LENRUE A25

LENRUE SoundBoom A25 USB Computer Speaker Instruction Manual

Model: A25

1. Introduction

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your LENRUE SoundBoom A25 USB Computer Speaker. Please read this manual thoroughly before using the product to ensure proper function and longevity.

2. Product Overview

The LENRUE SoundBoom A25 is a compact, wired stereo speaker designed for use with computers, laptops, desktops, and smartphones. It features a simple plug-and-play connection and is powered via a USB port.

LENRUE SoundBoom A25 Speaker with blue LED lights

Figure 2.1: Front view of the LENRUE SoundBoom A25 speaker, showcasing its sleek design and integrated blue LED lighting on both ends.

Key Features:

  • Simple Connection: Connects via a 3.5mm audio jack for sound and a USB port for power.
  • USB Bus Powered: Eliminates the need for an external power adapter.
  • Compact Design: Measures approximately 39.6 cm (L) x 5.8 cm (D) x 6.6 cm (H), ideal for desktop use.
  • Stereo Sound: Delivers 2.0 channel stereo audio.
  • LED Lighting: Integrated blue LED lights for visual enhancement.

3. Setup Instructions

Follow these steps to connect your LENRUE SoundBoom A25 speaker to your device.

  1. Connect the USB Power Cable: Insert the USB-A connector of the speaker cable into an available USB port on your computer, laptop, or a compatible USB power adapter. This provides power to the speaker.
  2. Connect the 3.5mm Audio Cable: Insert the 3.5mm audio jack into the headphone or audio output port of your computer, laptop, desktop PC, or smartphone. This transmits the audio signal to the speaker.
  3. Power On: The speaker will automatically power on when the USB cable is connected to a powered USB port. The integrated LED lights will illuminate.
  4. Adjust Volume: Use the volume controls on your connected device (computer, laptop, smartphone) to adjust the audio output level. The speaker itself may also have touch controls (refer to Figure 4.1).
Diagram showing 3.5mm audio interface and USB interface for power supply connected to a speaker and various devices

Figure 3.1: Connection diagram illustrating how to connect the 3.5mm audio jack and USB power cable to your devices.

Person connecting the speaker to a laptop with USB and 3.5mm cables

Figure 3.2: Example of connecting the speaker to a laptop, demonstrating the simple plug-and-play setup.

4. Operation

4.1 Power On/Off

The speaker is designed to power on automatically when connected to a live USB port. To turn off the speaker, simply disconnect the USB power cable from its source.

4.2 Volume Control

Volume is primarily controlled through the connected device (computer, laptop, smartphone). The speaker features touch controls on its top surface for additional volume adjustments. These controls are typically marked with '+' and '-' symbols.

Top view of the speaker showing touch controls and dimensions

Figure 4.1: Top view of the speaker highlighting the touch control panel for volume adjustment and other functions.

4.3 LED Lights

The speaker includes integrated blue LED lights on its ends. These lights illuminate when the speaker is powered on. There is no specific control mentioned for turning off these lights independently.

5. Maintenance

To ensure the longevity and optimal performance of your speaker, follow these simple maintenance guidelines:

  • Cleaning: Use a soft, dry cloth to wipe the exterior of the speaker. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
  • Storage: When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
  • Handling: Avoid dropping the speaker or subjecting it to strong impacts. Do not attempt to disassemble the speaker, as this will void the warranty and may cause damage.

6. Troubleshooting

If you encounter issues with your LENRUE SoundBoom A25 speaker, refer to the following common problems and solutions:

ProblemPossible CauseSolution
No sound output.
  • USB power cable not connected or not receiving power.
  • 3.5mm audio jack not fully inserted or connected to the wrong port.
  • Device volume is too low or muted.
  • Speaker volume is too low.
  • Ensure the USB cable is securely connected to a powered USB port.
  • Verify the 3.5mm audio jack is fully inserted into the audio output port of your device.
  • Increase the volume on your connected device and ensure it is not muted.
  • Use the touch controls on the speaker to increase volume.
Distorted or poor sound quality.
  • Volume set too high on the device or speaker.
  • Loose audio connection.
  • Interference from other electronic devices.
  • Reduce the volume on your device and the speaker.
  • Check and re-seat the 3.5mm audio jack.
  • Move the speaker away from other electronic devices that may cause interference.
LED lights are not on.
  • Speaker is not receiving power.
  • Ensure the USB power cable is securely connected to a functional USB port.
Speaker is not a "true" USB speaker (requires 3.5mm audio).
  • This model uses USB solely for power, not for audio data transmission. Audio is transmitted via the 3.5mm auxiliary cable.
  • This is expected behavior for this speaker model. Ensure both the USB (for power) and 3.5mm (for audio) cables are connected.

7. Specifications

Technical specifications for the LENRUE SoundBoom A25 USB Computer Speaker:

FeatureDetail
BrandLENRUE
Model NumberA25
Connectivity TechnologyAuxiliary, USB (for power)
Audio Output ModeStereo
Speaker TypeComputer Speaker
Mounting TypeTabletop Mount
Product Dimensions39.6 cm (Width) x 5.8 cm (Depth) x 6.6 cm (Height)
Item Weight612 g
Power SourceUSB Bus Powered
Compatible DevicesDesktop, Laptop, Personal Computer, Smartphone
Special FeatureUSB Port (for power), LED Light
Exploded view of the speaker showing internal components for 3D Surround Sound

Figure 7.1: Internal component layout, illustrating the 2.0 channel stereo speaker configuration.

LENRUE SoundBoom A25 speaker placed neatly under a computer monitor

Figure 7.2: The speaker's ultra-compact design, fitting seamlessly into a desktop environment.

8. Warranty and Support

For information regarding warranty coverage and customer support, please refer to the warranty card included with your product or contact LENRUE customer service directly. Details are typically available on the manufacturer's official website.

For further assistance, you may visit the LENRUE Store on Amazon.

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