WOOPKER BT-298 Pro
WOOPKER BT-298 Pro Audio Amplifier User Manual
Model: BT-298 Pro
Brand: WOOPKER
1. Introduction
The WOOPKER BT-298 Pro is a versatile Bluetooth 5.0 HiFi Stereo Audio Amplifier designed for various audio applications, including home, car, bar, and party settings. It features multiple input options such as Bluetooth, RCA, USB, SD/TF card, and microphone inputs, providing flexibility for connecting different audio sources. This amplifier delivers a rated power of 50W x 2 (RMS) and supports passive speakers with 4-16 ohm impedance, along with active subwoofers. Its compact design and comprehensive controls make it an ideal solution for enhancing your audio experience.

Figure 1.1: Front view of the BT-298 Pro Audio Amplifier with its remote control.
2. Package Contents
Please check the box for the following items:
- 1 x BT-298 Pro Amplifier
- 1 x Remote Controller
- 1 x Power Supply (12V 5A)
- 1 x User Manual

Figure 2.1: Contents included in the BT-298 Pro package.
3. Product Features
- High Power Output: RMS 50W x 2 channels, with a peak power of 400W x 2, suitable for 4-16 ohm speakers.
- Bluetooth 5.0 Connectivity: Seamless wireless connection to smartphones, tablets, and other Bluetooth-enabled devices.
- Multiple Audio Inputs: Supports RCA, USB, SD/TF card, AUX, and two microphone inputs for versatile connectivity.
- Comprehensive Controls: Features independent controls for Treble, Bass, Echo, Microphone Volume, and Master Volume.
- Digital Display: Provides clear indication of the current mode (e.g., "BLUE" for Bluetooth).
- Infrared Remote Control: Allows convenient operation from a distance.
- Compact Design: Suitable for various environments including home, car, and portable setups.
4. Specifications
| Parameter | Value |
|---|---|
| Model Number | BT-298 Pro |
| Input Voltage | AC 110V / 12V DC 5A |
| Impedance | 4-8Ω |
| RMS Power | 50W x 2 |
| Peak Power | 400W x 2 (Max 600W Output) |
| SNR | >92db |
| Distortion Rate | <0.2% |
| Channel | 2 Channel |
| Dimensions (L x W x H) | 180mm x 137mm x 55mm (approx. 7.08 x 5.39 x 2.16 inches) |
| Weight | Approx. 9.6 ounces |

Figure 4.1: Physical dimensions of the BT-298 Pro amplifier.
5. Setup
5.1 Connecting Speakers
Connect your passive speakers to the speaker output terminals on the rear panel of the amplifier. Ensure correct polarity (positive to positive, negative to negative) for each channel (Left and Right). The amplifier supports speakers with an impedance of 4-16 ohms.
5.2 Connecting Audio Sources
The BT-298 Pro offers multiple input options:
- RCA Input: Use an RCA audio cable to connect devices like CD players, DVD players, TVs, or PCs to the "AUDIO INPUT" RCA ports on the rear panel.
- USB/SD/TF Card: Insert a USB drive or SD/TF card into the respective slots on the front panel for direct media playback.
- Microphone Input: Connect dynamic microphones to the MIC1 or MIC2 ports on the front panel.
5.3 Power Connection
Connect the provided 12V 5A DC power supply to the "DC 12V/5A" input on the rear panel. For AC power, connect the power cable to the AC 110V/220V input. Ensure the power switch is in the OFF position before connecting power.

Figure 5.1: Rear panel connections for speakers, audio input, and power.

Figure 5.2: Detailed view of front panel controls and rear panel connections.
6. Operating Instructions
6.1 Power On/Off
Flip the power switch on the rear panel to the "ON" position to power on the amplifier. The digital display on the front panel will illuminate. To power off, flip the switch to "OFF".
6.2 Input Mode Selection
Press the "MODE" button on the front panel or the remote control to cycle through available input modes: Bluetooth (BLUE), AUX/RCA (LINE), USB, and SD/TF card.
6.3 Bluetooth Operation
- Switch the amplifier to "BLUE" mode using the MODE button. The display will show "BLUE".
- On your device (smartphone, tablet), enable Bluetooth and search for "BT-298 Pro".
- Select "BT-298 Pro" to pair. Once paired, the amplifier will indicate a successful connection.
- Begin playing audio from your device.
Note: Maintain a distance within 16.4ft (5m) between the device and amplifier for optimal Bluetooth connection without obstructions. For TV or PC connections, keep the distance within 6.5ft (2m).
6.4 USB/SD/TF Card Playback
Insert a USB drive or SD/TF card containing audio files into the corresponding slot. The amplifier will automatically switch to USB/SD mode and begin playback. Use the playback controls (Previous, Play/Pause, Next) on the front panel or remote.
6.5 Microphone Usage (Karaoke)
Connect up to two dynamic microphones to the MIC1 and MIC2 ports. Adjust the "MIC VOL" knob to control microphone volume and the "ECHO" knob for echo effect. This feature is ideal for karaoke or announcements.

Figure 6.1: The BT-298 Pro amplifier in a karaoke setup.
6.6 Audio Adjustment
Use the following knobs on the front panel to fine-tune your audio:
- Master Volume: Controls the overall output volume.
- Treble Control: Adjusts the high-frequency response.
- Bass Control: Adjusts the low-frequency response.
- Echo Control: Adjusts the echo effect for microphones.

Figure 6.2: Wide range of applications for the BT-298 Pro amplifier.
7. Maintenance
To ensure the longevity and optimal performance of your BT-298 Pro amplifier, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the exterior of the amplifier. Do not use liquid cleaners or abrasive materials, as they may damage the finish or internal components.
- Ventilation: Ensure the amplifier has adequate ventilation. Do not block the ventilation holes on the sides or top of the unit. Avoid placing it in enclosed spaces that can trap heat.
- Environment: Keep the amplifier away from direct sunlight, heat sources, excessive dust, moisture, and corrosive substances.
- Power Off When Not in Use: If the amplifier will not be used for an extended period, power it off and unplug it from the power source.
- Handle with Care: Avoid dropping or subjecting the amplifier to strong impacts.
8. Troubleshooting
This section addresses common issues you might encounter with your BT-298 Pro amplifier.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; Power switch off; Faulty power supply. | Ensure power cable is securely connected. Turn power switch ON. Test with a different power outlet or power supply if available. |
| No sound output | Incorrect input mode; Speaker wires loose/incorrectly connected; Volume too low; Faulty audio source. | Select correct input mode. Check speaker wire connections and polarity. Increase Master Volume. Test with a different audio source. |
| Bluetooth connection issues | Device too far; Obstructions; Amplifier not in Bluetooth mode; Interference. | Ensure amplifier is in "BLUE" mode. Move device closer (within 16.4ft/5m). Remove obstructions. Restart both amplifier and Bluetooth device. |
| Hissing sound from microphone ports | Magnetic interference, especially with condenser microphones. | It is recommended to use dynamic microphones. If using condenser microphones, try placing a magnetic block near the microphone cable to reduce interference. |
| Poor sound quality (distortion, weak bass/treble) | Incorrect Treble/Bass settings; Low quality audio source; Speaker impedance mismatch. | Adjust Treble and Bass knobs. Use a high-quality audio source. Ensure speakers are 4-16 ohm impedance. |
| Remote control not working | Dead batteries; Obstruction between remote and amplifier; Remote sensor blocked. | Replace remote batteries. Ensure clear line of sight to the amplifier's IR sensor. |
9. Warranty and Support
WOOPKER is committed to providing high-quality products and excellent customer service. Your BT-298 Pro amplifier comes with dedicated support to ensure your satisfaction.
9.1 Return Policy
You may return the product within 30 days for an exchange or refund, subject to the retailer's return policy.
9.2 Technical Support
WOOPKER offers lifetime technical customer support for the BT-298 Pro amplifier. If you have any questions, concerns, or require assistance with setup or troubleshooting, please do not hesitate to contact us. We aim for a quick response within 24 hours.
For support, please refer to the contact information provided by your retailer or visit the official WOOPKER website.
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