DI4000 User´s Manual Bedienungsanleitung July 1999 ® ULTRA-DI PRO Version 1.0 www.behringer.
EC-Declaration of Conformity INTERNATIONAL GmbH acc.
SAFETY INSTRUCTIONS CAUTION: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside; refer servicing to qualified personnel. WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture. This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to constitute a risk of shock.
ULTRA-DI PRO Professional 4-Channel Active Direct Inject Box DI4000 s Professional and multi-purpose 4-channel Direct Inject box for stage and studio applications s Ultra-flat frequency response due to renowned BEHRINGER OT-1 transformers s Allows direct connection to speaker outputs for more than 3000 Watts s Ultra-low noise audio operational amplifiers for outstanding sound performance s Prevents hum and noise pick up due to special transformer decoupling s Converts unbalanced line inputs to balanced o
FOREWORD Dear Customer, Welcome to the team of ULTRA-DI PRO users and thank you very much for expressing your confidence in BEHRINGER products by purchasing this DI box. It is one of my most pleasant tasks to write this letter to you, because it is the culmination of many months of hard work delivered by our engineering team to reach a very ambitious goal: making an outstanding device that will become a standard tool used by studios and P.A. companies.
TABLE OF CONTENTS 1. INTRODUCTION ...................................................................................................................... 7 1.1 Before you begin ............................................................................................................................ 8 1.2 Control elements ............................................................................................................................. 8 2. APPLICATIONS ...........................................
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 dont 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. Low frequency signals (e.g.
1.1 Before you begin 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.
E Fig. 1.2: Rear panel elements of the BEHRINGER ULTRA-DI PRO LINK. This is the unbalanced parallel output of the ULTRA-DI PRO. Connect this to the input of the backline or monitor amplifier. INPUT. Connect the source to this 1/4" jack to input the signal. + And The -20 dB ATTENUATION switches greatly increase the operating range of the ULTRA-DI PRO. From the low level signals of a high impedance guitar to the hot speaker terminals of a P.A. amplifier. Depressing both will give 40 dB attenuation.
2. APPLICATIONS 2.1 Tapping signal from a (bass)guitar Fig. 2.1: Guitar ß DI box ß Guitar Amp/Mixer This figure shows the standard application of any Direct Inject box. The signal to the amplifier is unaffected, it is just tapped off to be routed to the microphone input of the mixer. Especially bass guitars benefit from this application. It is difficult to find a microphone which handles high level low frequencies well and with a linear frequency response.
2.3 Converting a microphone signal E Fig. 2.3: Connecting a microphone Sometimes all thats 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 consoles mic input. 2.
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.
Output Cable Input Ground Pin 1 2 1 1 Shield (+) Signal + Hum (-) Signal + Hum Pin 2 = (+) Signal 3 2 Positive (+)Hum + Signal Negative (-)Hum + Signal E 3 Pin 3 = (-) Signal 2 x Signal = Signal + 6 dB RFI and Hum Fig. 3.
4. SPECIFICATIONS Audio input Connectors Type Impedance Max. input level XLR and 1/4" jack DC-decoupled, unbalanced input max. 220 kOhm +20/+40/+60 dBu Audio output Connectors Type Impedance Max.
5. WARRANTY § 1 WARRANTY CARD To be protected by this warranty, the buyer must complete and return the enclosed warranty card (signed/stamped by retail dealer) within 14 days of the date of purchase to BEHRINGER INTERNATIONAL (address see § 3). Failure to return the card in due time (date as per postmark) will void any extended warranty claims. § 2 WARRANTY 1.
