The Behringer DI400P Passive Direct Box lets you connect instruments or amplifier outputs to your mixer. The Ultra-DI converts any unbalanced signal to a balanced signal and eliminates unwanted noise. With its high-performance transformer, the Behringer Ultra-DI also allows you to use very long cables without the loss of high frequencies.

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