Behringer PROMIC2200 manuale d’uso

Users Manual Version 1.2 M arch 2001 www.behringer.com ENGLISH ULTRAGAIN ® PRO MIC2200[...]

2 UL TRAGAIN PRO MIC2200 This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to con- stitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and mainte- nance instructions in the accompanying literature. Read the manu[...]

3 UL TRAGAIN PRO MIC2200 FOREWORD Dear Customer, Welcome to the team of ULTRAGAIN PRO users and thank you very much for expressing your confidence in BEHRINGER products by purchasing this unit. 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[...]

4 UL TRAGAIN PRO MIC2200 MIC2200 ULTRAGAIN PRO Ultra low-noise discrete Microphone/Line Preamplifier s Mic input stages are based on super-high quality, discrete conjugate transistor pair circuitry s Ultra-wide bandwidth from 2 Hz to 200 kHz for open sound s Built-in high-quality vacuum tube for outstanding, ultra-musical tube sound s Our spe[...]

5 UL TRAGAIN PRO MIC2200 T ABLE OF CONTENTS 1 . INTRODUCTION . . ................................................................................................................... 6 1.1 T echnical background ...................................................................................................................... 7 1. 1.1 Noise as a ph[...]

6 UL TRAGAIN PRO MIC2200 1. INTRODUCTION With the ULTRAGAIN PRO you have purchased an extremely musical and flexible microphone preamplifier. Our ULTRAGAIN range of devices has been a hit ever since we introduced our first model some 5 years ago. This high-end microphone preamp is based on many years of experience and findings in amplifier technolo[...]

7 UL TRAGAIN PRO MIC2200 1. 1 Technical background By employing current modern analog technology it is possible to manufacture audio equipment with a dynamic range of up to 130 dB. In contrast to analog techniques, the dynamic range of digital equipment is approximately 25 dB less. With conventional record and tape recorder technology, as well as b[...]

8 UL TRAGAIN PRO MIC2200 It is therefore useful to keep the operating level as high as possible without risking signal distortion in order to achieve optimum transmission quality. t P/dB +20 0 -20 -40 -60 -80 Clipping Headroom Operating level Effective SNR Noise floor Fig. 1.2: The interactive relationship between the operating level and the headro[...]

9 UL TRAGAIN PRO MIC2200 With the introduction of semiconductor technologies in the field of audio amplification, it soon became clear that the tube would have to give way to the transistor, as this device featured an enormously enhanced signal- to-noise ratio, required a less complex power supply and yielded an improved frequency response. Plus, s[...]

10 UL TRAGAIN PRO MIC2200 Fig. 1.5: pentode In a triode the capacitance between grid and anode is a problem with regard to high frequencies and large amplification factors. For this reason, the pentode has a positively charged screen grid between the control grid and the anode. However, the positive charge of the screen grid attracts electrons emit[...]

11 UL TRAGAIN PRO MIC2200 1.2 .4 The best of both worlds Despite many efforts neither manufacturers nor developers have succeeded so far in simulating these positive properties of the tube by means of other devices. Additionally, the natural capabilities of the tube to act as a soft limiter can only be mimicked with highly sophisticated circuitry. [...]

12 UL TRAGAIN PRO MIC2200 3. 1 Rack mounting The BEHRINGER ULTRAGAIN PRO fits into one standard 19" rack unit of space (1 3/4"). 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 ULTRAGAIN PRO on high temper[...]

13 UL TRAGAIN PRO MIC2200 + Never use unbalanced XLR connections with microphone cables, as this would short-circuit any phantom power transmitted over these cables! 4. CONTROL ELEMENTS 4. 1 Front panel control elements Fig. 4.1: Control elements on the front panel 1 This +48 V switch activates the +48 V phantom power circuit that uses the signal l[...]

14 UL TRAGAIN PRO MIC2200 9 The x 0.1 switch lowers the working range of the FREQUENCY control to 10 - 200 Hz, so that you can process the bass end of the audio spectrum. 10 The x 10 switch raises the working range of the FREQUENCY control to 1 - 20 kHz, so that you can process the treble end of the audio spectrum. 11 The BANDWIDTH control determin[...]

15 UL TRAGAIN PRO MIC2200 5. APPLICATIONS This section describes some typical applications of the BEHRINGER ULTRAGAIN PRO. Starting from the following basic settings you can use it to solve the majority of audio problems. Please take your time to study the application examples, so as to be able to fully exploit the ULTRAGAIN PRO and its variety of [...]

16 UL TRAGAIN PRO MIC2200 before the microphone preamp starts overloading. If distortion/overloading occurs at high volume levels, you should reduce the gain with the MIC GAIN control. 5.1.3 PHASE REV. switch The PHASE REV. switch reverses the audio signals phase by 180°. Usually, you wont need this switch. However, in some cases, it might b[...]

17 UL TRAGAIN PRO MIC2200 Never switch on the +48 V supply when you use unbalanced microphones, as this could cause electrical damage. Some people hold that the sound of dynamic microphones is affected when the +48 V supply is on, or that ribbon microphones cannot be operated from an input equipped with +48 V phantom power. None of these statements[...]

18 UL TRAGAIN PRO MIC2200 Notching out specific interference frequencies and narrow-band resonances (uncontrolled frequency peaks) is one of the ULTRAGAIN PROs major tasks: by tuning the EQ in to the precise trouble frequency, interference such as hum and noise caused by air conditioners, etc. can be eliminated without affecting adjacent f[...]

19 UL TRAGAIN PRO MIC2200 6. SPECIFICATIONS AUDIO INPUT Microphone Connectors X L R T ype transformerless, DC-decoupled input Impedance 3 k Ohms balanced Maximum input level +10 dBu balanced and unbalanced C M R R typ. 40 dB, >55 dB @ 1 kHz Line Connectors XLR and 1/4" jack T ype transformerless, DC-decoupled input Impedance 60 kOhms balanc[...]

20 UL TRAGAIN PRO MIC2200 7 . WARRANTY 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 S p[...]