1. Introduction
Thank you for choosing the Woopker HiFi Bluetooth Amplifier Board. This manual provides detailed instructions for the YS-T50L (2.0 channel) and YS-E30H (2.1 channel) models, designed to deliver high-fidelity sound with rich bass and transparent treble for your home audio systems. Both models feature Bluetooth 5.1 connectivity and support mobile application control for enhanced user experience.
2. Product Overview
2.1 Key Features
- Bluetooth 5.1: Stable and high-quality wireless audio streaming.
- Multiple Audio Inputs: Supports Bluetooth, AUX (3.5mm), USB disk, and USB sound card input (YS-T50L only).
- Mobile APP Control: Visual operation via dedicated APP for volume, sound effects, song control, and settings.
- Tone Adjustment: Independent treble and bass adjustment knobs.
- High Output Power: YS-T50L offers 50W*2; YS-E30H offers 15W*2 + 30W (subwoofer).
- Protection Mechanisms: Electrostatic protection, overcurrent protection, short circuit protection, and overheating protection.
2.2 Package Contents
The package typically includes the following components:
Figure 1: YS-T50L Exploded View Diagram showing components like upper/lower covers, screws, copper columns, amplifier module, and knob caps.
Figure 2: YS-E30H Exploded View Diagram showing components like upper/lower covers, screws, copper columns, amplifier module, knob caps, and DC adapter.
- Bluetooth Power Amplifier Module (YS-T50L or YS-E30H)
- Upper Cover
- Lower Cover
- Knob Caps (3 pcs)
- Screwdriver
- M2*3mm Screws (8 pcs for YS-T50L, 4 pcs for YS-E30H)
- M2*18 Copper Columns (4 pcs for YS-T50L) / M2*16 Copper Columns (4 pcs for YS-E30H)
- M2*4+3 Copper Columns (4 pcs for YS-T50L) / M2*8 Screws (4 pcs for YS-E30H)
- DC Adapter (for YS-E30H, if included)
3. Specifications
3.1 YS-T50L (2.0 Channel)
Figure 3: YS-T50L Product Parameters.
| Parameter | Value |
|---|---|
| Model | YS-T50L |
| Bluetooth Version | 5.1 |
| APP Support | Yes |
| Output Power | 50W * 2 |
| Speaker Impedance | 4-8 Ω |
| Signal to Noise Ratio | 92dB |
| Input Methods | Bluetooth, AUX, USB drive, USB sound card |
| Output Type | Passive speaker + 3.5mm stereo |
| Frequency Range | 20Hz-30KHz |
| Power Supply | DC 5-26V / 5A or above |
| Dimensions (L*W*H) | 84 * 65 * 25mm |
| Weight | 97g |
| Certification | CE |
3.2 YS-E30H (2.1 Channel)
Figure 4: YS-E30H Product Parameters.
| Parameter | Value |
|---|---|
| Model | YS-E30H |
| Bluetooth Version | 5.1 |
| APP Support | Yes |
| Output Power | 15W * 2 (Left & Right) + 30W (Subwoofer) |
| Speaker Impedance (L/R) | 4-16 Ω |
| Speaker Impedance (Subwoofer) | 4-8 Ω |
| Signal to Noise Ratio | 92dB |
| Input Methods | Bluetooth, AUX |
| Output Type | Left and right channels + subwoofer |
| Frequency Range | 20Hz-30KHz |
| Power Supply | DC 9-24V / 3A or above |
| Dimensions (L*W*H) | 73 * 70 * 24mm |
| Weight | 98g |
| Certification | CE |
Important Note for YS-E30H:
- If using a 4 Ω adaptive speaker, the power supply voltage should not exceed 12V.
- If using an 8 Ω adaptive speaker, the power supply voltage should not exceed 24V.
4. Setup Instructions
4.1 Assembly
Refer to the exploded view diagrams (Figure 1 and Figure 2) for assembly. Carefully attach the upper and lower covers to the amplifier module using the provided screws and copper columns. Install the knob caps onto the control shafts.
4.2 Connections
Ensure the amplifier is powered off before making any connections.
Figure 5: YS-T50L Wiring Diagram with labeled ports.
Figure 6: YS-E30H Wiring Diagram with labeled ports.
- Power Supply: Connect a DC power supply (5-26V for YS-T50L, 9-24V for YS-E30H) to the 'DC IN' port. Ensure the power supply meets the specified voltage and current requirements (5A or above for YS-T50L, 3A or above for YS-E30H).
- Speaker Connections:
- YS-T50L: Connect your passive speakers to the 'Right channel' and 'Left channel' output terminals.
- YS-E30H: Connect your left and right speakers to the 'R&L Channel' terminals and your subwoofer to the 'Subwoofer' terminals. Pay attention to polarity (+/-).
- Audio Input:
- Bluetooth: The module will automatically enter Bluetooth pairing mode when powered on.
- AUX Input: Connect an audio source (e.g., phone, computer) using a 3.5mm audio cable to the 'AUX IN' port.
- USB Disk Input (YS-T50L only): Insert a USB flash drive containing audio files into the 'U disk' port.
- USB Sound Card Input (YS-T50L only): Connect the module to a computer via the 'USB sound card' port.
- External Antenna (Optional): If desired, an external 2.4G antenna can be connected to the IPEX Antenna Base for improved Bluetooth range. (Antenna and base need to be purchased separately).
5. Operating Instructions
5.1 Basic Operation
- Power On/Off: Long press the Master Volume knob to turn the amplifier on or off.
- Play/Pause: Short press the Master Volume knob to play or pause audio.
- Volume Adjustment: Rotate the Master Volume knob (360° stepless tuning) to adjust the overall volume.
- Tone Adjustment: Use the 'Treble adjustment' and 'Bass adjustment' knobs to fine-tune the sound.
5.2 Input Mode Selection
The amplifier automatically detects the input source. When multiple sources are connected, you may need to select the desired input via the mobile APP or by disconnecting unused sources.
5.3 Bluetooth Pairing
- Ensure the amplifier is powered on.
- On your mobile device, search for Bluetooth devices.
- Select the amplifier (e.g., "YS Audio" or similar) from the list to pair.
- Once connected, you can stream audio wirelessly.
5.4 Mobile APP Control
The amplifier supports control via a dedicated mobile application (YS Audio APP) for both Android and Apple systems. This allows for visual operation and advanced settings.
Figure 7: Mobile APP Connection Steps.
- Download the APP: Search for "YS Audio APP" in your device's app store and install it.
- Grant Permissions: When using the APP, you need to open all necessary APP permissions in your phone settings. Failure to do so may result in compatibility problems or inability to connect to Bluetooth.
- Add Device: Open the YS Audio APP. Click the "+" icon to add a new device.
- Search and Connect: The APP will search for available devices. Select your amplifier (e.g., "YS Audio") to connect.
- Control Functions: Once connected, you can control various aspects:
- Volume adjustment
- Sound effects (e.g., bass, main, height)
- Up and down song control
- Play/pause
- Play mode selection
- Change Bluetooth name
- Set connection password
- Set shutdown time
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the amplifier board. Do not use liquid cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight, high temperatures, and humidity.
- Avoid Impact: Protect the device from physical shocks or drops.
- Ventilation: Ensure adequate ventilation around the amplifier to prevent overheating, especially during prolonged use.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output |
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| Bluetooth connection fails |
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| Distorted sound |
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| Amplifier overheats |
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8. User Tips
- APP Permissions: For seamless mobile APP control, always ensure that the "YS Audio APP" has all required permissions enabled in your smartphone's settings. This can prevent common connectivity issues.
- Power Supply Matching: Pay close attention to the power supply voltage and current requirements, especially for the YS-E30H model, to match your speaker impedance. Using an incorrect power supply can lead to distortion or damage.
- External Antenna: If you experience limited Bluetooth range, consider purchasing and installing an external 2.4G antenna for improved signal strength.
9. Warranty and Support
The Woopker YS-T50L and YS-E30H amplifier boards are CE certified, indicating compliance with European safety, health, and environmental protection standards.
For specific warranty information, technical support, or service inquiries, please contact your original seller or refer to the product listing where you made your purchase. Keep your purchase receipt as proof of purchase.
