1. Introducció
This manual provides detailed instructions for the operation and maintenance of your Walfront High Gain Microphone Audio Power Amplifier. Please read this manual thoroughly before using the device to ensure proper function and longevity.
The Walfront Microphone Audio Power Amplifier is designed to enhance microphone audio signals, offering adjustable gain and frequency filtering for various audio applications, including karaoke, home theater, and sound systems. Its compact and durable design ensures portability and reliable performance.

Image: The Walfront High Gain Microphone Audio Power Ampmés viu.
2. Contingut del paquet
Si us plau, verifiqueu que tots els elements que s'enumeren a continuació estiguin inclosos al vostre paquet:
- 1 x Walfront Microphone Audio Power Ampmés viu
- 1 x Power Cord (USB to DC 5V)
- 1 x Headphone Cable (3.5mm to 3.5mm audio cable)
- Bateria de liti de 3.7 V 250 mAh integrada

Image: Walfront Microphone Audio Power Amplifier shown with its power cord and headphone cable.
3. Característiques del producte
- Alt guany Amplificació: Offers two gain levels: approximately 200 times (45dB) when the gain switch is up, and approximately 600 times (55dB) when pressed.
- Five-Level Frequency Switching: Selectable frequency ranges (300Hz-4KHz, 450Hz-4KHz, 700Hz-4KHz, 900Hz-4KHz, 1KHz-4KHz) to optimize sound quality for different applications.
- Controls ajustables: Independent knobs for frequency selection, recording volume, and monitor volume.
- Compacte i portàtil: Lightweight aluminum alloy shell with a mini size, designed for easy transport and placement in confined spaces.
- Construcció duradora: Sturdy aluminum alloy shell provides strong interference resistance and lossless signal transmission.
- Bateria integrada: Built-in 3.7V 250mAh lithium battery for portable use.
- Llum indicadora: Provides power and charging status feedback (4 consecutive flashes indicate 4 grids of power).

Imatge: El/La amplifier's compact design and durable aluminum alloy casing.
4. Guia de configuració
4.1 Identificació de components

Imatge: Superior view de la amplifier showing control knobs and input/output labels.
- MIC (3.5mm Microphone Jack): Connecteu el vostre micròfon aquí.
- BPF (Frequency Switching Knob): Adjusts the frequency range.
- REC VOL (Recording Volume Knob): Controls the recording volume for connected mobile devices.
- ON/OFF (Monitor Volume / Power Switch): Turns the unit on/off and adjusts monitor volume.
- Llum indicadora: Shows power and charging status.

Imatge: Lateral view de la amplifier showing ports and the gain switch.
- 5 V CC (port de càrrega): Connect the provided USB power cord for charging.
- REC OUT (Mobile Phone Interface): Connect to a mobile device for recording.
- GAIN SW (Gain Switching Button): Toggles between 200x (45dB) and 600x (55dB) gain.
- HEADPHONE (3.5mm Headphone Jack): Connect headphones for monitoring audio output.
4.2 Càrrega inicial
Abans del primer ús, carregueu completament el amplifier. Connect the provided USB power cord to the DC 5V port on the amplifier and a compatible USB power source (e.g., a mobile phone charger or computer USB port). The indicator light will provide charging status.
4.3 Connexió de dispositius
- Connecteu el vostre micròfon al MIC (3.5mm Microphone Jack) port.
- For monitoring, connect your headphones to the AURICULAR (3.5mm Headphone Jack) port.
- To record audio on a mobile device, connect the REC OUT (Mobile Phone Interface) to your device's audio input using the appropriate cable.
5. Instruccions de funcionament
5.1 Engegada/Apagada i Control de Volum
Gira el ON/OFF knob clockwise to power on the amplifier and increase the monitor volume. Rotate counter-clockwise to decrease volume and power off the device.
5.2 Gain Switching
El amplifier features two gain levels:
- Low Gain (200x / 45dB): Quan el GUANY SW button is in the popped-up position.
- High Gain (600x / 55dB): Quan el GUANY SW button is pressed down.
Select the appropriate gain level based on your microphone's output and desired amplificació.

Image: Detail of the gain switch and its effect on amplificació.
5.3 Frequency Switching (BPF)
El BPF knob allows you to select from five different frequency ranges to filter the audio signal:
- 300Hz-4KHz
- 450Hz-4KHz
- 700Hz-4KHz
- 900Hz-4KHz
- 1 KHz-4 KHz
Gira el BPF knob to choose the frequency range that best suits your audio source and environment, helping to improve sound clarity and reduce unwanted noise.

Image: The frequency switching knob and its available settings.
5.4 Recording Volume Adjustment (REC VOL)
Utilitza el REC VOL knob to adjust the volume of the audio signal being sent to your connected mobile device for recording. Adjust this to prevent clipping or ensure adequate recording levels.

Imatge: El/La amplifier in a typical usage scenario with a microphone, demonstrating its function.
6. Manteniment
- Neteja: Utilitzeu un drap suau i sec per netejar l'exterior ampNo utilitzeu netejadors líquids ni materials abrasius.
- Emmagatzematge: Guardeu el dispositiu en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Cura de la bateria: For optimal battery life, avoid fully discharging the battery frequently. If storing for extended periods, charge the battery to approximately 50% every few months.
- Manipulació: Manipuleu el dispositiu amb cura per evitar danys per caigudes o impactes.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense alimentació / El dispositiu no s'encén | La bateria està esgotada. | Connecteu el amplifier to a 5V DC power source using the provided USB cable and charge it. |
| Sense sortida d'àudio |
|
|
| Poor sound quality / Unwanted noise |
|
|
| Recording volume too low/high | REC VOL knob setting. | Adjust the REC VOL knob to the desired level. |
8. Especificacions
| Característica | Detall |
|---|---|
| Tipus d'element | Microphone Audio Power Ampmés viu |
| Material | Aliatge d'alumini |
| Font d'alimentació | DC 5V |
| Interfície del micròfon | 3.5 mm |
| Nivells de guany | Approx. 200 times (45dB) / Approx. 600 times (55dB) |
| Canvi de freqüència | 5 Levels: 300Hz-4KHz, 450Hz-4KHz, 700Hz-4KHz, 900Hz-4KHz, 1KHz-4KHz |
| Bateria | 3.7V 250mAh 502030 Lithium Battery |
| Número de model | WALFRONTozw3dpey0v |
| Fabricant | WALFRONT |
| Dimensions del paquet | 5.91 x 3.94 x 1.57 polzades |
| Pes de l'article | 6.35 unces |
9. Garantia i Suport
For warranty information and customer support, please refer to the Walfront official weblloc web o poseu-vos en contacte amb el vostre distribuïdor. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.
Per obtenir més ajuda, podeu visitar la botiga Walfront a Amazon: Botiga Walfront
