Behringer UB1222FX-PRO User Manual - Page 5

EURORACK UB1222FX-PRO This way, what once used to be a labor-intensive search for feedback frequencies is now an activity that even a child could master. IMP “INVISIBLE” MIC PREAMP The microphone channels are fitted with BEHRINGER’s brand new high-end IMP INVISIBLE MIC PREAMPs that boast the following features: s 130 dB dynamic range for an incredible amount of headroom, s a bandwidth ranging from below 10 Hz to over 200 kHz for crystal-clear reproduction of even the finest nuances, s the extremely low-noise and distortionless circuitry guarantees absolutely natural and transparent signal reproduction, s they are perfectly matched to every conceivable microphone with up to 60 dB gain and +48 volt phantom power supply and s they enable full utilisation of the greatly extended dynamic range of your 24-bit/192 kHz HD recorder, thereby maintaining optimal audio quality. Additionally, your UB mixing console has an effects processor with 24-bit A/D and D/A converters included, which gives you 100 presets producing first-class reverb, delay and modulation effects plus numerous multi-effects in excellent audio quality. The mixing consoles of the PRO series feature a state of the art, integrated switch-mode power supply. One of the great advantages is that (compared to conventional circuits) a switchmode power supply adapts to mains voltages between 100 and 240 volts automatically. Furthermore, due to its much greater efficiency, it consumes much less energy than a conventional power supply unit. CAUTION! + We would like to draw your attention to the fact that extreme volumes may damage your hearing and/or your headphones or loudspeakers. Turn the MAIN MIX faders and the PHIONES control in the main section fully down before you switch on the unit. Always be careful to set the appropriate volume. 1.1 General mixing console functions A mixing console fulfils three main functions: s Signal processing: Preamplification Microphones convert sound waves into voltage that has to be amplified several-fold; then, this voltage is turned into sound that is reproduced in a loudspeaker. Because microphone capsules are very delicate in their construction, output voltage is very low and therefore susceptible to interference. Therefore, mic signal voltage is amplified directly at the mixer input to a higher signal level that is less prone to interference. This higher, interference-safe signal level has to be achieved through amplification using an amplifier of the highest quality in order to amplify the signal and add as little noise to it as possible. The IMP “Invisible” Mic Preamp performs this role beautifully, leaving no traces of noise or sound coloration. Interference that could take place at the preamplification level could affect signal quality and purity, and would then be passed on to all other devices, resulting in inaccurate sounding program during recording or playback. Level-setting Signals fed into the mixer using a DI-box (Direct Injection) or the output of a sound card or a keyboard, often have to be adjusted to the operating level of your mixing console. Frequency response correction Using the equalizers found in each channel strip, you can simply, quickly and effectively adjust the way a signal sounds. Effects mixing In addition to the effects processor contained in your mixer, using the insert connectors on the mono channels and both aux busses lets you insert additional signal processors into your signal path. s Signal distribution: Individual signals adjusted at each channel strip are laid out at the aux sends and returns, and are either fed into external effects processors or fed back to the internal effects processor. Then, the signals are brought back into the main mix either via the aux return connectors or via direct internal wiring. The mix for the on-stage musicians is also created using the aux sends (monitor mix). Similarly, for example, signals for recording equipment, power amplifiers, headphones and 2-track outputs can also be taken. s Mix: All other mixing console functions fall under this vital category. Creating a mix means primarily adjusting the volume levels of individual instruments and voices to one another as well as giving them the appropriate weight within the overall frequency spectrum. Likewise, you’ll have to sensibly spread individual voices across the stereo image of a signal. At the end of this process, adjusting the level of the entire mix to other equipment in the signal path is required (e. g. recorder/crossover/amplifier). The interface of BEHRINGER mixing consoles is optimized for these tasks, enabling you to easily keep track of the signal path. 1.2 The user’s manual The user’s manual is designed to give you both an overview of the controls, as well as detailed information on how to use them. In order to help you understand the links between the controls, we have arranged them in groups according to their function. If you need to know more about specific issues, please visit our website at http://www.behringer.com. Additional information and explanations about various music industry/audio technology terminology can be found on individual product pages as well as in the glossary in the ULTRANET area of www.behringer.com. + The block diagram supplied with the mixing console gives you an overview of the connections between the inputs and outputs, as well as the associated switches and controls. For the moment, just try and trace the signal path from the microphone input to the MON SEND connector. Don’t be put off by the huge range of possibilities; it’s easier than you think! If you look at the overview of the controls at the same time, you’ll be able to quickly familiarize yourself with your mixing console and you’ll soon be making the most of all its many possibilities. 1.3 Before you get started 1.3.1 Shipment Your mixing console was carefully packed in the factory to guarantee safe transport. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred during 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. 1. INTRODUCTION 5