Introduction
Thank you for choosing the SUNBUCK AV555BT 4000W 5CH Home Audio Amplifier. This amplifier is designed to provide a powerful and versatile audio experience for your home theater, karaoke, or general audio needs. It features Bluetooth connectivity, multiple input options including SD card, USB, and FM radio, and supports up to five channels of audio output. Please read this manual carefully before operating the device to ensure proper use and to maximize its performance.
Figure 1: SUNBUCK AV555BT 4000W 5CH Home Audio Amplifier
Package Contents
Please check the package for the following items:
- 1 x Audio Power Amplifier (AV555BT)
- 1 x Remote Control
- 1 x FM Antenna
- 1 x User Manual
Figure 2: Included Accessories
Safety Information
- Ensure the amplifier is placed on a stable, flat surface with adequate ventilation.
- Do not expose the unit to rain, moisture, or direct sunlight.
- Avoid placing objects on top of the amplifier that could block ventilation openings.
- Before connecting or disconnecting any cables, ensure the amplifier is turned off and unplugged from the power outlet.
- Use only the specified power voltage for your unit (check the label on the back of the amplifier).
- Do not open the amplifier casing. Refer all servicing to qualified personnel.
Product Overview
Front Panel Controls
Figure 3: Front and Rear Panel Layout
- Display Screen: Shows current mode, track information, etc.
- Power Switch: Turns the amplifier on/off.
- Delay: Adjusts microphone delay effect.
- Echo: Adjusts microphone echo effect.
- Mic 1&2 Bass: Adjusts bass for Microphone 1 and 2.
- Mic 1&2 Treble: Adjusts treble for Microphone 1 and 2.
- Mic 1 Input: Input for Microphone 1.
- Mic 2 Input: Input for Microphone 2.
- Mic 3 Input: Input for Microphone 3.
- Mic Vol: Adjusts overall microphone volume.
- Music Vol: Adjusts overall music volume.
- Bass: Adjusts overall bass for music.
- Treble: Adjusts overall treble for music.
- Balance: Adjusts left/right channel balance.
- SD Card Slot: Insert SD card for playback.
- USB Slot: Insert USB drive for playback.
- Display Screen: (Repeated label, likely for mode/track info)
- Cycle: Cycles through playback modes.
- Play/Pause: Plays or pauses current track.
- Mode: Switches between input modes (Bluetooth, FM, USB, SD, AUX).
- Prev: Skips to previous track/station.
- Next: Skips to next track/station.
Rear Panel Connections
- FM Antenna: Connect the included FM antenna.
- Audio Input (L/R): RCA inputs for external audio sources (e.g., CD player, TV).
- Audio Output (L/R): RCA outputs for connecting to other audio devices.
- Speaker System (R/L, SR/C/SL): Terminals for connecting main, surround, and center speakers.
- Power Input: AC power input (AC220V-240V/50Hz or AC110V, depending on model).
Figure 4: Rear Panel Connections Diagram
Remote Control Functions
Figure 5: Remote Control Layout
- Power Switch: Turns the amplifier on/off.
- Mode: Switches between input modes.
- EQ: Equalizer presets.
- Vol+/-: Adjusts master volume.
- CH+/-: Changes FM radio stations or tracks.
- Play/Pause: Plays or pauses media.
- Repeat: Repeats current track or playlist.
- Song Selection (0-9): Direct track selection.
- Mute: Mutes audio output.
- Scan: Scans for FM radio stations.
Setup
1. Placement
Place the amplifier on a flat, stable surface. Ensure there is sufficient space around the unit for proper ventilation to prevent overheating. Avoid placing it near heat sources or in direct sunlight.
2. Power Connection
Before connecting to power, verify that the voltage selector on your amplifier (if present) matches your local power supply. The amplifier is available in AC110V and AC220V-240V versions. Connect the power cord to the AC Power Input on the rear panel and then to a suitable wall outlet.
3. Speaker Connection
The AV555BT supports a 5.0 channel speaker system. Connect your speakers to the corresponding terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for each speaker. The amplifier is compatible with speakers having an impedance of 4 to 16Ω.
- Main Channel Output (R/L): Connect your main stereo speakers.
- Center Surround Output (SR/C/SL): Connect your surround and center speakers.
Figure 6: Main Speaker Connections
Figure 7: Center and Surround Speaker Connections
4. Audio Input Connection
- RCA (AUX) Input: Connect external audio sources like CD players, TVs, or computers to the 'AUDIO INPUT' RCA jacks on the rear panel.
- USB/SD Card: Insert a USB flash drive or SD card into the respective slots on the front panel.
- Bluetooth: For wireless connection, ensure Bluetooth is enabled on your device (smartphone, tablet, laptop) and on the amplifier.
Figure 8: Bluetooth Connectivity
Figure 9: SD Card and USB Input
5. Microphone Connection
The amplifier supports three microphone inputs:
- Connect wired microphones to the 'MIC 1 INPUT' and 'MIC 2 INPUT' jacks on the front panel.
- A wireless microphone can be connected via the 'MIC 3 INPUT' jack.
Figure 10: Microphone Inputs
6. FM Antenna Connection
Connect the included FM antenna to the 'FM ANTENNA' terminal on the rear panel for optimal radio reception.
Operating Instructions
1. Power On/Off
Press the 'Power Switch' button on the front panel or the remote control to turn the amplifier on or off.
2. Source Selection
Press the 'Mode' button on the front panel or remote control to cycle through available input sources: Bluetooth, FM Radio, USB, SD Card, and AUX (RCA input).
3. Volume Control
- Master Volume: Use the 'Music Vol' knob on the front panel or 'Vol+/-' buttons on the remote to adjust the overall music volume.
- Microphone Volume: Use the 'Mic Vol' knob on the front panel to adjust the microphone volume.
4. Tone Control
Adjust the 'Bass' and 'Treble' knobs on the front panel to fine-tune the audio output to your preference.
5. Microphone Effects
Use the 'Delay' and 'Echo' knobs on the front panel to add effects to the microphone audio, enhancing your karaoke experience.
6. Bluetooth Pairing
- Switch the amplifier to Bluetooth mode using the 'Mode' button. The display will indicate Bluetooth pairing mode.
- On your mobile device, search for Bluetooth devices and select 'AV555BT' to connect.
- Once paired, you can stream audio wirelessly from your device to the amplifier.
7. USB/SD Playback
Insert a USB drive or SD card containing MP3 audio files. The amplifier will automatically switch to USB/SD mode and begin playback. Use the 'Prev', 'Next', 'Play/Pause', and 'Cycle' buttons on the front panel or remote to control playback.
8. FM Radio Operation
- Switch the amplifier to FM mode using the 'Mode' button.
- Use the 'Scan' button on the remote or 'CH+/-' buttons to search for and select radio stations.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or abrasive materials.
- Ventilation: Regularly check that the ventilation openings are not blocked by dust or debris. Ensure proper airflow to prevent overheating.
- Storage: If storing the amplifier for an extended period, unplug it from the power source and store it in a cool, dry place, away from direct sunlight and extreme temperatures.
Figure 11: Internal Components (for reference)
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet faulty; Power switch off | Check power cord connection; Try a different outlet; Ensure power switch is ON. |
| No sound output | Incorrect input source selected; Volume too low; Speaker cables loose/incorrectly connected; Mute function active | Select correct input mode; Increase volume; Check speaker connections and polarity; Deactivate mute. |
| Bluetooth not connecting | Amplifier not in Bluetooth mode; Device not discoverable; Interference | Switch amplifier to Bluetooth mode; Ensure device Bluetooth is on and discoverable; Move closer to amplifier; Restart both devices. |
| Poor FM reception | Antenna not connected or poorly positioned; Weak signal | Connect FM antenna securely; Adjust antenna position for better reception; Try auto-scan for stations. |
| Distorted sound | Volume too high; Incorrect impedance speakers; Faulty audio source | Reduce volume; Ensure speakers match 4-16Ω impedance; Test with a different audio source. |
Specifications
| Feature | Specification |
|---|---|
| Model Number | AV555BT |
| Power Amplifier Type | AV Power Amplifier |
| Material | Metal |
| Color | Black |
| Channels | 5.0 Channel |
| Total Peak Power | 4000W |
| Maximum Power Per Channel | Above 200W |
| Voltage | AC220V-240V/50Hz (Also available in AC110V versions) |
| Signal to Noise Ratio | 90dB |
| Standard Impedance | 4 to 16Ω |
| Rated Frequency | 20Hz-20KHz |
| Total Harmonic Distortion | ≤ 0.5% |
| Connectivity | Bluetooth, SD Card, USB, FM Radio, RCA (AUX) |
| Microphone Inputs | 3 (2 wired, 1 wireless) |
| Certification | CE |
User Tips
- Power Rating Clarification: The amplifier is rated at 4000W total peak power, with individual channels providing 'Above 200W'. When connecting speakers, ensure their RMS power handling is appropriate for the amplifier's output to prevent damage and achieve optimal sound quality. For example, if connecting 12-inch speakers, verify their RMS rating is compatible with the 'Above 200W' per channel output.
- Speaker Compatibility: This amplifier is designed for 5.0 channel systems. Ensure your speakers (main, center, surround) have an impedance between 4 and 16 ohms. Using speakers outside this range may affect performance or damage the amplifier.
- Voltage Selection: The AV555BT is available in different voltage versions (110V or 220V-240V). Always confirm the voltage of your specific unit matches your local power supply before plugging it in. This information is typically found on a label on the rear panel.
- Remote Control Care: Keep the remote control in a safe place to avoid misplacement, as replacements may not be readily available.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the specific warranty card included with your product or contact the retailer from whom you purchased the amplifier. Keep your purchase receipt as proof of purchase.