Assistrust KY-8000
Assistrust KY-8000 Sound Bar User Manual
Model: KY-8000
Sound Bar for Smart TV, 80W Soundbar with Bluetooth/ARC/Opt/AUX Connect, Auto Volume Boost, 3 Equalizer Modes, 2 in 1 Detachable Soundbar for TV/PC/Gaming/Projectors
1. Product Overview
The Assistrust KY-8000 Sound Bar is designed to enhance your home audio experience with dynamic sound and versatile placement options. It features 4 high-performance drivers and 80W sound output, delivering rich details and immersive audio for movies, music, and news.
1.1. Key Features
- Automatic Volume Boost: Elevates faint sounds for vibrant audio.
- Versatile Placement: Can be used horizontally, vertically (as two individual units), tabletop, or wall-mounted.
- Powerful Audio: 80W sound output from 4 high-performance drivers.
- 3 Equalizer Modes: Optimized sound profiles for Movie, Music, and News.
- Multiple Connectivity Options: Bluetooth 5.0, ARC (HDMI), Optical, and AUX.
1.2. Controls and Ports
The soundbar features intuitive controls and various ports for seamless integration with your devices.

The Assistrust KY-8000 Sound Bar shown in its full configuration with the remote control and detachable speaker bases.
Video demonstrating the features and connection methods of the Assistrust KY-8000 Sound Bar.
Sound Bar Controls:
- Power Button: Short press to turn on, long press (2 seconds) to turn off. Short press to switch input modes (Bluetooth, HDMI, AUX, Optical).
- Play/Pause Button: Short press to play/pause songs in Bluetooth mode.
- Volume + / Next Button: Short press to increase volume. Long press to skip to the next song.
- Volume - / Previous Button: Short press to decrease volume. Long press to go to the previous song.
Rear Ports:
- DC IN: Power input port.
- OPT: Optical audio input.
- AUX: 3.5mm auxiliary audio input.
- ARC: HDMI Audio Return Channel input.
Remote Control Functions:
- Power: Turns the soundbar on/off.
- BT Mode: Switches to Bluetooth input.
- Mute: Mutes/unmutes the sound.
- Volume +/-: Adjusts the volume level.
- Previous/Next: Skips to previous/next track in Bluetooth mode.
- Play/Pause/Pair: Plays/pauses audio and initiates Bluetooth pairing.
- Music/Movie/News Mode: Selects the desired equalizer preset.
- OPT Mode: Switches to Optical input.
- AUX Mode: Switches to Auxiliary input.
- ARC Mode: Switches to HDMI ARC input.
2. Box Contents
Upon opening the package, ensure all the following items are present:

- Assistrust KY-8000 Sound Bar (main unit)
- Stand Bases (x2)
- Remote Control
- Power Supply Adapter
- ARC (HDMI) Cable
- 3.5mm AUX Audio Cable
- Optical Cable
3. Setup
3.1. Power On
- Connect the power cord to the DC IN port on the back of the soundbar.
- Plug the other end of the power cord into an AC (mains) power outlet. A wall plug is recommended for stable power.

Ensure the power adapter is securely connected to the soundbar and a live power outlet.
3.2. Connecting to Your TV
The KY-8000 Sound Bar supports multiple audio formats and offers various connection methods to your TV:
- HDMI ARC
- Optical
- 3.5mm Auxiliary (AUX)
- Bluetooth
3.2.1. HDMI ARC Mode
- Remove the plastic caps from both ends of the HDMI cable.
- Insert one end of the HDMI cable into the ARC port on the back of the soundbar.
- Insert the other end of the HDMI cable into your TV's HDMI ARC port. (Note: HDMI ARC works only with HDMI ARC ports on your TV. If your TV does not have an HDMI ARC port, use an Optical cable instead.)
- Go to your TV's sound settings, select HDMI ARC as your audio output.
- Find the Digital Sound Out or Digital Audio Format settings in your TV and select PCM or Passthrough.

Connecting the HDMI cable to the soundbar.

Locate the HDMI ARC port on your TV for connection.
If there is no sound after following the HDMI connection instructions, go to your TV settings and enable HDMI-CEC Device Control. This allows your TV remote to control connected CEC-capable HDMI devices.
3.2.2. Optical Mode
- Remove the plastic caps from both ends of the Optical cable.
- Insert one end of the Optical cable into the OPT port on the back of the soundbar.
- Insert the other end into your TV's Optical Digital Audio Out port.
- Go to your TV's sound settings, select Optical as your audio output.
- Find the Digital Sound Out or Digital Audio Format settings in your TV and select PCM or Passthrough.

Connecting the Optical cable to the soundbar.

Locate the Optical Digital Audio Out port on your TV.
3.2.3. AUX Mode
- Insert one end of the 3.5mm auxiliary cable into the AUX port on the back of the soundbar.
- Insert the other end into your TV's 3.5mm headphone port (or AUX Out).
- Go to your TV's sound settings and set Headset or External Speaker as your TV speaker output.

Connecting the AUX cable to the soundbar.
3.2.4. Bluetooth Connection
- Set the soundbar input to Bluetooth connection mode using the power button on the soundbar or the BT Mode button on the remote.
- Turn on the Bluetooth feature on your device (e.g., smartphone, tablet, PC).
- Select "KY-8000" from the list of available Bluetooth devices to pair.
4. Operating
4.1. Equalizer Modes
The soundbar offers three dynamic equalizer modes to optimize your listening experience:
- Movie Mode: Enhances cinematic audio with rich, immersive sound.
- Music Mode: Provides luxurious melodies and balanced audio for music playback.
- News Mode: Optimizes for crystal-clear dialogue, making speech easier to understand.
Use the "MUSIC MOVIE NEWS" button on the remote control to cycle through these modes.

4.2. Volume Boost
The soundbar features an automatic loudness boost function to elevate faint sounds. If the volume is too low after connection, use the volume up button on the soundbar or remote to increase the volume. This ensures a vibrant audio experience even at lower initial levels.
4.3. Placement Options
The 2-in-1 detachable design allows for flexible placement to suit your space and audio needs:
- Horizontal: For distortion-free audio, typically placed below the TV.
- Vertical (as 2 individual units): Spreads more surround sound, ideal for room-filling audio.
- Tabletop: Provides vibrant clarity when placed on a stand or cabinet.
- Wall Mount: Achieves 360° cinematic magic, transforming your room into a personal theater.

5. Maintenance
To ensure the longevity and optimal performance of your Assistrust KY-8000 Sound Bar, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the surface of the soundbar. Do not use liquid cleaners or aerosol sprays, as they may damage the finish or internal components.
- Dust Removal: Regularly dust the speaker grilles to prevent accumulation, which can affect sound quality. A soft brush or compressed air can be used carefully.
- Storage: If storing the soundbar for an extended period, disconnect it from power and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Management: Ensure all cables are neatly organized and not kinked or pinched, which can lead to damage over time.
- Avoid Obstructions: Do not place objects on top of the soundbar or block its vents, as this can lead to overheating.
6. Troubleshooting
If you encounter issues with your Assistrust KY-8000 Sound Bar, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet not active | Ensure power cord is securely plugged into the soundbar and a working power outlet. Try a different outlet. |
| No sound | Incorrect input mode; TV audio settings incorrect; Muted volume | Press the power button or remote input buttons to select the correct input mode (HDMI ARC, Optical, AUX, Bluetooth). Check your TV's audio output settings (e.g., set to HDMI ARC, Optical, or Headset/External Speaker, and PCM/Passthrough). Ensure the soundbar and TV volume are not muted and are turned up. |
| Bluetooth connection issues | Soundbar not in pairing mode; Device out of range; Interference | Ensure the soundbar is in Bluetooth mode. Turn off and on Bluetooth on your device. Move your device closer to the soundbar. Avoid placing the soundbar near other wireless devices that may cause interference. |
| Remote control not working | Dead batteries; Obstruction; Out of range | Replace the remote control batteries. Ensure there are no obstructions between the remote and the soundbar's sensor. Point the remote directly at the soundbar and ensure you are within range. |
| Sound distortion or poor quality | Incorrect audio format; Cable issues; Speaker placement | Ensure your TV's digital audio output is set to PCM or Passthrough. Check if audio cables are securely connected and undamaged. Adjust speaker placement for optimal sound dispersion. |
If the issue persists after trying these steps, please contact customer support for further assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Assistrust |
| Model Name | KY-8000 |
| Speaker Type | Soundbar |
| Sound Output | 80W |
| Frequency Response | 90 Hz - 20 kHz |
| Signal to Noise Ratio | 65 dB |
| Bluetooth Version | 5.0 |
| Connectivity Technology | Bluetooth, Auxiliary, Optical, ARC |
| Surround Sound Channel Configuration | 4.0 |
| Product Dimensions | 17"D x 3.5"W x 2.5"H |
| Item Weight | 6.52 pounds |
| Mounting Type | Tabletop Mount |
| Control Method | Remote |
| Power Source | AC |
| Compatible Devices | Laptop, Projector, Smartphone, Tablet, Television |
8. Warranty and Support
Your satisfaction is our top priority. The Assistrust KY-8000 Sound Bar comes with:
- 18-Month Warranty: Providing peace of mind for your purchase.
- 60-Day Hassle-Free Replacement Policy: Ensuring a smooth exchange process if needed.
- 24/7 Online Tech Support: Top-tier assistance available whenever you need it.
For technical support or warranty claims, please refer to the contact information provided with your product packaging or visit the official Assistrust website.
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