B2031 User´s Manual Bedienungsanleitung January 2000 TRUTH Version 1.1 www.behringer.
EG-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.
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 very ambitious goal: making an outstanding reference studio monitor that will become a standard tool.
TRUTH 2-way active high-resolution studio monitor B2031 s Ultra-linear frequency response from 50 Hz to 21 kHz E 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.
TABLE OF CONTENT 1. INTRODUCTION ...................................................................................................................... 7 1.1 The concept .................................................................................................................................... 7 1.2 Before you start .............................................................................................................................. 7 1.3 Control elements ....................................
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 away from the pressures of a recording session, in order to get a feel for it.
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 face downwards, so as to allow you to place the speaker as closely to a wall as possible. 3 INPUT.
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. E Fig. 1.4: Rear panel control elements INPUT TRIM. Use this control to adapt the TRUTH's input sensitivity to the signal source. POWER MODE. This switch allows you to toggle between "ON", "OFF" and "AUTO" power-up modes. MUTE LOW.
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 the speaker after signal pauses of more than five minutes. Function: The switch for the automatic power-up system has three positions.
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 worth the trouble. Place the TRUTH on a flat and stable surface, if possible use a dedicated speaker stand.
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 illustration (i.e. woofers closer to each other), to allow for an improved stereo image. Fig. 2.
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 level in steps of 2 dB. Since every room and speaker setup are unique in their acoustic properties, we cannot provide more specific information here.
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 BEHRINGER, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted.
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 3 Pin 3 = (-) Signal E 2 x Signal = Signal + 6 dB RFI and Hum Fig. 3.
4. SPECIFICATIONS Audio inputs XLR 1/4" jack Impedance Max. input level servo-balanced input servo-balanced input 20 kOhms +22 dBu Loudspeaker Tweeter Woofer 25 mm ferrofluid-cooled dome 22 cm (8.75") polycarbonate diaphragm Amplifiers Low frequency High frequency Noise (SPL @ 10 cm) max. 150 watts max. 75 watts <10 dBA @ 1 m (each) Crossover Type Crossover frequency active, 4th order Linkwitz-Riley filter 2 kHz System specifications Bandwidth Sound pressure level 50 Hz to 21 kHz 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.
