Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Behringer DDM4000 Digital Pro Mixer. Please read this manual thoroughly before operating the device to ensure proper use and to maximize its performance and longevity.

Figure 1: Behringer DDM4000 Digital Pro Mixer Front Panel Overview
Safety Instructions
Always observe the following safety precautions:
- Do not open the device casing. There are no user-serviceable parts inside.
- Do not expose the device to rain or moisture.
- Ensure proper ventilation around the unit.
- Use only the specified power supply.
- Disconnect power before cleaning or moving the unit.
Setup
1. Unpacking and Inspection
Carefully unpack the mixer and inspect it for any signs of damage during transit. Retain the original packaging for future transport or storage.
2. Power Connection
Connect the supplied power cable to the mixer's power input and then to a suitable AC outlet. Ensure the power switch is in the OFF position before connecting.

Figure 2: Rear Panel Connections
3. Audio Connections
The DDM4000 features multiple input and output options:
- Phono/Line Inputs: Connect turntables or CD players to the 4 stereo channels. Each channel supports both Phono (RCA) and Line (RCA) inputs.
- Microphone Inputs: Two microphone inputs with Gain, EQ, and Talk function.
- Main Output: Connect to your main PA system or amplifier via XLR or RCA.
- Booth Output: For monitoring in the DJ booth.
- Record Output: For connecting to a recording device.
- Digital Output (S/PDIF): For digital audio connection.

Figure 3: Detailed View of Rear Panel Inputs/Outputs
4. MIDI Connection (Optional)
The DDM4000 can function as a MIDI controller. Connect a standard MIDI cable from the mixer's MIDI OUT to your computer's MIDI IN (or MIDI interface) to control DJ software.
Operating Instructions
1. Basic Operation
Familiarize yourself with the main controls:
- Channel Faders: Adjust the volume of individual audio channels.
- Crossfader: Blends between assigned channels (A and B).
- EQ Knobs: Adjust bass, mid, and treble frequencies for each channel.
- Gain Knobs: Adjust input sensitivity for each channel.
- Master Output: Controls the overall volume sent to the main PA system.

Figure 4: Mixer Control Surface
2. FX Sections
The DDM4000 features 4 multi-FX sections. Each section can be assigned to different channels or the master output. Use the dedicated controls to select effects, adjust parameters, and apply them to your mix.
3. Sampler Functionality
The integrated sampler allows for beat-controlled looping, real-time pitch control, and sampler effects. Refer to the on-screen display and dedicated sampler controls for detailed operation.
4. BPM Counters
The dual BPM counters automatically detect and display the tempo of incoming audio signals, aiding in beatmatching.

Figure 5: DDM4000 in Operation
Maintenance
1. Cleaning
Regularly clean the mixer's surface with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and mild detergent, ensuring no liquid enters the unit. Avoid abrasive cleaners.
2. Fader and Knob Care
Keep faders and knobs free from dust and debris. Do not apply excessive force when operating them.
3. Storage
When not in use for extended periods, store the mixer in a cool, dry place, preferably in its original packaging or a protective case.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable disconnected; Power outlet faulty; Fuse blown. | Check power cable connection; Try a different outlet; Replace fuse (refer to specifications for fuse type). |
| No sound output | Incorrect cable connections; Master volume low; Channel faders down; Input source not playing. | Verify all audio connections; Increase Master volume; Raise channel faders; Ensure input source is active. |
| Distorted audio | Input gain too high; Output level too high; Faulty cable. | Reduce input gain; Lower Master or channel output levels; Test with different cables. |
| FX not working | FX not assigned to channel; FX mix level too low. | Ensure FX is assigned to the desired channel/master; Increase FX mix level. |
Specifications
| Feature | Detail |
|---|---|
| Model | DDM4000 |
| Type | Digital DJ Mixer |
| Channels | 5 (4 stereo Phono/Line, 1 Mic) |
| FX Sections | 4 Multi-FX sections |
| Sampler | Beat-synchronized with pitch control |
| BPM Counters | Dual, patented |
| Crossfader | Digital, with flexible assignment |
| MIDI | Full MIDI controller functionality |
| Dimensions (H x W x D) | 3.6 x 5.51 x 4.72 inches |
| Weight | 3.3 pounds |
| Power Source | Corded Electric |
| Connectivity | RCA, TRS, S/PDIF |
Warranty and Support
For warranty information and technical support, please visit the official Behringer website or contact their customer service. Keep your purchase receipt as proof of purchase.
Behringer Official Website: www.behringer.com





