LDZS 369PRO Bluetooth 5.1 Stereo Audio Amplifier Receiver

1. Introduction

Thank you for choosing the LDZS 369PRO Bluetooth 5.1 Stereo Audio Amplifier Receiver. This high-power amplifier is designed to enhance your home theater audio experience with its 5.1 channel output, lossless decoding playback, and versatile connectivity options. Please read this manual carefully before operating the device to ensure proper use and optimal performance.

2. Package Contents

Please check the box for the following items:

• 1x Power amplifier (LDZS 369PRO)
• 1x Remote control
• 1x Power cable
• 1x User Manual

3. Product Overview

Familiarize yourself with the controls and connections on your amplifier.

3.1 Front Panel Controls

• Power Switch: Turns the unit on/off.
• Mic Vol: Adjusts microphone volume.
• Microphone Connectors (MIC1, MIC2): For connecting microphones.
• Echo: Adjusts microphone echo effect.
• Bass Adjustment: Controls low-frequency output.
• Treble Adjustment: Controls high-frequency output.
• Master Vol: Main volume control for all audio.
• Input Switching: Selects audio input source (DVD/CD, USB/SD, Bluetooth, FM).
• Display Screen: Shows current mode, FM frequency, etc.
• SD/USB Slot: For SD cards and USB drives.
• Previous/Next/Pause/Play: Media playback controls.
• Mode: Switches between input modes.

3.2 Rear Panel Connections

• FM ANT: FM antenna input.
• Coaxial Input: Digital audio input.
• Optical Fiber Input: Digital audio input.
• Audio In (L/R): RCA stereo audio input (e.g., from DVD/CD player).
• Audio Output (L/R): RCA stereo audio output.
• Left Channel Output: Speaker terminal for left channel.
• Right Channel Output: Speaker terminal for right channel.
• SW (Subwoofer) Output: For connecting a subwoofer.
• Mid Mounted Output: Speaker terminal for center channel.
• 220V Power Cord: Power input.

4. Setup Instructions

Follow these steps to set up your LDZS 369PRO amplifier:

1. Placement: Place the amplifier on a stable, flat surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight.
2. Speaker Connection: Connect your 5.1 channel speakers to the corresponding terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for each speaker. For example, connect the left front speaker to 'Left Channel Output', right front to 'Right Channel Output', center to 'Mid Mounted Output', and surround speakers to 'Right channel surround output' and 'Left channel surround output'. Connect a subwoofer to the 'SW' output.
3. Audio Input Connection: Connect your audio sources (e.g., DVD player, TV, computer) to the appropriate input jacks on the rear panel. You can use RCA cables for analog audio, or optical/coaxial cables for digital audio.
4. FM Antenna: Connect the FM antenna to the 'FM ANT' terminal for radio reception.
5. Power Connection: Ensure all audio and speaker connections are secure before plugging the power cable into the amplifier and then into a 220V AC power outlet.

5. Operating Instructions

5.1 Power On/Off

Press the 'Power' switch on the front panel to turn the amplifier on or off.

5.2 Source Selection

Use the 'Input Switching' knob or the 'Mode' button on the front panel (or remote control) to select your desired audio source (DVD/CD, USB/SD, Bluetooth, FM).

5.3 Volume Control

Adjust the 'Master Vol' knob on the front panel or use the volume buttons on the remote control to set the overall listening volume.

5.4 Bluetooth Operation

1. Select 'Bluetooth' mode using the 'Mode' button.
2. On your mobile device, search for Bluetooth devices and select 'AV-369' (or similar name) to pair.
3. Once paired, you can stream audio from your device to the amplifier.

5.5 USB/SD Card Playback

1. Insert a USB drive or SD card into the respective slot on the front panel.
2. Select 'USB/SD' mode using the 'Mode' button.
3. The amplifier will automatically detect and play audio files. Use the 'Previous', 'Next', 'Pause/Play' buttons for control.

5.6 FM Radio Operation

1. Select 'FM' mode using the 'Mode' button.
2. The amplifier will automatically scan for available radio stations.
3. Use the 'Previous' and 'Next' buttons to tune to different stations.

5.7 Microphone and Karaoke Functions

1. Connect microphones to the 'MIC1' or 'MIC2' inputs.
2. Adjust 'Mic Vol' to control microphone volume.
3. Use the 'Echo' knob to add reverberation effects to your voice.

5.8 Tone Control

Use the 'Bass' and 'Treble' adjustment knobs to fine-tune the audio output to your preference.

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 ventilation openings are not blocked to prevent overheating.
• Power Off: Always turn off and unplug the amplifier before cleaning or if it will be unused for an extended period.
• Avoid Moisture: Keep the amplifier away from water and high humidity.

7. Troubleshooting

8. Specifications

9. User Tips

• Model Clarification: Please note that the model may be referred to as '369PRO' or 'AV-369'. Both refer to the same product with the described features.
• Speaker Matching: For optimal sound quality, ensure your speakers' impedance matches the amplifier's output impedance (4-16Ω).
• Remote Control: Keep the remote control pointed towards the amplifier's IR sensor for best response.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact details provided by your retailer or the official LDZS website. Keep your purchase receipt as proof of purchase.