1. Introduction
Thank you for purchasing the RISHIL WORLD Sunbuck AV-MP326BT Stereo Amplifier. This manual provides detailed instructions for the proper installation, operation, and maintenance of your amplifier. Please read this manual thoroughly before using the product to ensure optimal performance and safety. Keep this manual for future reference.
2. Safety Instructions
To prevent fire, electric shock, and damage to the unit, please observe the following safety precautions:
- Do not open the amplifier casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Do not expose this unit to rain or moisture. Avoid placing objects filled with liquids, such as vases, on the unit.
- Ensure proper ventilation. Do not block ventilation openings.
- Place the unit on a stable, flat surface.
- Disconnect the power cord from the wall outlet if the unit is to be left unused for a long period.
- Use only the specified power supply (220V-240V 50Hz).
- Do not overload the electrical outlet or extension cords.
- Keep the unit away from direct sunlight, heat sources, and strong magnetic fields.
3. Package Contents
Please check that all items are present in the package:
- RISHIL WORLD Sunbuck AV-MP326BT Stereo Amplifier
- Power Cord
- Remote Control (if included)
- User Manual (this document)
4. Product Overview
4.1 Front Panel Controls
The front panel provides access to all primary controls and input options. Key features include:
- Power Switch: Turns the amplifier on or off.
- Microphone Inputs (MIC1-MIC4): Connect microphones for karaoke or public address.
- Microphone Volume/Tone Controls: Adjust individual microphone volume, echo, delay, treble, and bass.
- Master Music Volume: Controls the overall output volume of the music.
- Input Selector: Switches between different audio sources (e.g., Bluetooth, USB, SD Card, Line In).
- USB/SD Card Slots: For playing audio files directly from USB drives or SD cards.
- LED Display: Shows current mode, track information, and other status indicators.
- Equalizer (EQ) Controls: Graphic equalizer sliders to fine-tune audio frequencies.
- Balance Control: Adjusts the balance between left and right audio channels.
4.2 Rear Panel Connections
The rear panel houses all necessary connections for external devices:
- Speaker System Terminals (R/L): Connect your passive speakers here. Ensure correct polarity (+ to + and - to -).
- Audio Input (RCA): Connect external audio sources like CD players, DVD players, or other media devices.
- Audio Output (RCA): For connecting to another amplifier or recording device.
- FM Antenna: Connect the included FM antenna for radio reception.
- Power Source Input (AC 220V-240V 50Hz): Connect the provided power cord.
- DC 12V 10-15A Input: Alternative power input for specific applications (e.g., car use, ensure proper power supply).
4.3 Audio Input/Output Detail
This image highlights the RCA audio input and output connections, labeled 'AUDIO INPUT' and 'OUTPUT'. There are two sets of stereo RCA inputs (A and B) and one set of stereo RCA outputs (LINE).
5. Setup
- Placement: Place the amplifier on a stable, flat surface with adequate ventilation around it. Avoid direct sunlight or heat sources.
- Speaker Connection: Connect your passive speakers to the 'SPEAKER SYSTEM' terminals on the rear panel. Ensure the positive (+) terminal of the amplifier connects to the positive (+) terminal of the speaker, and the negative (-) to the negative (-). Incorrect polarity can affect sound quality.
- Audio Source Connection:
- External Devices (RCA): Connect your CD player, DVD player, or other audio sources to the 'AUDIO INPUT' RCA jacks (A or B) on the rear panel using RCA cables.
- FM Antenna: Connect the provided FM antenna to the 'FM.ANT' terminal for radio reception.
- Power Connection: Ensure the amplifier's power switch is in the 'OFF' position. Connect the power cord to the 'POWER SOURCE 220V-240V 50Hz' input on the rear panel, then plug the other end into a suitable wall outlet.
- Initial Power On: Turn on the amplifier using the power switch on the front panel. The LED display should illuminate.
6. Operating Instructions
6.1 Basic Audio Playback
- Ensure all connections are secure.
- Turn on the amplifier and your audio source device.
- Use the 'INPUT' selector button on the front panel to choose the desired audio source (e.g., LINE A, LINE B).
- Slowly increase the 'MUSIC VOL' knob to a comfortable listening level.
- Adjust the 'TREBLE', 'BASS', and 'BALANCE' controls as desired. Use the graphic equalizer sliders for more precise tone adjustments.
6.2 Bluetooth Connection
- Press the 'INPUT' selector button until 'BT' or 'Bluetooth' appears on the LED display.
- On your Bluetooth-enabled device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select 'Sunbuck AV-MP326BT' (or similar name) from the list of devices.
- Once paired, you can play audio from your device through the amplifier.
6.3 USB/SD Card Playback
- Insert a USB flash drive or SD card containing audio files into the respective slot on the front panel.
- The amplifier should automatically switch to USB or SD card mode. If not, use the 'INPUT' selector.
- Use the playback controls (Play/Pause, Next, Previous) on the front panel or remote control to manage your music.
6.4 Microphone Usage (Karaoke/PA)
- Connect up to four microphones to the 'MIC1' through 'MIC4' inputs on the front panel.
- Adjust the individual 'MIC VOL' knobs for each connected microphone.
- Use the 'ECHO' and 'DELAY' controls to add effects to the microphone sound.
- Adjust 'MIC TREBLE' and 'MIC BASS' for desired vocal tone.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or abrasive materials.
- Ventilation: Ensure that the ventilation openings are not blocked by dust or debris. Periodically clean them with a soft brush or vacuum cleaner.
- Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power switch off; Wall outlet faulty. | Check power cord connection; Turn power switch on; Test wall outlet with another device. |
| No sound output | Speakers not connected; Input source not selected; Volume too low; Mute activated. | Check speaker connections; Select correct input source; Increase 'MUSIC VOL'; Check if mute is active. |
| Bluetooth not connecting | Amplifier not in Bluetooth mode; Device too far; Device already connected to another unit. | Switch amplifier to Bluetooth mode; Move device closer; Disconnect from other devices and try again. |
| Distorted sound | Volume too high; Incorrect speaker impedance; Poor cable connection. | Reduce volume; Ensure speakers match amplifier impedance; Check all cable connections. |
If the problem persists after trying these solutions, please contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Model | Sunbuck AV-MP326BT |
| Power Output | 800W (Peak) |
| Channels | 2-Channel Stereo |
| Speaker Impedance | 4 ohm |
| Input Voltage | AC 220V-240V 50Hz / DC 12V 10-15A |
| Connectivity | Bluetooth, USB, SD Card, RCA Audio Input (A/B), RCA Audio Output (Line), FM Radio |
| Microphone Inputs | 4 (with individual volume, echo, delay, treble, bass controls) |
| Equalizer | Graphic Equalizer |
10. Warranty and Support
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support, troubleshooting assistance, or warranty claims, please contact your retailer or the RISHIL WORLD customer service department. Contact information can typically be found on the product packaging or the brand's official website.
Note: Keep your purchase receipt as proof of purchase for warranty purposes.