Nobsound NS-10G Bluetooth 5.0 2 Channel Power Amplifier User Manual

Introduction

The Nobsound NS-10G is a compact yet powerful Bluetooth 5.0 2-channel power amplifier designed for home audio systems. It delivers 50W x 2 output, suitable for 3-8 inch speakers, and supports multiple audio inputs including AUX, Bluetooth, and USB. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

What's in the Box

1 × Amplifier
1 × Power Adapter
1 × 3.5mm+RCA+USB Cable
1 × Manual

Nobsound NS-10G amplifier and included accessories — Figure 1: Contents of the Nobsound NS-10G package, including the amplifier, power adapter, and various cables.

Features

NS-10G is the upgrade version of our popular NS-01G. It is a 100W Bluetooth power amplifier for 3~8 inch 2.0CH home speakers.
Support AUX / Bluetooth / USB inputs from various audio devices like phone, TV, Blu-ray player, PC computer, CD player and so on.
Bluetooth 5.0 can ensure stable wireless transmission (around 30ft). USB port can be used as a computer sound card. No driver needed and easy use.
With Bass/Mode key. Short press to conveniently switch among different inputs. Long press to choose different sound effects (in Bluetooth mode).
Super mini size with powerful drive. Clear HiFi sound with no background noise.

Specifications

Specification	Value
Brand	Nobsound
Model Number	DZ027
Output Power	100 Watts (50W x 2)
Number of Channels	2
Voltage	12 Volts (DC)
Minimum Supply Voltage	9 Volts (DC)
Maximum Supply Voltage	24 Volts (DC)
Supply Current	5 Amps
Item Weight	1.1 pounds
Package Dimensions	6.69 x 5.75 x 2.52 inches
Mounting Type	Surface Mount

Setup

1. Unpacking and Inspection

Carefully remove all components from the packaging. Inspect the amplifier and accessories for any signs of damage. If any items are missing or damaged, contact customer support immediately.

2. Connecting Speakers

Connect your passive speakers to the speaker terminals on the rear of the NS-10G amplifier. Ensure correct polarity: connect the positive (+) terminal of the amplifier to the positive (+) terminal of the speaker, and the negative (-) terminal of the amplifier to the negative (-) terminal of the speaker. Use appropriate gauge speaker wire for optimal performance.

Rear view of Nobsound NS-10G amplifier showing speaker terminals and input ports — Figure 2: Rear panel of the NS-10G, illustrating the speaker output terminals (R+ R- L+ L-) and input ports (DC9V-24V IN, USB sound).

3. Connecting Audio Sources

The NS-10G supports multiple audio input methods:

AUX Input: Connect your audio device (e.g., smartphone, CD player, TV) to the 3.5mm AUX input jack on the front panel using the provided 3.5mm audio cable.
USB Input: Connect the amplifier to your computer's USB port using the provided USB cable. The amplifier will function as an external sound card, requiring no additional drivers.
Bluetooth Input: For wireless connection, ensure no other wired inputs are active. The amplifier will automatically enter Bluetooth pairing mode when selected.

Front view of Nobsound NS-10G amplifier showing AUX input, volume knob, and mode buttons — Figure 3: Front panel of the NS-10G, highlighting the AUX input, volume control, and input/bass mode buttons.

Top-down view of Nobsound NS-10G amplifier showing front panel controls — Figure 4: Overhead view of the NS-10G's control panel, detailing the power/play/pause button, bass/mode button, AUX input, and volume knob.

4. 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 power outlet. The power indicator light will illuminate.

Operating Instructions

1. Power On/Off

Long press the power button (marked with a power symbol and play/pause icon) on the front panel to turn the amplifier on or off.

2. Input Selection

Short press the "BASS/M" button on the front panel to cycle through the available input modes: AUX, USB, and Bluetooth.

3. Volume Control

Rotate the large knob on the front panel clockwise to increase volume and counter-clockwise to decrease volume.

4. Bluetooth Pairing

When Bluetooth mode is selected, the amplifier will automatically enter pairing mode. On your audio device (e.g., smartphone), search for "Nobsound NS-10G" in the Bluetooth settings and connect. A confirmation sound will indicate successful pairing.

Nobsound NS-10G amplifier connected to speakers and a smartphone via Bluetooth — Figure 5: The NS-10G amplifier in a typical setup, connected to bookshelf speakers and wirelessly paired with a smartphone for audio playback.

5. Bass Sound Effect

While in Bluetooth mode, long press the "BASS/M" button to toggle different bass sound effects. This feature is only available in Bluetooth input mode.

Maintenance

Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or abrasive materials, 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 any ventilation openings.
Storage: When not in use for extended periods, disconnect the power adapter and store the amplifier in a cool, dry place away from direct sunlight and extreme temperatures.
Cable Management: Periodically check all connected cables for wear and tear. Replace any damaged cables to prevent signal loss or potential hazards.

Troubleshooting

Problem	Possible Cause	Solution
No sound output.	Amplifier not powered on. Incorrect input selected. Volume too low. Speakers not connected properly. Audio source issue.	Ensure power adapter is connected and unit is turned on. Press "BASS/M" button to cycle inputs. Increase volume using the knob. Check speaker wire connections for correct polarity and secure fit. Verify audio source is playing and its volume is up.
Bluetooth connection issues.	Not in Bluetooth mode. Device too far from amplifier. Interference. Previous pairing conflict.	Select Bluetooth input mode. Move device closer (within 30ft). Reduce interference from other wireless devices. Forget "Nobsound NS-10G" on your device and re-pair.
Sound distortion or poor quality.	Volume too high. Speaker impedance mismatch. Poor quality audio source. Damaged cables.	Reduce amplifier and/or source volume. Ensure speakers are 3-8 ohm impedance. Try a different audio source or file. Check and replace any frayed or damaged cables.

Official Product Video

This video provides a visual overview of the Nobsound NS-10G Mini Bluetooth 5.0 Digital Amplifier, showcasing its design and features. (Source: DoukAudio, Seller)

Warranty and Support

Nobsound products typically come with a standard manufacturer's warranty. For specific warranty details, technical support, or service inquiries, please refer to the warranty card included in your product packaging or visit the official Nobsound website. You may also contact the seller directly for assistance.

For additional support and product information, visit the Nobsound Store on Amazon.

	Nobsound NS-13G/NS-15G/NS-15G PRO Digital Amplifier User Manual and Specifications Detailed user manual and technical specifications for Nobsound NS-13G, NS-15G, and NS-15G PRO digital HiFi stereo audio amplifiers. Includes setup, operation, troubleshooting tips, and contact information.
	Nobsound HiFi 5.1 Channel Bluetooth Amplifier User Manual This user manual provides instructions and troubleshooting tips for the Nobsound HiFi 5.1 Channel Bluetooth Amplifier, covering setup, operation, and common issues.
	Nobsound NS-01G PRO, NS-10G, NS-10G PRO, NS-20G Mini Bluetooth Amplifier User Manual Comprehensive user manual for Nobsound NS-01G PRO, NS-10G, NS-10G PRO, and NS-20G mini Bluetooth digital amplifiers. Learn about features, setup, operation, troubleshooting, and specifications.
	Nobsound NS-03G 100W Mono Channel Amplifier: User Guide and Specifications Comprehensive guide for the Nobsound NS-03G 100W Mono Channel Subwoofer and Full Frequency Power Amplifier, including setup instructions, technical parameters, and troubleshooting tips.
	Nobsound NS-08E & NS-10P: Vacuum Tube Headphone Amplifier & Preamp User Guide Detailed guide for Nobsound NS-08E vacuum tube headphone amplifier and NS-10P tube preamp, covering features, operation, specifications, and troubleshooting. Supports various tube replacements and HiFi audio.
	Nobsound G2 and G2 PRO Amplifier Manual User manual for Nobsound G2 and G2 PRO Hi-Fi audio amplifiers, detailing front and back panel connections and features.

Nobsound NS-10G