Behringer ULTRA-DI DI400P Manual

BEHRINGER ULTRA-DI DI400P

Thank you for showing confidence in BEHRINGER products by purchasing the ULTRA-DI DI400P±

The DI400P is a high-performance passive direct injection box±

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Please read the safety instructions that appear at the end of this document±

Being on stage or in the studio, musicians often look for ways to connect certain signal sources

directly to the mixing console± Even though this approach has obvious advantages, there are still

some technical hurdles obstructing its implementation± For example, keyboards seldom feature

balanced outputs, and guitars can not be directly connected to mixing consoles because of the

high impedance of guitar signals±

The DI400P lets you

directly

tap into a high-impedance, unbalanced signal²for example, the signal

between a guitar and a guitar amp± From there on, you can feed the signal directly to a mixing console±

1± CONTROL ELEMENTS AND CONNECTIONS

Fig± 1: Top view

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PARALLEL IN/OUT

(¼" TS): These connectors are used for connecting unbalanced

signal sources± Because both connectors are wired in parallel, they can be used both as

an input and as a direct output to loop the signal through to a monitor amplifier±

OUTPUT

(XLR): This is the balanced mic-level output± Use a high-quality balanced microphone

cable to establish connection±

Using the

GND LIFT

(ground lift) switch, you can fully separate input and output grounding±

Depending on how the equipment to which your DI400P is connected is grounded, using

the GND LIFT switch lets you lower hum noise or ground loops± When the GND LIFT switch

is in LIFT position, the ground connection is interrupted±

The

SERIAL NUMBER

of the DI400P is located at the bottom±

2± CONNECTING AN INSTRUMENT SIGNAL

Fig± 2: Guitar

ß

DI-box

ß

guitar amp/mixer

This illustration shows the application of a DI-box± The signal feeding the amplifier remains

unchanged; it is simply taken and routed into the amp± The low-impedance balanced signal is

forwarded to the mic input of the mixing console± This application has its advantages particularly

with bass guitars, because very few microphones can linearly transmit bass frequencies with

high signal levels± If you are using effects, insert the DI400P after the effects device, so that you

can monitor the effects via the PA system or the recording as well±