Depusheng F4/F7 Portable Digital Sound Mixer User Manual

1. Introduction

Thank you for choosing the Depusheng F4/F7 Portable Digital Sound Mixer. This manual provides essential information for the safe and efficient operation of your new audio mixer. Please read it thoroughly before use and keep it for future reference.

2. Safety Information

• Do not expose this unit to rain or moisture to avoid fire or electric shock.
• Do not open the casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
• Ensure the power supply voltage matches the requirements specified on the unit.
• Avoid placing the unit near heat sources or in direct sunlight.
• Always disconnect the power supply before cleaning or when not in use for extended periods.

3. Package Contents

Please check that all items are present in your package:

• 1 x Depusheng F4 or F7 Mixer
• 1 x Power Supply
• 1 x USB Cable
• 2 x Changeover Plugs (6.5mm to RCA)
• 1 x RCA Cable
• 1 x User Manual

4. Product Overview

The Depusheng F4/F7 mixers are portable digital audio consoles designed for various applications including studio recording, DJ setups, and live performances. They feature multiple input channels, sound adjustment controls, USB recording/playback, and Bluetooth connectivity.

4.1 F7 Mixer Control Layout

• XLR Input: For microphones.
• 6.5MM Input (LINE/INSERT): For line-level instruments or insert effects.
• GAIN Controller: Adjusts input sensitivity.
• PAN Controller: Adjusts stereo positioning.
• HF Treble Tone Controller: Adjusts high frequencies.
• MF Alto Tone Controller: Adjusts mid frequencies.
• LF Bass Tone Controller: Adjusts low frequencies.
• AUX Controller: Controls auxiliary send level.
• Channel Fader: Adjusts individual channel volume.
• PEAK Indicator: Lights up when input signal is too high.
• EFFECT Controls: Adjusts built-in effects (e.g., Reverb, Delay).
• HEAD PHONES Output: For monitoring audio.
• [RCA] Output: Stereo RCA main output.
• [6.5MM] Output: Stereo 6.5mm main output.
• [USB] Interface: For USB drive connection and PC connection.
• LCD DISPLAY: Shows status for MP3 player, recording, and Bluetooth.
• [+48V PHANTOM] Button: Activates 48V phantom power for condenser microphones.
• LED Light Level Indicators: Visual representation of output levels.
• DELAY Control: Adjusts delay effect parameters.
• REP Control: Adjusts repeat for effects.
• Phones Control: Adjusts headphone volume.
• AUX Control: Adjusts auxiliary return level.
• EFFECT Control: Adjusts overall effect send level.
• MAIN OUT Master Fader: Controls overall main output volume.
• Power Switch: Turns the unit on/off.
• External Power Input Socket: Connects to the power adapter.

4.2 F4 Mixer Control Layout

The F4 mixer features a similar layout and functionality to the F7, but with 4 input channels instead of 7. Refer to the F7 diagram for general control identification, noting the reduced number of input channels.

5. Setup

5.1 Initial Power-Up

1. Connect the provided power adapter to the External Power Input Socket on the rear of the mixer.
2. Plug the power adapter into a suitable electrical outlet.
3. Press the Power Switch to turn on the mixer. The power indicator lights should illuminate.

5.2 Connecting Microphones and Instruments

• Dynamic Microphones: Connect dynamic microphones to the XLR Input jacks.
• Condenser Microphones: For condenser microphones, connect to the XLR Input and press the [+48V PHANTOM] button to supply phantom power. Ensure phantom power is only activated when needed for condenser mics.
• Line-Level Instruments: Connect instruments like keyboards or guitars (with a preamp) to the 6.5MM Input (LINE) jacks.

5.3 Connecting Output Devices

• Speakers/Amplifiers: Connect your main speakers or amplifier to the MAIN OUTPUT (RCA or 6.5MM) jacks.
• Headphones: Connect monitoring headphones to the HEAD PHONES output. Adjust the Phones Control knob for desired volume.

6. Operating Instructions

6.1 Basic Audio Adjustment

1. Gain Control: Use the GAIN knob for each channel to set the input level. Adjust until the PEAK indicator flashes only occasionally.
2. Equalization (EQ): Use the HIGH, MID, and LOW knobs to shape the tone of each channel.
3. Pan Control: Adjust the PAN knob to position the sound in the stereo field (left or right).
4. Channel Volume: Use the Channel Fader to control the volume of each individual input.
5. Main Output: Adjust the MAIN OUT Master Fader for the overall output volume. Monitor the LED Light Level Indicators to prevent clipping.

6.2 Effects (Reverb/Delay)

1. Use the EFFECT controls to select and adjust the desired effect (e.g., reverb, delay).
2. The DELAY and REP (Repeat) knobs fine-tune the effect parameters.
3. Use the EFF (Effect) knob on each channel to send a portion of that channel's signal to the effects processor.

6.3 USB Recording and Playback

1. USB Drive: Insert a USB flash drive into the USB interface. The LCD display will show 'NO DEVICE' until a compatible drive is inserted.
2. Recording: Press the 'REC' button (often indicated by a circle or record icon) on the DIGITAL MP3 PLAYER section to start recording. Press again to stop.
3. Playback: Use the playback controls (play/pause, next/previous) on the DIGITAL MP3 PLAYER section to play audio files from the USB drive or recorded tracks.

6.4 Computer Connection and Recording

1. Connect the mixer to your computer using the provided USB cable.
2. The mixer should be recognized as an audio interface by your computer's operating system.
3. Open your preferred Digital Audio Workstation (DAW) software (e.g., Audacity, GarageBand, Ableton Live).
4. Select the mixer as your input device within the DAW settings.
5. You can now record audio from the mixer's inputs directly to your computer.

6.5 Bluetooth Connection

1. On the mixer's DIGITAL MP3 PLAYER section, navigate to the Bluetooth mode using the 'MENU' button. The LCD display will show 'BLUETOOTH'.
2. On your mobile device (smartphone, tablet), enable Bluetooth and search for available devices.
3. Select the mixer (e.g., 'BT-Speaker' or similar) from the list of devices to pair.
4. Once connected, you can play audio from your mobile device through the mixer.

7. User Tips

• For optimal sound quality, always set the GAIN levels carefully to avoid clipping (PEAK indicator lighting up constantly).
• Experiment with the EQ (HIGH, MID, LOW) settings to find the best tone for your microphones and instruments.
• When using the USB recording feature, ensure your USB drive has sufficient free space and is formatted to a compatible file system (e.g., FAT32).
• The compact size of the F4 mixer (approx. 33cm x 8cm x 27cm) makes it ideal for small setups or mobile use.

8. Troubleshooting

9. Specifications

10. Maintenance

• Clean the unit regularly with a soft, dry cloth. Do not use liquid cleaners or aerosols.
• Keep the mixer free from dust and debris, especially around faders and knobs.
• Store the unit in a cool, dry place when not in use.
• Avoid excessive force when connecting cables or adjusting controls.

11. Warranty and Support

For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.