1. Introducció
This manual provides detailed instructions for the Nobsound Mini Dual TPA3116 Digital Power Amplifier NS-04G PRO. This compact, high-fidelity stereo amplifier is designed to deliver clear and powerful audio for various home and office audio systems. Please read this manual thoroughly before use to ensure proper setup and operation.

Figure 1: Nobsound Mini Dual TPA3116 Digital Power Amplifier NS-04G PRO (Front View)
2. Característiques del producte
- Advanced Audio Circuitry: Features dual TPA3116 IC chips for Class D amplification, delivering up to 100W+100W (4Ω load) output power.
- Integrat Preamplificació: Includes a built-in preamplification circuit with NE5532 op-amp for ultra-low distortion and dynamic balance, suitable for low-signal audio sources.
- Àmplia compatibilitat: Equipped with standard stereo RCA audio input, compatible with various devices such as phones, TVs, MP3 players, CD players, DACs, and computers.
- Construcció robusta: Housed in a durable aluminum alloy black case, offering a sleek appearance and effective heat dissipation.
- Característiques de seguretat: Designed with a reasonable circuit layout and protection mechanisms to prevent sparks and electrical shock during power-on/off.
- Optimized Components: Utilizes high-speed stepless coupling capacitors and large capacity solid capacitors for efficient power delivery and extended service life.

Figure 2: Dual TPA3116D2 chips for 100W+100W maximum output power.

Figura 3: Intern view highlighting reasonable circuit design and protection features.
3. Contingut del paquet
Si us plau, comproveu el paquet per veure si hi ha els elements següents:
- 1 x Nobsound Mini Dual TPA3116 Digital Power Amplifier NS-04G PRO
- 1 x manual d'instruccions
Note: A DC 12V-24V power supply is NOT included and must be purchased separately.

Figure 4: Package contents and ampdimensions de l'eliminador.
4. Producte acabatview
4.1 Tauler frontal
- Indicador d'alimentació: S'il·lumina quan el ampel lifier està encès.
- Power Switch / Volume Knob: Rotates to adjust volume (Min to Max) and can be pressed to power the unit on or off.
4.2 Panell posterior
- Entrada RCA (E/D): Connects to audio sources via RCA cables.
- Speaker Output (+/-): Connects to passive speakers via banana plugs or bare wire.
- DC 12V-24V Input: Connects to an external DC power adapter (not included).

Figure 5: Front and rear panel connections and controls.
5. Instruccions de configuració
Follow these steps to set up your Nobsound ampmés viu:
- Connectar els altaveus: Connect your passive speakers to the speaker output terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for each channel (Left and Right). The terminals support banana plugs or bare wire.
- Connecta la font d'àudio: Connect your audio source (e.g., phone, TV, CD player) to the RCA input jacks on the rear panel using an RCA cable. Ensure the Left (white) and Right (red) channels are correctly matched.
- Connecteu la font d'alimentació: Connect a compatible DC 12V-24V power adapter (not included) to the DC input jack on the rear panel.

Figura 6: Detallada view of the stereo L/R RCA input.
Video 1: Demonstration of connecting the Nobsound Mini Amplifier to speakers and an audio source.
6. Instruccions de funcionament
Un cop el ampUn cop configurat el lificador, seguiu aquests passos per al funcionament:
- Encès: Press the volume knob to turn on the amplificador. L'indicador lluminós d'engegada s'il·luminarà.
- Ajustar el volum: Rotate the volume knob clockwise to increase the volume and counter-clockwise to decrease it. Start with the volume at a low setting before playing audio.
- Reproduir àudio: Comença a reproduir àudio des de la font connectada.
- Apagar: Press the volume knob again to turn off the amplificador. La llum indicadora d'alimentació s'apagarà.
Vídeo 2: Acabatview of the Nobsound NS-04G PRO amplifier, including power and volume control.
7. Manteniment
Per garantir la longevitat i el rendiment òptim del vostre amplificador, seguiu aquestes pautes de manteniment:
- Neteja: Utilitzeu un drap suau i sec per netejar l'exterior amplifier. Avoid using liquid cleaners or solvents.
- Col·locació: Col·loca el amplifier in a well-ventilated area to prevent overheating. Avoid direct sunlight, heat sources, and excessive moisture.
- Connexions: Comproveu periòdicament totes les connexions dels cables per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
- Apagueu quan no estigui en ús: Apagueu el amplificador quan no s'utilitza durant períodes prolongats.
8. Solució De Problemes
Si teniu problemes amb el vostre amplificador, consulteu la taula següent per conèixer els problemes i les solucions més habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Power adapter not connected or faulty; power switch off. | Ensure power adapter is securely connected and functional. Press the power switch/volume knob to turn on the unit. |
| Sense sortida de so | Incorrect speaker or audio source connections; volume too low; faulty cables. | Check all speaker and audio input connections for proper seating and polarity. Increase volume. Test with different cables. Ensure audio source is playing. |
| So distorsionat | Volume too high; poor audio source quality; faulty speakers or cables. | Reduce volume. Test with a different audio source. Check speakers and cables for damage. |
| Soroll de brunzit o brunzit | Ground loop issue; interference from other electronics; loose connections. | Ensure all components are properly grounded. Move amplifier away from other electronic devices. Check all connections. |
9. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | NS-04G PRO |
| AmpXip lificador | Dual TPA3116D2 |
| PreampXip lificador | NE5532P |
| Potència de sortida | 100W + 100W (4Ω load) |
| Canals | 2.0 estèreo |
| Entrada d'àudio | RCA estèreo |
| Font d'alimentació | DC 12V-24V (not included) |
| Dimensions (L x A x A) | Approximately 108mm x 90mm x 35mm (4.25 x 3.54 x 1.37 inches) |
| Pes de l'article | 13.6 unces (aprox. 385 g) |
| Fabricant | Nobsound |
10. Garantia i Suport
Nobsound products are designed for reliability and performance. For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Nobsound weblloc web. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.
For further assistance, you may contact Nobsound customer service through their official channels.





