1. Introduction
This manual provides detailed instructions for the safe and efficient operation of your Nobsound NS-10G Mini Bluetooth 5.0 Digital Amplifier. Please read this manual thoroughly before using the device and retain it for future reference. The NS-10G is a compact, high-fidelity stereo amplifier designed to power passive speakers, offering versatile audio input options including Bluetooth 5.0, AUX, and USB.
2. Product Overview
2.1 Key Features
- High Power Output: Delivers up to 100W (50W + 50W) for 2.0 channel home speakers (3-8 inch).
- Multiple Audio Inputs: Supports AUX (3.5mm), Bluetooth 5.0, and USB for connection to various devices.
- Bluetooth 5.0 Connectivity: Ensures stable wireless audio transmission with a range of approximately 30 feet.
- USB Sound Card Functionality: The USB port can function as a computer sound card, requiring no additional drivers.
- Intuitive Controls: Features a Bass/Mode key for input switching and sound effect selection (in Bluetooth mode).
- Compact Design: Mini size for easy placement and integration into any audio setup.
- High-Fidelity Sound: Engineered to provide clear audio with minimal background noise.
2.2 Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact your retailer.
Image Description: The image displays the Nobsound NS-10G amplifier in red, along with its included accessories. These typically consist of a power adapter, a USB cable, an RCA to 3.5mm audio cable, and a 3.5mm to 3.5mm audio cable. An instruction manual is also visible.
- Nobsound NS-10G Mini Digital Amplifier
- Power Adapter (DC 24V)
- USB Cable
- RCA to 3.5mm Audio Cable
- 3.5mm to 3.5mm Audio Cable
- User Manual
3. Safety Instructions
To ensure safe operation and prevent damage, please observe the following precautions:
- Do not expose this device to water, moisture, or extreme temperatures.
- Do not open the amplifier casing. There are no user-serviceable parts inside.
- Use only the provided power adapter or one with identical specifications (DC 9V-24V).
- Ensure proper ventilation around the unit to prevent overheating.
- Keep the device away from strong magnetic fields.
- Disconnect the power supply before cleaning or if the unit will be unused for an extended period.
- Avoid placing heavy objects on top of the amplifier.
4. Setup
4.1 Connecting Speakers
The NS-10G is designed for passive stereo speakers.
- Identify the positive (+) and negative (-) terminals on your speakers and on the amplifier.
- Connect the positive (+) terminal of your left speaker to the "L +" terminal on the amplifier.
- Connect the negative (-) terminal of your left speaker to the "L -" terminal on the amplifier.
- Repeat steps 2 and 3 for the right speaker, connecting it to the "R +" and "R -" terminals.
- Ensure all connections are secure to prevent short circuits or poor audio quality.
Image Description: This image shows the rear panel of the Nobsound NS-10G amplifier. Clearly visible are the gold-plated speaker binding posts (L+ L- R+ R-), the DC 9V-24V power input, and the USB sound input port.
4.2 Connecting Power
Connect the provided power adapter to the "DC 9V-24V IN" port on the rear of the amplifier, then plug the adapter into a suitable wall outlet.
4.3 Connecting Audio Sources
The NS-10G supports three input methods: AUX, Bluetooth, and USB.
- AUX Input: Use the provided 3.5mm audio cable to connect your audio source (e.g., smartphone, CD player, TV) to the "AUX" input jack on the front panel.
- USB Input: Connect a USB cable from your computer to the "USB sound" port on the rear panel. The amplifier will be recognized as an external sound card.
- Bluetooth Input: No physical connection is needed for Bluetooth. Refer to the "Operating Instructions" section for pairing.
5. Operating Instructions
Image Description: This image displays the front panel of the Nobsound NS-10G amplifier. It features a large volume knob on the right, an AUX input jack, and two control buttons on the left: a power/play/pause button and a Bass/Mode button.
5.1 Power On/Off and Volume Control
- Power On: Once connected to power, the unit will typically power on automatically.
- Volume Control: Rotate the large knob on the front panel clockwise to increase volume and counter-clockwise to decrease it.
5.2 Input Selection
The "Bass/M" button (Mode button) on the front panel is used to switch between input sources.
- Short Press "Bass/M": Cycles through available inputs (Bluetooth, AUX, USB).
5.3 Bluetooth Operation
- Ensure the amplifier is powered on and set to Bluetooth input mode (indicated by an audible prompt or LED indicator, if present).
- On your Bluetooth-enabled device (e.g., smartphone, tablet), navigate to the Bluetooth settings.
- Search for available devices and select "Nobsound NS-10G" (or similar) from the list.
- Once paired, your device will connect automatically in the future.
- Long Press "Bass/M" (in Bluetooth mode): This button can be used to cycle through different sound effects or EQ presets if available.
- Power/Play/Pause Button: A short press of the power button can act as a play/pause control for Bluetooth audio.
Image Description: A stylized graphic depicting a microchip with the Bluetooth 5.0 logo, symbolizing the advanced wireless connectivity of the amplifier.
5.4 AUX and USB Operation
- AUX: Once the 3.5mm cable is connected and the input is selected, audio will play directly from your source device.
- USB: After connecting to a computer via USB and selecting the USB input, ensure your computer's audio output is set to the "Nobsound NS-10G" (or similar) sound device.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output |
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| Bluetooth connection issues |
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| Distorted or poor sound quality |
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7. Specifications
| Feature | Detail |
|---|---|
| Model Number | DZ027 (NS-10G) |
| Brand | Douk Audio (Nobsound) |
| Channels | 2.0 |
| Output Power | 50W + 50W (100W total) |
| Bluetooth Version | 5.0 |
| Input Voltage | DC 9V-24V |
| Audio Inputs | Bluetooth, AUX (3.5mm), USB Sound Card |
| Speaker Impedance | 3-8 Ohms |
| Dimensions | Approximately 6.1 x 6 x 2.2 inches |
| Weight | Approximately 16 ounces (0.45 kg) |
8. Maintenance
Proper maintenance ensures the longevity and optimal performance of your amplifier.
- Cleaning: Use a soft, dry cloth to wipe the exterior of the unit. Do not use liquid cleaners or abrasive materials.
- Ventilation: Ensure the ventilation openings are not blocked by dust or other objects.
- Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place.
- Avoid Impact: Protect the unit from physical shocks or drops.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or contact Douk Audio directly through their official website or customer service channels. Please have your model number (NS-10G / DZ027) and purchase details ready when contacting support.
