Depusheng MD32 USB Audio Interface User Manual

1. Introduction

The Depusheng MD32 is a professional USB audio interface and sound card designed to provide high-quality audio recording and monitoring for various applications. With its advanced features and robust construction, it is an ideal tool for musicians, podcasters, content creators, and anyone requiring a reliable audio solution for studio or live environments.

This manual provides detailed instructions on how to set up, operate, and maintain your MD32 audio interface, ensuring you get the best performance from your device.

2. Key Features

• High-Resolution Audio: Supports up to 32-bit/192kHz sampling rate for professional monitoring and listening, ensuring pristine sound quality.
• 2-In/2-Out Connectivity: Features two combined XLR/MIC/LINE inputs and two independent TRS/TS (6.35 mm) stereo outputs.
• 48V Phantom Power: Built-in phantom power for connecting condenser microphones, enhancing clarity and detail in recordings.
• Microphone Preamps: Equipped with high-quality microphone preamps offering low distortion, ultra-low noise, and ample headroom.
• Independent Controls: Each mic preamp has independent volume control knobs, signal indicators, overload indicators, and quick fade buttons.
• Real-time Monitoring: Dedicated headphone output with independent volume control for private, high-fidelity, ultra-low latency monitoring.
• Versatile Application: Suitable for music production, live streaming, sound recordings, and audiobook production.
• Durable Construction: Solid metal casing effectively isolates external electromagnetic interference, ensuring stable performance.

Image: High-resolution audio capabilities of the MD32, featuring 32-bit bit rate and 192kHz sampling rate.

Image: The MD32 audio interface is versatile for live streaming, music production, sound recording, and audiobook creation.

3. Setup Guide

3.1 Package Contents

Before you begin, please ensure all items are present in your package:

• Depusheng MD32 USB Audio Interface (Sound card) x1
• TYPE-C Data Cable x1 (or x2 if a microphone set is purchased)
• U Disk Driver (for Windows 7 systems) x1
• English Manual x1
• (If purchased as a set: Microphone x1, Microphone Cable x1, Microphone Suspension Boom x1, Microphone Anti-vibration Frame x1)

3.2 Driver Installation (Windows 7)

For Windows 7 computers, you need to install the dedicated USB drive driver. Insert the provided U disk and follow the on-screen instructions to install the driver. For other operating systems, the device is typically plug-and-play.

3.3 Power Connection

1. Connect the provided TYPE-C data cable to the USB 3.0 / TYPE-C Connector port on the rear of the MD32 interface.
2. Connect the other end of the TYPE-C data cable to your computer's USB port.
3. For additional power, connect a 5V DC power adapter (not included) to the 5V DC Power Input Jack on the rear of the MD32. Ensure the power adapter meets the standard: Output voltage: 4.8V to 5.2V, Output current: 3A or higher.

Image: Front and rear views of the MD32 interface, detailing connection points.

3.4 Connecting Microphones and Instruments

The MD32 features two combined XLR/MIC/LINE inputs on the front panel:

• Connect microphones (XLR or 1/4" jack) or instruments (1/4" jack) to INPUT 1 and INPUT 2.
• If using a condenser microphone that requires phantom power, ensure the microphone is connected, then activate the P48V switch on the rear panel. The P48 light on the front will illuminate.

Important Phantom Power Precautions:

• When connecting a device that does not support phantom power, ensure the P48V switch is OFF.
• Always turn off the P48V switch before connecting or disconnecting cables from the channel.
• Before turning the P48V switch ON or OFF, ensure the input gain for that channel is set to minimum to prevent noise and potential damage.

3.5 Connecting Output Devices

• Main Outputs: Connect your PA speakers, active monitors, or amplifiers to the two independent OUTPUT jacks (6.5mm TRS/TS) on the rear panel.
• Headphones: Connect your headphones to the PHONE jack (6.35mm) on the front panel. The MD32 also supports mini plugs for headsets or earplugs via the 3.5mm output.

Image: Comprehensive connection diagram for the MD32 audio interface.

4. Operation

The MD32 audio interface provides intuitive controls for managing your audio inputs and outputs.

4.1 Front Panel Controls

Image: Detailed diagram of the MD32 interface with labeled controls and ports.

• GAIN 1 / GAIN 2 Knobs: Adjust the input level for INPUT 1 and INPUT 2 respectively. Turn clockwise to increase gain. Monitor the SIG (Signal) and PK (Peak) indicators to avoid clipping.
• HI-Z Button: Activates high impedance mode for direct connection of instruments like electric guitars.
• Low Cut Button: Engages a low-cut high-pass filter to remove unwanted low-frequency rumble or noise from the input signal.
• SIG (Signal) Indicator: Illuminates when an input signal is detected.
• PK (Peak) Indicator: Illuminates when the input signal is too high and clipping is occurring. Reduce the GAIN knob if this light is consistently on.
• 48V Indicator: Illuminates when phantom power is active.
• MIX Knob: Balances the direct input signal (INPUT) with the playback signal from your computer (DAW) for monitoring.
• MON (Monitor) Button: Toggles direct monitoring on/off. When active, you hear your input signal directly with ultra-low latency.
• LoopBack Button: Activates the LoopBack function, which routes the output signal back to the input, useful for streaming or podcasting.
• OUT Knob: Controls the overall output volume to your main speakers/monitors.
• PHONES Knob: Adjusts the volume for the headphone output.
• POWER Light: Indicates that the device is powered on.

4.2 Recording and Monitoring

1. Connect Inputs: Plug your microphone(s) and/or instrument(s) into the appropriate input jacks.
2. Set Gain Levels: Slowly turn the GAIN knobs for each input while speaking into the microphone or playing your instrument. Adjust until the SIG indicator lights up consistently and the PK indicator only flashes occasionally during the loudest parts.
3. Activate Phantom Power (if needed): If using a condenser microphone, press the P48V switch on the rear panel.
4. Monitor Your Sound:
   • Connect headphones to the PHONES jack and adjust the PHONES knob for a comfortable listening level.
   • Press the MON button to enable direct monitoring of your input signal.
   • Use the MIX knob to blend your live input (INPUT) with the audio playing back from your computer (DAW).
5. Software Setup: Open your Digital Audio Workstation (DAW) software (e.g., Audacity, GarageBand, Ableton Live, Pro Tools). Select the "Depusheng MD32" as your audio input and output device in your DAW's audio settings.
6. Start Recording: Arm your tracks in the DAW and begin recording.

5. Specifications

5.1 Audio Interface (MD32)

Image: Physical dimensions and weight of the MD32 audio interface.

5.2 Microphone (if included in set)

Image: Physical dimensions and weight of the microphone.

6. Care and Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the audio interface and microphone. Do not use liquid cleaners or solvents.
• Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Avoid dropping or subjecting the device to strong impacts, as this can damage internal components.
• Cable Management: Ensure cables are not kinked or strained to prevent damage to connectors and wires.

7. Troubleshooting

No Power / Device Not Recognized:

- Ensure the USB cable is securely connected to both the MD32 and your computer.

- If using an external 5V DC power adapter, ensure it meets the specified voltage and current requirements (4.8V-5.2V, 3A or higher) and is properly connected.

- For Windows 7, verify that the correct USB driver has been installed from the provided U disk.

- Try connecting to a different USB port on your computer.

No Sound from Microphone/Instrument:

- Check that the microphone/instrument is correctly plugged into INPUT 1 or INPUT 2.

- Increase the corresponding GAIN knob. Watch the SIG indicator to confirm signal presence.

- If using a condenser microphone, ensure +48V phantom power is activated (P48 light on).

- Verify that the MD32 is selected as the input device in your computer's sound settings and your DAW software.

- Ensure the MON button is pressed for direct monitoring, and the MIX knob is balanced correctly.

Distorted Sound / Clipping:

- If the PK (Peak) indicator is frequently lighting up, reduce the GAIN knob for the affected input.

- Check your DAW's input levels and reduce them if necessary.

No Sound from Headphones/Main Outputs:

- Ensure headphones/speakers are correctly connected to the PHONES or OUTPUT jacks.

- Increase the PHONES or OUT knob volume.

- Verify that the MD32 is selected as the output device in your computer's sound settings and your DAW software.

- Check the MIX knob setting; if it's turned fully towards "INPUT", you might not hear DAW playback.

8. User Tips

• Optimal Gain Staging: Always set your input gain (GAIN knobs) to a level where the signal (SIG) light is active, but the peak (PK) light only flashes occasionally. This ensures a strong signal without distortion.
• Direct Monitoring for Performance: Use the MON button and adjust the MIX knob to blend your live input with your DAW playback. This allows you to hear yourself with zero latency, which is crucial for recording vocals or instruments.
• Cable Quality: Invest in good quality XLR and TRS cables to minimize noise and ensure reliable connections.
• Software Compatibility: While the MD32 is generally compatible, ensure your DAW software is updated to its latest version for optimal performance and driver recognition.

9. Warranty and Support

Depusheng offers the following support for its products:

• Free Replacement: Free replacement for damaged products within 6 months of purchase.
• Technical Guidance: Long-term technical guidance is available.
• Testing & Adjustment: Technical personnel can conduct testing guidance and adjustment.
• Contact Support: If you have any questions or require assistance, please send a video detailing your issue to the customer support team for prompt help.

Image: Depusheng's commitment to customer support and product quality.