1. Introducció
The Muslady B4-LIVE is a portable 4-channel audio mixer designed for a variety of applications including live streaming, music production, and karaoke. It features a built-in soundcard, USB and Bluetooth connectivity, 2-band EQ, gain control, and delay/repeat effects, along with recording capabilities.

2. Contingut del paquet
Si us plau, reviseu el paquet amb cura per assegurar-vos que hi hagi tots els elements:
- 1 x Muslady B4-LIVE Audio Mixer
- 1 x 3.5mm TRRS to TRRS Cable
- 1 x cable USB
- 1 x Power Adapter (EU or US plug, depending on region)
- 1 x Manual d'usuari

3. Especificacions
| Característica | Detall |
|---|---|
| Marca | Muslady |
| Model | B4-LIVE |
| Color | Negre |
| Material | Plàstic |
| Entrada de l'adaptador de corrent | AC100 ~ 240V |
| Sortida de l'adaptador de corrent | 5V/2.1A |
| Sensibilitat d'entrada de micròfon | -60 dB |
| Stereo Channel Output | -40 dB |
| Sortida màxima | 4V |
| Relació senyal/soroll | -80 dB |
| Parametric EQ (HI) | ±15dB/12kHz |
| Parametric EQ (LOW) | ±15dB/60kHz |
| Dimensions (L*W*H) | 19 cm * 17.5 cm * 6 cm (7.48 in * 6.89 in * 2.36 in) |
| Pes net | 535 g (18.87 oz) |

4. Guia de configuració
Follow these steps to set up your Muslady B4-LIVE audio mixer:
- Connexió d'alimentació: Connect the provided power adapter to the mixer's power input and then to a suitable power outlet.
- Connexions d'entrada:
- Microphones/Line Instruments: Use XLR or 1/4" phone type jacks for MIC/LINE inputs (channels 1 and 2). Ensure +48V phantom power is enabled for condenser microphones.
- Entrada estèreo: Connect electronic keyboards or other stereo sound equipment to the 3/4 stereo input.
- Connexions de sortida:
- Sortida principal: Connect your speakers or recording device to the LEFT and RIGHT MAIN OUT RCA jacks.
- Auriculars: Plug your headphones into the PHONE jack for monitoring.
- Recording Output: Use the REC RCA ports for dedicated stereo recording output.
- USB/Bluetooth Connection:
- Reproducció USB: Insert a USB drive into the USB port for MP3 playback.
- Interfície d'àudio USB: Connect the mixer to a computer via USB to use it as an external soundcard for recording or playback.
- Bluetooth: Activate Bluetooth on your device and pair with the mixer for wireless audio input.

5. Instruccions de funcionament
Understanding the controls of your B4-LIVE mixer:

5.1. Channel Controls (Channels 1 & 2)
- GUANY: Adjusts the input sensitivity for each channel. Use to match the input level of your microphone or instrument.
- ALTA: Treble equalizer control. Adjusts the high-frequency range (±15dB/12kHz).
- BAIX: Bass equalizer control. Adjusts the low-frequency range (±15dB/60kHz).
- EFX: Controls the amount of effect (delay/repeat) applied to the channel.
- LED PIC: Illuminates when the input signal is too high, indicating potential clipping. Reduce GAIN if this LED lights up frequently.
- VOL: Adjusts the output volume for the individual channel.
5.2. Stereo Channel Controls (Channel 3/4)
- GUANY: Adjusts the input sensitivity for the stereo channel.
- ALT BAIX: Treble and Bass equalizer controls, similar to mono channels.
- EFX: Controls the amount of effect applied to the stereo channel.
- VOL: Adjusts the output volume for the stereo channel.
5.3. Master & Effect Controls
- RETARD: Adjusts the delay time of the effect.
- REPETIR: Adjusts the number of repetitions for the delay effect.
- VOL PRINCIPAL: Control de volum mestre per a la sortida general.
- PHONE VOL: Ajusta el volum de la sortida dels auriculars.
- ALIMENTACIÓ FANTASMA DE +48V: Button to enable/disable phantom power for condenser microphones.
5.4. USB/BT Player Controls
- MODE/BT: Switches between USB player mode and Bluetooth mode. Press and hold for Bluetooth pairing.
- REPRODUCCIÓ/PAUSA: Reprodueix o posa en pausa la pista actual.
- ANTERIOR/SEGUENT: Navigates to the previous or next track.
- REC: Initiates recording to a connected USB drive.
- Visualització: Shows current mode, track number, or Bluetooth status.
6. Funció d'enregistrament
The Muslady B4-LIVE mixer allows direct recording to a USB drive or to a computer via its built-in soundcard.
6.1. Recording to USB Drive
- Insert a formatted USB drive into the USB port.
- Set your desired input levels and master volume.
- Press the "REC" button on the USB/BT player section to start recording.
- Press "REC" again to stop recording. The recorded audio will be saved to the USB drive.
6.2. Recording to Computer (USB Soundcard)
- Connect the mixer to your computer using the provided USB cable.
- Your computer should recognize the mixer as an audio input/output device (soundcard).
- Open your preferred Digital Audio Workstation (DAW) or recording software.
- Select the Muslady B4-LIVE mixer as your audio input device in your software settings.
- Adjust input levels on the mixer and in your software, then begin recording.
7. Manteniment
- Neteja: Use a soft, dry cloth to clean the surface of the mixer. Do not use liquid cleaners or solvents.
- Emmagatzematge: Guardeu la batedora en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Manipulació: Eviteu deixar caure la batedora ni sotmetre-la a impactes forts.
- Potència: Always disconnect the power adapter when the mixer is not in use for extended periods.
8. Solució De Problemes
- Sense sortida de so:
- Check all cable connections (inputs, main out, headphones).
- Ensure the power adapter is correctly connected and the mixer is powered on.
- Verify that all volume knobs (channel, main, phone) are turned up.
- Check the input source (microphone, instrument, USB, BT) is active and sending a signal.
- If using phantom power, ensure it is enabled for condenser microphones.
- Distorted sound / PEAK LED lights up:
- Reduce the GAIN knob for the affected channel.
- Ensure the input source level is not too high.
- Bluetooth no connectat:
- Ensure the mixer is in Bluetooth mode (press MODE/BT button).
- Make sure Bluetooth is enabled on your device and it's in pairing mode.
- Try restarting both the mixer and your Bluetooth device.
- USB recording not working:
- Ensure the USB drive is properly inserted and formatted.
- Check if the USB drive has sufficient free space.
- Verify the mixer is in USB player mode before attempting to record.
9. Consells d'usuari
- For optimal sound quality, always set your input GAIN levels carefully to avoid clipping (PEAK LED lighting up).
- Experiment with the HIGH and LOW EQ controls to shape your sound.
- The DELAY and REPEAT effects can add depth to vocals and instruments; use them sparingly for a natural sound.
- When using the mixer as a USB soundcard with a computer, ensure your operating system's audio settings are configured to use the mixer as the default input/output device.
10. Garantia i Suport
This product comes with a 12-month manufacturer's limited warranty for defective items from the date of receipt. Accessories typically come with a 3-month warranty. The warranty does not cover items damaged due to misuse or after the warranty period has expired.
For warranty claims or technical support, please contact your retailer or the manufacturer directly. You will need to provide your order number and a description of the issue.





