7ULTRA-DI PRO DI4000 User Manual
2.2Converting the output of a keyboard / DJ-mixer / headphone plug
Microphone Inputs Pan left and right
Fig. 2.2: DJ-mixer | 2 x DI box | mixer |
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.
2.3 Converting a microphone signal
Fig. 2.3: Connecting a microphone
Sometimes all that’s available (especially when all other mics are in use) is an unbalanced high impedance microphone with an unbalanced jack. With the ULTRA-DI PRO long cable runs to the console can be established without fear of picking up noise and hum. Just plug the jack into the input and connect the output to the console’s mic input.
2.4Tapping a signal from a power amplifier output
When no line out is available it is possible to connect an amplifier output directly to the DI4000 (for example, recording direct from a guitar amplifier, TV-speaker, etc). It is possible to connect the output, i.e. an extra speaker output, of up to 3000 Watts to the ULTRA-DI PRO without fear of overloading. Pay attention to the two -20 dB buttons on the ULTRA-DI PRO! Both must be depressed if an amplifier output is connected to the DI4000 input.
+red or positive post
-black or negative post
Out
In
-20 / -40 dB!
Fig. 2.4: Connection to an amplifier output
◊Always make sure the GROUND LIFT is on (no ground link)
when connecting to speaker terminals. This prevents accidental short-circuiting of the amplifier output. Also make sure the tip of the input jack is connected to the red terminal and that the metal housing of the DI4000 has no contact with other equipment.
3. Installation
Your BEHRINGER ULTRA-DI PRO was carefully packed in the factory and the packaging was designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred in transit.
◊If the unit is damaged, please do not return it to us, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted. Shipping claims must be made by the consignee.
3.1 Rack mounting
The BEHRINGER ULTRA-DI PRO fits into one standard 19" rack unit of space. Please allow at least an additional 4" depth for the connectors on the back panel.
◊Be sure that there is enough air space around the unit for cooling and please do not place the ULTRA-DI PRO on high temperature devices such as power amplifiers etc. to avoid overheating.
3.2 Mains connection
The mains connection of the ULTRA-DI PRO is made by using a mains cable and a standard IEC receptacle. It meets all of the international safety certification requirements.
◊Please make sure that all units have a proper ground connection. For your own safety, it is advisable not to remove the ground connection within the units or at the supply, or fail to make this connection at all.
