI OUT (ARC) port to your TV's HDMI ARC port. This allows your TV remote to control the sound bar's power and volume.
- Optical: If your TV does not have an HDMI ARC port, connect an optical digital cable from the sound bar's OPTICAL IN port to your TV's optical digital output.
- Analog (AUX): For devices with analog audio output, connect a 3.5mm stereo mini-jack cable from the sound bar's ANALOG IN port to the device's audio output.

Figure 3.3: Rear panel connections.
3.3 Power Connection
After connecting the audio cables, plug the sound bar's power cord into an AC outlet.
4. Operating the Sound Bar
4.1 Basic Controls
The sound bar can be controlled using the included remote control or the touch-sensitive buttons on the top panel.

Figure 4.1: Top panel controls.

Figure 4.2: Remote control.
- Power: Press the power button on the remote or sound bar to turn it on or off.
- Input Selection: Use the HDMI, TV, ANALOG, or BLUETOOTH buttons on the remote or sound bar to select the desired audio input.
- Volume Control: Adjust the main volume using the VOLUME +/- buttons on the remote.
- Mute: Press the MUTE button to temporarily silence the audio.
- Subwoofer Volume: Adjust the subwoofer level using the SUBWOOFER +/- buttons on the remote.
4.2 Bluetooth Pairing
To stream audio wirelessly from a mobile device:
- Press the BLUETOOTH button on the remote or sound bar to select the Bluetooth input. The Bluetooth indicator will flash.
- On your mobile device, enable Bluetooth and search for available devices.
- Select "YAS-108 Yamaha" from the list of devices.
- Once paired, the Bluetooth indicator on the sound bar will glow steadily.
4.3 Sound Modes
Utilize the following sound modes for an optimized listening experience:
- SURROUND / STEREO: Switch between surround sound and stereo playback.
- 3D SURROUND (DTS Virtual:X): Activates virtual 3D surround sound for an immersive audio experience.
- CLEAR VOICE: Enhances dialogue clarity, making voices easier to hear in movies and TV shows.
- BASS EXTENSION: Boosts low-frequency response for a more impactful bass.
5. Maintenance
To ensure the longevity and optimal performance of your YAS-108 Sound Bar, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the exterior surfaces with a soft, dry cloth. Avoid using abrasive cleaners, waxes, or solvents as they may damage the finish.
- Ventilation: Ensure that the ventilation openings are not blocked. Proper airflow prevents overheating.
- Storage: If storing the unit for an extended period, disconnect it from the power outlet and store it in a cool, dry place.
6. Troubleshooting
If you encounter issues with your sound bar, refer to the following common solutions:
| Problem | Possible Cause / Solution |
|---|---|
| No sound from the sound bar. |
|
| Bluetooth device cannot connect. |
|
| Remote control not working. |
|
| Sound is distorted or unclear. |
|
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | YAS-108 |
| Brand | Yamaha |
| Speaker Maximum Output Power | 120 Watts |
| Connectivity Technology | Bluetooth, HDMI, Optical, Analog |
| Audio Output Mode | Surround |
| Mounting Type | Bar Mount, Wall Mount |
| Speaker Type | Subwoofer (built-in) |
| Additional Features | Bass Boost, DTS Virtual:X, Clear Voice |
| Control Method | Remote Control, Voice Control (via compatible devices) |
| Color | Black |
| Maximum Bluetooth Range | 33 Feet (without obstructions) |
| Item Dimensions (D x W x H) | 5.2"D x 35"W x 2.2"H |
| Item Weight | 7.1 Pounds |
| Compatible Devices | Laptop, MP3 Player, Projector, Smartphone, Tablet, Television |
| Number of Audio Channels | 5.1 (Virtual) |
| Power Source | Corded Electric |
| Remote Battery Type | 1 CR2 battery (required) |
8. Warranty and Support
8.1 Warranty Information
The Yamaha YAS-108 Sound Bar comes with a 1-year limited warranty. Please refer to the included Warranty Card for detailed terms and conditions, including coverage specifics and how to make a claim.
8.2 Customer Support
For further assistance, technical support, or inquiries regarding your product, please contact Yamaha customer support. Contact information can typically be found on the Yamaha official website or on the Warranty Card provided with your product.