Manuale d’uso / di manutenzione del prodotto PROMIC2200 del fabbricante Behringer
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Users 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.
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.
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 .
5 UL TRAGAIN PRO MIC2200 T ABLE OF CONTENTS 1 . INTRODUCTION . . ................................................................................................................... 6 1.1 T echnical background ..........................................
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 signals phase by 180°.
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.
18 UL TRAGAIN PRO MIC2200 Notching out specific interference frequencies and narrow-band resonances (uncontrolled frequency peaks) is one of the ULTRAGAIN PROs major tasks: by tuning the EQ in to the precise trouble frequency, interference such as hum and noise caused by air conditioners, etc.
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.
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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Behringer PROMIC2200 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Behringer PROMIC2200 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Behringer PROMIC2200 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Behringer PROMIC2200 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Behringer PROMIC2200, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Behringer PROMIC2200.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Behringer PROMIC2200. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Behringer PROMIC2200 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
