Behringer ULTRA-DI DI20 Manual

ULTRA-DI DI20
1. Welcome to the Behringer Family!
On stage as well as in studios, it is sometimes advantageous to
connect certain sound sources directly to the mixing console.
Sincemany instruments (keyboards, forexample) don’thave balanced
outputs they require a DI-box. Sometimes, evenguitars can’t be
directly connected to mixing consoles because their impedance is
too high.
By using a DI-box, you can directly tap into a high-impedance,
unbalanced signal—forexample, a signal between a guitar and a
guitar amplier. From this point, you can feed this signal directly to
a mixing console.
There are active and passive DI-boxes. A passive DI-box is more
aordable, but its performance is dependent on the impedance of the
device to which it is connected. When the impedance on the mixing
console’s end changes, so does the impedance at the input of the
DI-box. Such DI-boxes only function properly when the connected
impedance values are strictly specied (high at the input, low at
the output). Active DI-boxes are not aected by these impedance
considerations. The input impedance of the DI20 is extremely high,
and it absolutely does not inuence the signal ow through the
DI-box. The output impedance is balanced and always very low,
whereby the signal is far less prone to being aected by noise.
◊ ◊ To prevent damaging your loudspeakers, rst connect
the DI-box and then hook up the respective channel.
The same goes for alternating between battery and
phantom power operating modes.
V 1.0

Behringer ULTRA-DI DI20 Specifications

General

Channels	2
Input Impedance	1 MΩ
THD	< 0.05%
Power Supply	9V battery or phantom power
Ground Lift	Yes
Output Connectors	2 x XLR
Frequency Response	10 Hz to 30 kHz