Depusheng BF5/BF6+ 5-Channel USB Mixer Instruction Manual

1. Introduction

The Depusheng BF5/BF6+ is a compact and powerful 5-channel USB mixer designed for various audio applications, including small concerts, home music production, karaoke, and live streaming. It features a built-in 256-bit DSP effect processor, Bluetooth connectivity, and USB sound card functionality, offering versatility and high-quality audio control in a portable design.

Figure 1: Depusheng BF6+ 5-Channel Mixer Front Panel Overview

2. Safety Information

• Ensure the mixer is powered by a 5V/1A power supply via the Type-C port.
• Do not expose the unit to rain or moisture to avoid fire or electric shock.
• Do not open the casing; refer all servicing to qualified personnel.
• When using a condenser microphone, always activate the +48V phantom power switch.
• Avoid placing the mixer near heat sources or in direct sunlight.

3. Product Overview

The Depusheng BF5/BF6+ mixer features a user-friendly layout with dedicated controls for each channel and master output. Key features include:

• Input Channels: Three mono input channels (CH1, CH2, CH3) with combo XLR/6.35mm jacks, and one stereo input channel (CH4/5).
• Gain Control: Individual gain knobs for CH1-CH3.
• Equalization: High (HF), Mid (MF), and Low (LF) frequency adjustments for CH1-CH3.
• Pan Control: Pan knob for stereo positioning for CH1-CH3.
• FX Send: FX knobs for sending signal to the built-in effect processor.
• Phantom Power: +48V phantom power switch for condenser microphones.
• DSP Effect Processor: 256 built-in digital effects with dedicated FX RET and PARAMETER controls.
• Dual Display Design: Separate screens for USB multimedia playback information and DSP effect settings.
• USB/OTG Port: For connecting to a computer or USB storage.
• Bluetooth Connectivity: Built-in Bluetooth 4.2 for wireless audio streaming.
• Main Output: L/R main outputs (XLR).
• Monitor Output: Dedicated monitor output.
• Headphone Output: PHONES jack with volume control.
• MP3 Player: Integrated MP3 player with playback controls.

Figure 2: Depusheng BF6+ Mixer Control Panel Detail

Figure 3: Dual Display Design for USB Multimedia and DSP Effects

4. Setup Instructions

Follow these steps to set up your Depusheng BF5/BF6+ mixer:

1. Power Connection: Connect the mixer to a stable 5V/1A power source using the provided Type-C power cable.
2. Input Connections:
   • Microphones: Connect dynamic microphones to CH1, CH2, or CH3 using XLR cables. For condenser microphones, connect via XLR and activate the +48V PHANTOM power switch located above CH1.
   • Line Instruments: Connect instruments like keyboards or guitars to CH1, CH2, or CH3 using 6.35mm (1/4-inch) TS/TRS cables. For direct connection of a guitar speaker to the mixer's input, a DI box is recommended between the instrument and the mixer.
   • Stereo Inputs: Use CH4/5 for stereo line-level devices.
3. Output Connections:
   • Main Speakers: Connect your main speakers to the L/R MAIN OUT XLR ports.
   • Monitor Speakers: Connect monitor speakers to the MONITOR output.
   • Headphones: Plug your headphones into the PHONES jack.
4. USB/Computer Connection: Connect the mixer to a computer via the USB/OTG port using a USB cable. The mixer will function as a USB sound card for playback and recording without requiring additional drivers.
5. Bluetooth Pairing: To use Bluetooth, ensure the mixer is powered on. Activate Bluetooth on your device (e.g., smartphone, tablet) and search for the mixer's Bluetooth name (usually "BF6+" or similar). Pair your device to stream audio wirelessly. The effective range for Bluetooth is approximately 5 meters (16.4 feet).

Figure 4: Connection Guide for Depusheng BF6+ Mixer

Figure 5: +48V Phantom Power for Condenser Microphones

5. Operating Instructions

This section details the operation of various features on your mixer.

5.1 Channel Control

• GAIN: Adjusts the input sensitivity for each mono channel. Start with the knob fully counter-clockwise and increase until the signal is strong without clipping (indicated by the PK light).
• HF/MF/LF: Use these knobs to adjust the high, mid, and low frequencies of each mono channel for tone shaping.
• FX: Controls the amount of signal sent from the channel to the internal effect processor.
• PAN: Positions the channel's sound in the stereo field (left to right).
• VOL: Adjusts the overall volume level of the individual channel.

5.2 DSP Effects

The mixer features 256 built-in digital effects. Use the dedicated controls to apply and adjust them:

• EFFECT PROCESSORS: The display shows the currently selected effect number.
• PARAMETER: Use this knob to scroll through and select different effects. Press the knob to confirm selection.
• FX RET: Adjusts the overall return level of the effects to the main mix.

Figure 6: Partial List of Built-in DSP Effects

5.3 USB/MP3 Player & Recording

• Playback: Insert a USB drive with MP3, WAV, or lossless APE audio files into the USB/OTG port. Use the MP3 player controls (play/pause, skip) to navigate and play tracks.
• USB Sound Card: When connected to a computer via USB, the mixer acts as an external sound card. You can play audio from your computer through the mixer and record the stereo mix output directly to your computer using compatible software (driver-free).

5.4 Bluetooth Operation

• Ensure Bluetooth is enabled on your external device.
• On the mixer, select the Bluetooth input mode (if applicable, usually indicated on the display).
• Search for the mixer's Bluetooth name (e.g., "BF6+") on your device and pair.
• Once paired, you can stream audio from your device to the mixer wirelessly.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the mixer. Avoid using abrasive cleaners or solvents.
• Storage: Store the mixer in a cool, dry place away from direct sunlight and extreme temperatures.
• Dust Protection: When not in use, cover the mixer to prevent dust accumulation, especially in the faders and knobs.
• Cable Care: Regularly check all cables for damage and ensure they are properly coiled when stored.

7. Troubleshooting

• No Power:
  • Check if the Type-C power cable is securely connected to both the mixer and the power adapter.
  • Ensure the power adapter is plugged into a working electrical outlet.
  • Verify the power supply meets the 5V/1A specification.
• No Sound Output:
  • Check all input and output cable connections.
  • Ensure the main output volume (MAIN OUT) and individual channel volumes (VOL) are turned up.
  • Verify that the connected speakers or headphones are powered on and functioning correctly.
  • If using a microphone, check its connection and ensure phantom power is enabled for condenser microphones.
• Distorted Sound:
  • Reduce the GAIN level for the input channel.
  • Lower the volume of the input source.
  • Check for damaged cables.
• Bluetooth Connection Issues:
  • Ensure the mixer is in Bluetooth mode.
  • Move your Bluetooth device closer to the mixer (within 5 meters/16.4 feet).
  • Try unpairing and re-pairing the device.
  • Ensure no other devices are interfering with the Bluetooth signal.

8. Specifications

Figure 7: Depusheng BF6+ Mixer Dimensions and Weight

9. User Tips

• Recording Capabilities: This mixer functions as a USB sound card for recording. It typically records the stereo main mix output to your computer, rather than individual multi-tracks. If multi-track recording is essential for your workflow, verify software compatibility or consider dedicated multi-track interfaces.
• Guitar Connection: For optimal sound quality when connecting a guitar directly to the mixer's input, especially if connecting to a guitar speaker, consider using a DI (Direct Injection) box. This helps match impedance and prevent signal loss or noise.
• Power Source: While the mixer is compact and portable, ensure you use a reliable 5V/1A power source. A power bank can be used for mobile setups, but confirm it provides the correct voltage and amperage.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the manufacturer or your authorized dealer. Keep your purchase receipt as proof of purchase.