Behringer DI4000 V2 4-Channel Active DI-Box

The Behringer DI4000 V2 is a professional 4-channel active direct injection box engineered for both stage and studio environments. This versatile unit effectively converts unbalanced line-level signals into balanced low-impedance outputs, which is essential for maintaining signal integrity and preventing noise interference when running long cable lengths. With its robust construction and high-quality internal components, it provides a reliable solution for connecting various audio sources directly to mixing consoles, stage boxes, or professional audio interfaces.

Advantages

The primary benefit of the DI4000 V2 is its ability to preserve the original tone of your instruments while eliminating ground loops and hum through its integrated ground lift switches. The active circuitry ensures a wide frequency response and high headroom, allowing for clean signal reproduction even with high-output sources. Each channel offers independent control over input attenuation, phase reversal, and ground lift, providing the flexibility needed to handle diverse signal types without compromising audio quality.

Suitable for

• Connecting electric guitars and basses directly to a mixing console
• Integrating keyboards and synthesizers into a professional sound system
• Managing multiple audio signals in live performance setups
• Recording studio applications requiring clean, balanced signal paths

When it may not be suitable

This active DI-box requires a power source to function, meaning it may not be the most convenient choice for setups where power outlets are unavailable or where a passive DI-box would suffice for simple signal conversion tasks. Additionally, if you are working exclusively with low-impedance microphone signals, the specific features of this unit may be redundant for your needs.

Key specifications

• Four independent channels in a single rack-mountable unit
• Active circuitry for high-impedance signal conversion
• Switchable input attenuation for high-level signals
• Phase reversal and ground lift switches per channel
• Balanced XLR outputs for long-distance signal transmission

How to use

To use the DI4000 V2, connect your instrument or line-level device to the input jack on the front or rear panel. Connect the balanced XLR output to your mixing console or audio interface using a standard microphone cable. Adjust the input attenuation if the signal is clipping, and use the ground lift switch if you encounter audible hum or ground loop noise. Ensure the unit is connected to a stable power source before engaging the signal path.

What to consider before purchase

• Ensure your rack setup has sufficient space for a 1U rack-mount device
• Verify that you have enough XLR cables for your intended channel count
• Check if your audio sources require active buffering for optimal performance

Usage recommendations

For the best audio performance, always use high-quality shielded cables to connect your instruments to the DI-box inputs. If you experience persistent hum, engage the ground lift switch on the specific channel causing the issue before adjusting other settings.