Behringer

Behringer DI400P Ultra-DI High-Performance Passive DI-Box

4.7 (1902 reviews)

Achieve Pristine Audio with the Ultra-DI DI400PThe Behringer Ultra-DI DI400P is a high-performance passive DI-box designed for professional audio applications. It allows you to connect instruments directly to mixers and recording consoles, ensuring a balanced signal and eliminating unwanted noise...

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*Price sourced from Amazon.com. Last updated:Jun 19, 2026.Price and availability are subject to change.

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Overview

Achieve Pristine Audio with the Ultra-DI DI400P

The Behringer Ultra-DI DI400P is a high-performance passive DI-box designed for professional audio applications. It allows you to connect instruments directly to mixers and recording consoles, ensuring a balanced signal and eliminating unwanted noise.

Specifications:

  • Brand: Behringer
  • Model: DI400P
  • Type: Passive DI-Box
  • Input: Parallel 1/4" In and Out jacks
  • Output: XLR
  • Ground Lift: Yes
  • Transformer: High-performance for signal integrity

Key Features

Connect your guitar or bass directly to your mixer without losing tone due to impedance mismatches, long cables and cycle hum

Converts any unbalanced line-level signal to balanced mic-level output

Provides impedance and signal matching for the direct connection of instruments to amplifiers and mixers

Allows the use of long cables without losing high frequencies

Thru/Out jack lets you send the unbalanced signal to an onstage amplifier while the balanced signal is routed to the mixer

Specifications

Type
Passive DI-Box
Input Signal
Unbalanced line-level
Output Signal
Balanced mic-level
Function
Impedance and signal matching
Connectors
Thru/Out jack

Pros & Cons

👍 Pros

  • Connects instruments directly to a mixer without signal degradation from impedance mismatches or long cables.
  • Effectively converts any unbalanced line-level signal to a balanced mic-level output, ensuring clean audio.
  • Provides crucial impedance and signal matching for optimal direct connection of instruments to amplifiers and mixers.
  • Allows for the use of long cables without experiencing a loss of high frequencies, preserving audio clarity.
  • Features a Thru/Out jack that simultaneously sends the unbalanced signal to an onstage amplifier and the balanced signal to the mixer.

👎 Cons

  • As a passive DI box, it does not offer active signal boosting, which might be preferred for very low-output instruments.
  • The unit's functionality is limited to signal conversion and impedance matching, without additional features like gain control or ground lift switches.
  • Specific dimensions or weight are not provided in the features, making it hard to gauge its portability or footprint.

Frequently Asked Questions

The Behringer DI400P is designed to connect instruments like guitars or basses directly to a mixer, converting unbalanced line-level signals to balanced mic-level outputs and providing impedance matching.
Yes, a key feature of the DI400P is its ability to allow the use of long cables without losing high frequencies, helping to preserve your instrument's tone.
Yes, it includes a Thru/Out jack that allows you to send the unbalanced signal to an onstage amplifier while simultaneously routing the balanced signal to the mixer.
Yes, it is explicitly designed to connect your guitar or bass directly to your mixer without losing tone due to impedance mismatches.
It converts any unbalanced line-level signal into a balanced mic-level output, which is suitable for professional audio setups.