LONPOO LP-42s Active Bookshelf Speakers User Manual

1. Introduction

Thank you for purchasing the LONPOO LP-42s Active Bookshelf Speakers. These speakers are designed to provide high-quality audio for your computer, smartphone, tablet, and other compatible devices. Featuring versatile connectivity options including Bluetooth, USB, and AUX, along with a built-in amplifier, the LP-42s delivers clear and vibrant sound for music, gaming, and movies.

Please read this manual carefully before operating the speakers to ensure proper use and to maximize your listening experience. Keep this manual for future reference.

2. Important Safety Instructions

• Read these instructions thoroughly before use.
• Keep these instructions for future reference.
• Heed all warnings on the product and in the operating instructions.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

3. Package Contents

Before setting up your speakers, please check the package contents to ensure all items are present:

• LONPOO LP-42s Active Bookshelf Speakers (1 Pair)
• Power Cord (1.2m)
• Speaker Connection Cable (2m)
• 3.5mm AUX Cable
• User Manual (This document)
• Feet (for speaker stability)

4. Product Overview

4.1 Speaker Features

• Active Bookshelf Design: Integrated Class D amplifier with 15W x 2 output for clear and powerful sound.
• High-Quality Drivers: Equipped with 3-inch carbon fiber woven full-range speakers for rich audio.
• Bluetooth 5.3: Seamless wireless streaming from compatible devices (smartphones, tablets).
• Multiple Inputs: USB input for direct playback from USB drives and 3.5mm AUX input for wired connections.
• Headphone Output: 3.5mm jack for private listening.
• Compact and Modern Design: Ideal for desktop and small space setups.
• Automatic Standby: Enters standby mode after 15 minutes of audio pause or 10 minutes without an audio source connection.

4.2 Controls and Indicators

The main controls are conveniently located on the top of the active speaker. The rear panel houses the input/output ports and the master power switch.

• Playback Controls: Buttons for Play/Pause, Previous Track, Next Track.
• Mode Button (M): Cycles through Bluetooth, USB, and AUX input modes.
• LED Indicators:
  • Blue: Bluetooth Mode
  • Purple: USB / AUX Mode
  • Red: Standby Mode

1. Volume +/- Knob: Adjusts the master volume.
2. Earphone Jack (3.5mm): Connect headphones for private listening.
3. Aux Input (3.5mm): Connect external audio devices via a 3.5mm audio cable.
4. USB Input: Connect a USB drive for direct audio playback.
5. Speaker Terminal: Connects the active speaker to the passive speaker using the provided speaker cable.
6. Power ON/OFF: Main power switch for the speakers.
7. AC IN Port: Connect the power cord to an AC outlet.

Note: When USB and AUX are connected simultaneously, the unit will play from the last connected audio source.

5. Setup and Connections

5.1 Speaker Placement

Place the active speaker (with controls and ports) and the passive speaker on a stable, flat surface. For optimal stereo imaging, position them equidistant from your listening position and at ear level. Ensure there is adequate ventilation around the speakers.

5.2 Connecting the Speakers

1. Connect one end of the provided speaker connection cable to the Speaker Terminal on the active speaker.
2. Connect the other end of the speaker connection cable to the speaker terminal on the passive speaker. Ensure correct polarity (e.g., red to red, black to black).

5.3 Power Connection

1. Ensure the Power ON/OFF switch on the rear panel of the active speaker is in the OFF position.
2. Connect the power cord to the AC IN Port on the active speaker.
3. Plug the other end of the power cord into a suitable AC power outlet (110-240V ~ 50/60Hz).

5.4 Audio Source Connections

You can connect audio sources using Bluetooth, USB, or AUX input.

5.4.1 Bluetooth Connection

1. Turn on the speakers using the Power ON/OFF switch.
2. Press the "M" (Mode) button on the top panel until the LED indicator turns blue, indicating Bluetooth mode.
3. On your Bluetooth-enabled device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
4. Select "LONPOO LP-42s" from the list of devices.
5. Once paired, the blue LED will remain solid, and you can start playing audio wirelessly.

Note: The LP-42s speakers do not support Bluetooth headphones.

5.4.2 USB Connection

1. Insert a USB flash drive (formatted as FAT or exFAT, up to 64GB) containing MP3 or WMA audio files into the USB Input port on the rear panel.
2. Press the "M" (Mode) button until the LED indicator turns purple, indicating USB/AUX mode. The speakers will automatically detect and begin playing audio from the USB drive.

5.4.3 AUX Connection

1. Connect one end of the provided 3.5mm AUX cable to the Aux Input port on the rear panel of the active speaker.
2. Connect the other end of the 3.5mm AUX cable to the headphone jack or audio output of your external device (e.g., MP3 player, computer).
3. Press the "M" (Mode) button until the LED indicator turns purple, indicating USB/AUX mode.
4. Start playing audio from your connected device.

6. Operating Instructions

6.1 Power On/Off

To turn the speakers ON or OFF, use the Power ON/OFF switch located on the rear panel of the active speaker.

6.2 Volume Control

Rotate the Volume +/- knob on the rear panel of the active speaker to adjust the overall output volume.

6.3 Mode Selection

Press the "M" (Mode) button on the top panel to cycle through the available input modes: Bluetooth, USB, and AUX. The LED indicator color will change to reflect the active mode (Blue for Bluetooth, Purple for USB/AUX, Red for Standby).

6.4 Playback Control (Bluetooth/USB Modes)

• Play/Pause: Press the Play/Pause button on the top panel.
• Previous Track: Press the Previous Track button.
• Next Track: Press the Next Track button.

6.5 Headphone Use

Connect your 3.5mm headphones to the Earphone Jack on the rear panel for private listening. When headphones are connected, audio output from the speakers will be muted.

6.6 Automatic Standby Function

The speakers are equipped with an automatic standby feature to conserve power:

• The speakers will enter standby mode (Red LED) after 15 minutes of audio pause.
• The speakers will enter standby mode (Red LED) after 10 minutes without an active audio source connection.

To wake the speakers from standby, simply start playing audio from your connected source or press any button on the top panel.

7. Maintenance and Care

• Cleaning: Wipe the speaker surfaces with a soft, dry cloth. Do not use liquid cleaners or abrasive chemicals.
• Ventilation: Ensure the speaker vents are not blocked to prevent overheating.
• Storage: If storing the speakers for an extended period, unplug them from the power outlet and store them in a cool, dry place.
• Avoid Moisture: Do not expose the speakers to water or excessive humidity.

8. Troubleshooting

9. Specifications

10. Warranty and Support

LONPOO products are designed and manufactured to the highest quality standards. For detailed warranty information and customer support, please refer to the warranty card included with your product or visit the official LONPOO website.

If you encounter any issues that are not resolved by the troubleshooting guide, please contact LONPOO customer service for assistance. Please have your model number (LP-42s) and purchase information ready when contacting support.

Contact Information:

• Website: www.lonpoo.com (Note: This is a placeholder URL, please refer to your product's actual support information.)
• Email: support@lonpoo.com (Note: This is a placeholder email, please refer to your product's actual support information.)