AK380 800W Bluetooth Amplifier User Manual

1. Product Overview

The EDUP AK380 is a versatile 2-channel Class D HiFi Bluetooth-compatible audio power amplifier designed for home theater, karaoke, and general audio applications. It supports multiple audio input sources including Bluetooth, USB, SD card, AUX, and FM radio, delivering clear and powerful sound with low distortion.

Key Features:

• Mini HIFI digital Bluetooth-compatible audio power amplifier.
• Supports TF card, AUX, U disk, MP3 format playback, and Bluetooth wireless connection.
• Integrated FM stereo radio tuner.
• User-friendly treble, bass, and volume controls.
• Low distortion provides clearer, stronger, and more powerful sound output.
• Two main channel outputs.
• Includes a remote control for convenient operation.
• Compatible with DC/AC power input, suitable for both home and car use.
• Automatic voltage switching.
• Lightweight design with low heat generation.

2. Package Contents

• 1 x Power Amplifier
• 1 x Remote Control

3. Component Identification

Front Panel:

1. Power Switch: ON/OFF toggle for the amplifier.
2. Mode Switch: Cycles through input modes (USB, SD, BT.C, FM, AUX).
3. Playback Controls:
   • Single Cycle: Repeats current track.
   • Previous Piece: Skips to the previous track.
   • Next Track: Skips to the next track.
   • Pause: Pauses/resumes playback.
4. Bass Control: Adjusts low-frequency audio output.
5. Treble Control: Adjusts high-frequency audio output.
6. Total Volume Control: Adjusts the overall audio output volume (Min/Max).
7. Digital Display: Shows current mode, track number, or FM frequency.
8. USB Socket: For USB flash drives.
9. SD Card Slot: For SD/MMC memory cards.

Rear Panel:

1. Lotus Audio Input (RCA): For connecting external audio sources via RCA cables.
2. 3.5 Audio Input (AUX): For connecting external audio sources via a 3.5mm jack.
3. FM Antenna: Connection point for the FM radio antenna.
4. Left Channel Output: Speaker terminal for the left speaker (4-16 Ω impedance).
5. Right Channel Output: Speaker terminal for the right speaker (4-16 Ω impedance).
6. 12V Power Input: DC 12V/3A power connection.

4. Setup Instructions

1. Connect Speakers: Connect your passive speakers to the Left and Right Channel Output terminals on the rear panel. Ensure correct polarity (red to red, black to black) and that your speakers have an impedance between 4-16 Ω.
2. Connect Audio Input:
   • For RCA devices (e.g., DVD player, CD player), use the Lotus Audio Input.
   • For 3.5mm jack devices (e.g., smartphone, computer), use the 3.5 Audio Input (AUX).
   • For Bluetooth, no physical audio cable connection is needed.
   • For USB or SD card playback, insert the storage device into the respective slot on the front panel.
3. Connect FM Antenna: If you plan to use the FM radio function, connect the provided FM antenna to the FM.ANT terminal on the rear panel. Extend the antenna for better reception.
4. Connect Power: Connect a DC 12V/3A power adapter (not included) to the 12V Power Input on the rear panel.
5. Power On: Flip the Power Switch on the front panel to the "ON" position. The digital display should light up.

5. Operating Instructions

1. Select Input Mode: Press the "MODE" switch on the front panel or the remote control to cycle through available input sources: USB, SD, BT.C (Bluetooth), FM, AUX. The digital display will indicate the selected mode.
2. Adjust Volume: Rotate the "Total Volume Control" knob on the front panel or use the volume buttons on the remote control to adjust the audio output level.
3. Adjust Tone: Use the "Bass Control" and "Treble Control" knobs to fine-tune the low and high frequencies of the audio.
4. USB/SD Card Playback:
   • Insert a USB flash drive or SD card containing MP3 audio files into the corresponding slot.
   • Select "USB" or "SD" mode using the Mode switch.
   • Use the Playback Controls (Previous Piece, Next Track, Pause, Single Cycle) to manage your music.
5. Bluetooth Connection:
   • Select "BT.C" mode using the Mode switch. The digital display will show "BLUE" or similar, indicating it's in pairing mode.
   • On your Bluetooth device (e.g., smartphone), search for available Bluetooth devices and select "BT.C" or a similar name.
   • Once paired, you can stream audio wirelessly from your device to the amplifier.
6. FM Radio:
   • Select "FM" mode using the Mode switch.
   • The amplifier will automatically scan and store available radio stations.
   • Use the Previous/Next Track buttons to navigate between stored stations.
7. AUX Input:
   • Connect your audio source to either the Lotus Audio Input or the 3.5 Audio Input.
   • Select "AUX" mode using the Mode switch.
   • Playback is controlled directly from your connected audio source.
8. Remote Control: The included remote control provides convenient access to mode selection, volume, playback controls, and FM tuning from a distance.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or solvents.
• Ventilation: Ensure the amplifier has adequate ventilation. Do not block the ventilation slots.
• Storage: Store the amplifier in a cool, dry place away from direct sunlight and extreme temperatures.
• Power Off: Always turn off the amplifier when not in use for extended periods.

7. Troubleshooting

8. Specifications

9. User Tips

Based on user feedback, please note the following:

• Model Verification: Some users have reported receiving a different model (e.g., AK170) when ordering the AK380. Always verify the model number upon receipt to ensure it matches your order.
• Power Supply: The amplifier requires a 12V power supply, which is not included in the package. Ensure you have a compatible power adapter (DC 12V/3A recommended) for operation.

10. Warranty and Support

For warranty claims, technical support, or service inquiries, please contact the retailer or manufacturer directly. Keep your purchase receipt as proof of purchase.

This manual provides general guidance. Specific warranty terms and support procedures may vary by region and retailer.