Herdio 4-Channel Bluetooth Amplifier and Power Adapter User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Herdio 24V3A Home Power Adapter Receiver 4-Way Bluetooth AMP Box & Aux Mini Amplifier (Model: 68AMPBT5104). This compact amplifier is designed to power up to four speakers, offering versatile audio input options including Bluetooth, AUX, USB, and Microphone. It is ideal for home audio systems, including ceiling and wall-mounted speakers.

2. Safety Information

• Read all instructions carefully before use.
• Keep this manual for future reference.
• Caution: This amplifier is NOT waterproof. Do not install it in uncovered or wet places to prevent electric shock or damage.
• Ensure the power adapter is connected to a compatible power outlet (AC 100-240V, 50-60Hz).
• Do not open the amplifier casing; there are no user-serviceable parts inside. Refer all servicing to qualified personnel.
• Ensure proper ventilation around the amplifier to prevent overheating.
• Disconnect power before making any connections or disconnections.

3. Package Contents

Verify that all items are present in your package:

• Herdio 4-Channel Bluetooth Amplifier (AMP-BTX01)
• 24V 3A AC/DC Power Adapter (Model: CHD-240300)
• Power Cord (suitable for your region: EU/US/UK/AU plug)

4. Product Overview

4.1 Amplifier Front Panel Controls

1. PWR / Play/Pause Button: Long press for 3 seconds to power on/off. Short press to play/pause audio.
2. MODE Button: Long press for 3 seconds to restore factory settings. Short press to switch between input modes (Bluetooth/USB/AUX/MIC).
3. VOL- / TWS Button: Long press for 3 seconds to turn on/off TWS (True Wireless Stereo) mode. Short press to decrease volume.
4. VOL+ / MO/ST Button: Long press for 3 seconds to turn on/off Mono Mode. Short press to increase volume.
5. Previous Track Button: Long press for 3 seconds to fast rewind. Short press to go to the previous song.
6. Next Track Button: Long press for 3 seconds to fast forward. Short press to go to the next song.

4.2 Amplifier Side Panel Ports

• MIC Interface: For connecting a microphone.
• AUX Interface: For connecting external audio devices via a 3.5mm AUX cable.
• USB Interface: For connecting USB storage devices for audio playback.
• PWR Interface: For connecting the 24V DC power adapter.

5. Setup

5.1 Speaker Wiring

The amplifier supports up to four speakers. Follow these steps to connect your speakers:

1. Identify the positive (+) and negative (-) terminals on your speakers and the amplifier.
2. Connect the negative (-) terminal of each speaker to the corresponding negative (-) terminal on the amplifier's speaker output (L1-, R1-, L2-, R2-).
3. Connect the positive (+) terminal of each speaker to the corresponding positive (+) terminal on the amplifier's speaker output (L1+, R1+, L2+, R2+).
4. Loosen each screw on the green terminal blocks of the receiver, insert one end of the bare speaker wire into the terminal, and then tighten the screw. Gently pull the cable to ensure a secure connection.

Important: Please estimate the specific plug type and the distance to the speakers BEFORE installation so that the wires are not too short.

5.2 Power Connection

Connect the provided 24V 3A AC/DC power adapter to the PWR interface on the amplifier, then plug the power cord into a suitable wall outlet.

6. Operating Instructions

6.1 Power On/Off

Press and hold the PWR button (1) for approximately 3 seconds to turn the amplifier on or off.

6.2 Selecting Input Mode

Short press the MODE button (2) to cycle through the available input modes: Bluetooth (BT), USB, AUX, and Microphone (MIC).

6.3 Bluetooth Pairing

1. Switch the amplifier to Bluetooth mode using the MODE button. The BT indicator light will illuminate.
2. On your Bluetooth-enabled device (e.g., smartphone, tablet), search for Bluetooth devices.
3. Select "Herdio" from the list of available devices. No password is required for pairing.
4. Once connected, the BT indicator light may change or remain steady. You can now stream audio wirelessly.

6.4 AUX Input

Connect your audio source (e.g., MP3 player, computer) to the AUX interface on the side panel using a 3.5mm audio cable. Switch the amplifier to AUX mode using the MODE button.

6.5 USB Playback

Insert a USB storage device containing audio files into the USB interface on the side panel. Switch the amplifier to USB mode using the MODE button. The amplifier will automatically begin playing audio from the USB device.

6.6 Microphone Input

Connect a dynamic microphone to the MIC interface on the side panel. Switch the amplifier to MIC mode using the MODE button. Adjust the volume as needed.

6.7 Volume and Track Control

• Volume Decrease: Short press the VOL- / TWS button (3).
• Volume Increase: Short press the VOL+ / MO/ST button (4).
• Previous Track: Short press the Previous Track button (5).
• Next Track: Short press the Next Track button (6).
• Fast Rewind: Long press the Previous Track button (5) for 3 seconds.
• Fast Forward: Long press the Next Track button (6) for 3 seconds.

6.8 TWS (True Wireless Stereo) Mode

To connect two Herdio AMP-BTX01 amplifiers for a stereo experience:

1. Ensure both amplifiers are powered on and in Bluetooth mode.
2. On one amplifier, long press the VOL- / TWS button (3) for 3 seconds to activate TWS pairing. The TWS indicator light will flash.
3. The two amplifiers will attempt to pair with each other. Once successfully paired, the TWS indicator lights on both units will become steady.
4. Connect your Bluetooth device to one of the paired amplifiers (it will appear as "Herdio"). Audio will now play in stereo across both amplifiers and their connected speakers.

6.9 Mono Mode

Long press the VOL+ / MO/ST button (4) for 3 seconds to switch between stereo and mono output. The MO/ST indicator light will show the current mode.

6.10 Factory Reset

If you encounter issues or wish to clear all settings, long press the MODE button (2) for 3 seconds to restore the amplifier to factory default settings.

7. Specifications

8. Troubleshooting

• No Power:
  • Ensure the power adapter is securely connected to both the amplifier and a working power outlet.
  • Verify the power outlet is active.
  • Check if the PWR button was pressed and held for 3 seconds to turn on the device.
• No Sound:
  • Check all speaker wire connections for proper polarity and secure fit.
  • Ensure the correct input mode (Bluetooth, AUX, USB, MIC) is selected.
  • Increase the volume on both the amplifier and your audio source device.
  • Test with a different audio source or speakers to isolate the problem.
• Bluetooth Not Connecting:
  • Ensure the amplifier is in Bluetooth mode.
  • Make sure your device's Bluetooth is enabled and within range.
  • Forget "Herdio" from your device's Bluetooth list and try pairing again.
  • Try restarting both the amplifier and your Bluetooth device.
  • Perform a factory reset on the amplifier (long press MODE button for 3 seconds).
• Microphone and Bluetooth Simultaneous Use:
  • The amplifier operates in distinct modes (Bluetooth, AUX, USB, MIC). It is designed to use one input source at a time. To use the microphone, switch to MIC mode.

9. Maintenance

• Clean the amplifier with a soft, dry cloth. Do not use liquid cleaners or aerosols.
• Keep the device away from excessive heat, humidity, and direct sunlight.
• Ensure proper ventilation and do not block any vents.

10. User Tips

• Auto-On/Reconnect: The amplifier is designed to automatically power on and re-establish connection after a power outage, making it suitable for installations in less accessible locations like ceiling voids.
• Optimal Placement: For best Bluetooth performance, ensure the amplifier is not completely enclosed in metal or thick materials that could obstruct the wireless signal.
• Speaker Impedance: The unit can power up to 4 x 80W speakers at 4 or 8 Ohms. Ensure your speakers match these impedance requirements for optimal performance and to prevent damage.

11. Warranty and Support

This product comes with a one-year service warranty. For technical support, troubleshooting assistance, or warranty claims, please contact your retailer or the manufacturer directly. Please retain your proof of purchase for warranty service.