1. Introduction
The MOREGAX M19 BT Amplifier Stereo Receiver is a compact and versatile audio device designed to enhance your home audio experience. It features multiple input options, including Bluetooth 5.3, Optical, Coaxial, RCA, and a 6.5mm microphone input, allowing connection to a wide range of audio sources. With 100W x 2 channel output, it can drive various passive speakers, making it suitable for home theater systems or outdoor use. The amplifier also includes bass and treble controls for sound customization and a pre-earphone output for private listening.
2. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact MOREGAX customer support.
- M19 BT Amplifier x 1
- DC 24V/5A Power Adapter x 1
- Bluetooth Antenna x 1
- IR Remote Controller x 1
- 3.5 mm AUX Cable x 1
- RCA to 3.5 mm AUX Cable x 1
- User Manual x 1
Figure 2.1: Package Contents
This image illustrates the components typically found within the product packaging, including the amplifier unit, power supply, remote, and various connection cables.
3. Product Overview
3.1 Front Panel
Figure 3.1: Front Panel Controls
The front panel provides access to essential controls and inputs:
- Signal Switch: Toggles between input sources (LINE, COA, OPT, BT).
- 3.5mm Headphone Output: For connecting headphones or active speakers.
- Infrared Area: Receives signals from the remote control.
- 6.5mm Mic Input: For connecting a microphone.
- Bass Knob: Adjusts low-frequency audio levels.
- Treble Knob: Adjusts high-frequency audio levels.
- Power On/Off/Play/Pause/Volume Knob: Multifunctional knob for power, volume adjustment, and media playback control. Features RGB lighting.
3.2 Rear Panel
Figure 3.2: Rear Panel Connections
The rear panel houses all audio input and output connections:
- RCA (Line IN): For connecting analog audio sources.
- Coaxial IN: For connecting digital audio sources via coaxial cable.
- Optical IN (OPT): For connecting digital audio sources via optical cable.
- Speaker Terminals (R/L): For connecting passive speakers.
- Bluetooth Antenna: Connect the included antenna for optimal Bluetooth reception.
- DC 12-24V Power Supply: Connect the provided power adapter here.
4. Setup Instructions
4.1 Connecting Speakers
The M19 BT Amplifier supports passive speakers. Ensure your speakers are rated appropriately for the amplifier's output (up to 100W x 2 at 4 ohms).
- Identify the positive (+) and negative (-) terminals on your speakers and the amplifier.
- Connect the speaker wires to the corresponding terminals. Ensure correct polarity (red to red, black to black) to avoid phase issues.
- Tighten the terminals securely.
Figure 4.1: Speaker Wiring Methods
This image demonstrates two common methods for connecting speaker wires to the amplifier's binding posts: using bare wire by rotating the terminal, or inserting banana plugs into the center of the terminals.
4.2 Connecting Audio Sources
Connect your desired audio source(s) to the appropriate input ports on the rear panel.
- Bluetooth: Attach the included Bluetooth antenna to the rear panel.
- RCA (Line IN): Use an RCA cable to connect devices like CD players, turntables (with a pre-amp), or other analog audio equipment.
- Optical IN / Coaxial IN: Use an optical (TOSLINK) or coaxial digital cable to connect devices such as TVs, game consoles, or digital audio players.
- 6.5mm Mic Input: Plug a 6.5mm microphone into the front panel input.
4.3 Power Connection
- Connect the DC 24V/5A power adapter to the DC 12-24V input port on the rear panel.
- Plug the power adapter into a suitable wall outlet.
5. Operating Instructions
5.1 Power On/Off
Rotate the large volume knob on the front panel clockwise until it clicks to power on the amplifier. Rotate counter-clockwise until it clicks to power off.
5.2 Input Selection
Press the 'Signal Switch' button on the front panel to cycle through available inputs (LINE, COA, OPT, BT). The active input will be indicated by an LED light. Alternatively, use the remote control to select inputs directly.
5.3 Volume Control
Rotate the large volume knob on the front panel to adjust the master volume. You can also use the VOL+ and VOL- buttons on the remote control.
5.4 Bass and Treble Adjustment
Use the 'BASS' and 'TREBLE' knobs on the front panel to fine-tune the low and high frequencies of your audio. Adjust these to suit your personal preference and speaker characteristics.
5.5 Bluetooth Pairing
- Select the 'BT' input using the signal switch. The Bluetooth indicator light will flash, indicating it's in pairing mode.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "M19 BT" from the list of devices to pair. Once connected, the Bluetooth indicator light will remain solid.
Figure 5.1: Bluetooth Pairing Process
This image illustrates the process of connecting a mobile device to the M19 BT Amplifier via Bluetooth, showing the amplifier's name appearing in the device's Bluetooth settings.
5.6 Microphone Usage
Plug a 6.5mm microphone into the front panel input. The microphone input can be used simultaneously with other audio sources. Adjust microphone volume and echo effects using the remote control.
5.7 Remote Control Functions
The included remote control provides convenient access to various functions from a distance.
Figure 5.2: Remote Control Layout
This image displays the layout of the remote control, highlighting buttons for power, volume adjustment, input switching, media playback controls, and microphone-specific settings like volume and echo.
- Power Button: Turns the amplifier on or off.
- Input Selection Buttons: Directly select LINE, OPT, COA, or BT input.
- Volume Up/Down (VOL+/VOL-): Adjusts master volume.
- Play/Pause: Controls media playback in Bluetooth mode.
- Previous/Next Track: Skips tracks in Bluetooth mode.
- MIC VOL+/VOL-: Adjusts microphone volume.
- ECH+/ECH-: Adjusts microphone echo effect.
- EQ: Cycles through equalizer presets.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | M19 BT |
| Output Power | 100W x 2 (4 ohms, 20 Hz - 20 kHz, 0.04% THD) |
| Speaker Impedance | 4-8 Ohms |
| Bluetooth Version | 5.3 |
| Bluetooth Range | Up to 60 feet (18 meters) |
| Inputs | RCA (Line IN), Optical IN, Coaxial IN, Bluetooth, 6.5mm Mic Input |
| Outputs | Speaker Terminals (Passive Speakers), 3.5mm Headphone Output (Active Speakers) |
| Power Supply | DC 12-24V (24V/5A adapter included) |
| Dimensions | 4.68 x 4.37 x 1.57 inches (11.89 x 11.10 x 3.99 cm) |
| Item Weight | 10.5 ounces (297 grams) |
| Color | Black |
7. Troubleshooting
If you encounter issues with your M19 BT Amplifier, refer to the following common problems and solutions:
- No Power:
- Ensure the power adapter is securely connected to both the amplifier and a working power outlet.
- Confirm the volume knob is rotated clockwise past the 'off' click.
- No Sound:
- Check that the correct input source is selected (LINE, COA, OPT, BT).
- Verify speaker connections are secure and correctly polarized.
- Increase the volume on both the amplifier and your audio source device.
- If using digital inputs (Optical/Coaxial), ensure your source device is configured to output PCM stereo audio, not Dolby Digital or DTS.
- If using Bluetooth, ensure the device is paired and connected, and its volume is up.
- Distorted Sound:
- Reduce the volume on both the amplifier and the audio source to prevent clipping.
- Check speaker impedance compatibility.
- Ensure all cables are fully inserted and not damaged.
- Bluetooth Connection Issues:
- Ensure the Bluetooth antenna is securely attached.
- Move your Bluetooth device closer to the amplifier.
- Disconnect and re-pair the Bluetooth device.
- Avoid obstacles between the amplifier and your Bluetooth device.
- Remote Control Not Working:
- Ensure there are no obstructions between the remote and the amplifier's IR sensor.
- Replace the remote control battery if necessary.
8. Maintenance
Proper maintenance ensures the longevity and optimal performance of your M19 BT Amplifier.
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Avoid using liquid cleaners or solvents, as they may damage the finish or internal components.
- Ventilation: Ensure the amplifier is placed in a well-ventilated area to prevent overheating. Do not block the ventilation holes.
- Storage: When not in use for extended periods, store the amplifier in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Connections: Periodically check all cable connections for tightness and ensure they are free from corrosion or damage.
9. Warranty and Support
The MOREGAX M19 BT Amplifier comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact MOREGAX customer support.
If you encounter any issues or have questions regarding your product, please contact MOREGAX customer support for assistance. Provide your product model (M19 BT) and purchase details when contacting support to facilitate a quicker resolution.
Contact Information: Please refer to the official MOREGAX website or your purchase platform for the most current customer support contact details.