Behringer B2031 инструкция обслуживания

1 E www.behringer.com Version 1.1 January 2000 D User´s Manual Bedienungsanleitung TRUTH B2031[...]

2 acc. to the Directives 89/336/EWG and 73/23/EWG We, BEHRINGER INTERNA TIONAL GmbH Hanns-Martin-Schleyer-Straße 36-38 D - 47877 Willich Name and address of the manufacturer or the introducer of the product on the market who is established in the EC herewith take the sole responsibility to confirm that the product: TRUTH B2031 T ype designation an[...]

3 E 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. This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Read the manual. SAFETY INSTRUCTIONS C[...]

4 FOREWORD Dear Customer, Welcome to the team of TRUTH B2031 users and thank you very much for expressing your confidence in BEHRINGER products by purchasing this studio monitor. 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 ver[...]

5 E B2031 TRUTH 2-way active high-resolution studio monitor s Ultra-linear frequency response from 50 Hz to 21 kHz s Two built-in high power amps with 150/75 Watts and enormous power reserves s Extremely high-resolution tweeter with ferrofluid-cooled titanium dome s Long-throw 8.75" woofer with special polycarbonate diaphragm and sturdy cast a[...]

6 T ABLE OF CONTENT 1. INTRODUCTION ...................................................................................................................... 7 1.1 The concept ................................................................................................................. ................... 7 1.2 Before you start ....................[...]

7 E 1. INTRODUCTION Congratulations! With our new BEHRINGER TRUTH B2031 you have purchased one of the best high-resolution active studio monitors available. It is a tool that reproduces your program material with highest fidelity and balance, positioning sound sources accurately on the stereo basis. We recommend that you experiment with your B2031 [...]

8 1.3 Control elements The control elements described in the following are the same on both speakers. Fig. 1.1: Front panel display elements 1 ON . This LED lights up as soon as you switch on the speaker. 2 LIMIT . Lights up as soon as one of the built-in protections is activated. Fig. 1.2: Rear panel input connectors All connectors of the TRUTH fa[...]

9 E 7 SERIAL NUMBER . Please take the time to have the warranty card filled out completely by your specialized dealer, and return it within 14 days after the date of purchase, so as to be entitled to benefit from our extended warranty. Fig. 1.4: Rear panel control elements INPUT TRIM . Use this control to adapt the TRUTH's input sensitivity to[...]

10 2. APPLICATIONS 2. 1 Connection Use the enclosed power cord to connect the B2031 to the mains. To avoid ground loops, both speakers and the mixing console should be fed from the same outlet. For your convenience, the TRUTH features an automatic power-up system which activates the B2031 as soon as a signal is present on its input, and deactivates[...]

11 E 2.3 Recommended setup Even though the B2031 is an excellent active speaker, it needs to be set up with great care, because even the built-in room adaptation facility cannot make up for poor positioning of the speaker. Please try to heed the following suggestions. As the TRUTH will give you an even better sound and higher resolution, it will be[...]

12 Fig. 2.2: Correct speaker setup This effect can be reduced by turning the speakers towards the listener. To make reflections from ceiling or floor less likely, the tweeters should be on the same height as your ears. Please note that the TRUTH should be operated vertically. Where this is impossible, place it horizontally as shown in the illustrat[...]

13 E Fig. 2.4: Rear wall legending If you are still having problems, you could try the following: The ROOM COMPENSATION switch allows you to lower the bass range, depending on the speaker position. Ex-factory, the switch is set to a neutral position. If you've set up the TRUTH close to the wall or in a corner, try reducing the low-frequency le[...]

14 3. INSTALLATION Your TRUTH was carefully packed in the factory and the packaging is designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the carton 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 BEHRINGE[...]

15 E 1 2 3 2 1 3 Pin 1 Cable Input Output Pin 2 = (+) Signal Positive Pin 3 = (-) Signal Shield (+) Signal + Hum (-) Signal + Hum Negative (+)Hum + Signal (-)Hum + Signal 2 x Signal Ground RFI and Hum = Signal + 6 dB Fig. 3.1: Compensation of interference with balanced connections Unbalanced use of mono 1/4" jack plugs Ring Balanced use of ste[...]

16 4. SPECIFICATIONS Audio inputs X LR servo-balanced input 1/4" jack servo-balanced input Impedance 20 kOhms Max. input level +22 dBu Loudspeaker Tweeter 2 5 m m f e r r o f lu i d - c o o l ed dome Woofer 22 c m (8.75") polycarbonate diaphragm Amplifiers Low frequency max. 150 watts High frequency max. 75 watts Noise (SPL @ 10 cm) <1[...]

17 E The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH. BEHRING[...]