User Manual ULTRA-DI PRO DI4000 Professional 4-Channel Active DI-Box
ULTRA-DI PRO DI4000 User Manual Table of Contents Important Safety Instructions....................................... 3 Legal Disclaimer.............................................................. 3 Limited warranty............................................................. 3 1. Introduction................................................................ 4 1.1 Before you begin.................................................................. 4 1.2 Online registration................................
ULTRA-DI PRO DI4000 User Manual Important Safety Instructions Terminals marked with this symbol carry electrical current of sufficient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with ¼" TS or twist-locking plugs pre-installed. All other installation or modification should be performed only by qualified personnel.
ULTRA-DI PRO DI4000 User Manual 1. Introduction Whether you are on the stage or in the studio, you often find that you need to connect an audio source to your mixing console, but you don’t have the appropriate connectors. For example, only few keyboards feature balanced outputs; guitars should not be connected directly to the console; and placing a microphone in front of an amp is not always an ideal solution, because the mic will pick up unwanted signals from other instruments, too.
ULTRA-DI PRO DI4000 User Manual 1.3 Control elements The BEHRINGER ULTRA-DI PRO has four identical channels. The control elements are identical on all channels. (6) (7) by fuses of the same type and rating. Some models allow for inserting the fuse holder in two different positions, in order to switch over from 230 V to 115 V operation, and vice versa. Please note that for 115 V operation outside Europe, you need to use a fuse of a higher rating (see chapter 3 “Installation”).
ULTRA-DI PRO DI4000 User Manual This configuration can be used with a keyboard, DJ-mixer, headphone output, drum kit or any (stereo or mono) line source. In all cases where you want to run long lines, for instance to the FOH (Front Of House) desk. The signal can be linked through to another amplifier, if the keyboard player/ DJ/etc. wants to have a monitor connected independent of the foldback mix. The ULTRA-DI PRO acts as both a ground isolator and an unbalanced to balanced converter. 2.
ULTRA-DI PRO DI4000 User Manual Output Cable Input Pin 1 Ground 2 1 3 Pin 2 = (+) Signal Shield 1 (+) Signal + Hum 2 3 (-) Signal + Hum Pin 3 = (-) Signal Positive (+) Hum + Signal Negative (-) Hum + Signal 2 x Signal = Signal + 6 dB RFI and Hum Fig. 3.
ULTRA-DI PRO DI4000 User Manual 4. Specifications Audio Input Connectors XLR and 1/4" jack Type DC-decoupled, unbalanced input Impedance max. 220 kOhm Max. input level +20/+40/+60 dBu Audio Output Connectors XLR Type transformer-balanced output stage Impedance 600 Ohms balanced Max.
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