Item #0082439 Model #000-49000-00010

Behringer ULTRA-DI DI400P Passive Direct Box Standard

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A rugged direct box for clean, noise-free signal transfer.

The Behringer ULTRA-DI DI400P direct box lets you get pure, noise-free sound from your instrument or amplifier to the mixing board. With the Behringer DI400P passive D.I. box, you can connect unbalanced signals and convert them to balanced outputs, eliminating unwanted noise in the process. This single-channel direct box features a high-performance transformer that allows you to use very long cables without losing those critical high frequencies.

Transfer Signals Without Loss

The Behringer ULTRA-DI DI400P utilizes a high-quality transformer that enables you to send signals over extended cable runs without degrading the sound quality. The top-notch transformer maintains your tone by accurately transferring the instrument's full-frequency range to the mixer or recording interface with precision and clarity. You get pristine reproduction of every subtle nuance.

Eliminate Annoying Noise

Hum and buzz can ruin your best takes. The ULTRA-DI DI400P's ground lift switch blocks ground loop noise by isolating the audio ground from the chassis ground. Flick it on and those irksome hums immediately vanish, leaving you with nothing but pure signal.

Flexible Connectivity Options With XLR and 1/4" Outputs

The Behringer ULTRA-DI DI400P equipped with both XLR and 1/4" outputs gives you flexible connectivity. Use the low-noise XLR output to send your signal to the mixing console or audio interface. The parallel 1/4" jack lets you plug in effects pedals or amps. With both balanced and unbalanced outputs, you have all your options covered.

  • Frequency response: 40Hz (-3) to 20Khz
  • THD +N (distortion): 0.0007% @ 1kHz input level +dBu
  • Input: 1/4" TS (unbalanced)
  • Level change (input to output): -20dB
  • Output: Balanced XLR
  • Impedance ratio (input to output): 110:1
  • Dimensions (HxWxD): 1.4" x 4.7" x 2.6", (35 mm x 120 mm x 66 mm)
  • Weight Approx.: .44 lb. (.02 kg)


  • Connects 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
  • Ground lift switch eliminates typical ground loop problems such as hum
  • High-performance transformer for ultimate signal integrity
  • Ultracompact, all-metal and road-suitable housing