AUTOCOM PRO MDX1400 SAFETY INSTRUCTIONS CAUTION: To reduce the risk of electric 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 electric shock, do not expose this appliance to rain or moisture.
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Switchable sidechain input with sidechain monitor function s Operating level switchable from +4 dBu to -10 dBV s Servo-balanced gold-plated XLR and 1/4" TRS connectors s High-grade output transformer BEHRINGER OT-1 can be retrofitted s Manufactured under ISO9000 certified management system Downloaded from www.Manualslib.com...
AUTOCOM PRO MDX1400 TABLE OF CONTENT 1. INTRODUCTION........................6 1.1 The Design Concept ........................6 1.2 Before you begin ..........................7 2. CONTROLS ..........................8 2.1 Expander/Gate Section ........................8 2.2 Compressor Section ........................9 2.3 Dynamic Enhancer Section ......................10 2.4 Rear Panel Control Elements Of The AUTOCOM PRO ..............
Additionally, we have succeeded in refining the audio properties as well as the circuit topology. For the first time, the AUTOCOM PRO MDX1400 uses SMD technology (Surface Mounted Device). These sub-miniature components known from aerospace technology allow for an extreme packing density, plus improve the units reliability.
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.
2. CONTROLS Fig. 2.1: AUTOCOM PRO front panel The BEHRINGER AUTOCOM PRO has two identical channels. Each channel is equipped with 8 backlit push-buttons, 7 rotary controls and 26 LEDs. The COUPLE switch is for stereo operation: By engaging the COUPLE switch the AUTOCOM PRO is converted to stereo mode, where the controls of the left channel take over the control of both audio channels.
AUTOCOM PRO MDX1400 2.2 Compressor Section Fig. 2.3: Control elements of the compressor section The THRESHOLD control sets the threshold point for the compressor section. It has a range of -40 to +20 dB. If the channel is switched to INTERACTIVE mode (Interactive Knee Adaptation), a Soft Knee...
Or use our online registration option available on the Internet at www.behringer.com. FUSE HOLDER / VOLTAGE SELECTOR. Please make sure that your local voltage matches the voltage indicated on the unit, before you attempt to connect and operate the AUTOCOM PRO.
3. APPLICATIONS In this section, several typical applications of the BEHRINGER AUTOCOM PRO are discussed. The following basic settings can resolve most dynamic problems. They are the ideal starting point. Please take the time to study the application examples carefully, in order to be able to make full use of the AUTOCOM PROs capabilities in the future.
Noise gates however, can be seen as high ratio expanders. If the signal falls below the threshold, it is radically attenuated. The BEHRINGER AUTOCOM PRO is equipped with a newly developed IRC (Interactive Ratio Control) Expander, the ratio of which is automatically adjusted dependent on the program material. The response characteristics of conventional expanders tend to cut into the signal abruptly and the result of this is unacceptable most of the time.
Patch the BEHRINGER AUTOCOM PRO into a snare drum channel for example and adjust it so that triggering only occurs on snare hits. Each mic should be set to its maximum operating level, monitored (see SC MON switch) and the THRESHOLD level set so that each snare hit sounds acoustically clean and seperate, as though it was played on its own.
It will prove useful to use the BEHRINGER AUTOCOM PRO as the last component in the chain of effects units and use the noise reduction function of the Expander/Gate section. We recommend that you use a slow release time in order to maintain the natural reverb.
AUTOCOM PRO MDX1400 Output Gain 0 dB Threshold Ratio 2:1 Hard Knee Ratio 4:1 Limiter oo:1 IKA Curve Input Fig. 3.2: IKA characteristic of the compressor section The new IKA (Interactive Knee Adaptation) circuit prevents aggressive compression, created by high ratios, from sounding too unnatural.
The AUTOCOM PRO MDX1400 offers a solution to this problem that is by much more elegant. The SC Filter switch allows you to activate a highpass filter in the control signal path of the compressor. This filter makes sure that midrange and treble range frequencies are taken into account to a greater extent, and that a low-frequency signal triggers less compression than a midrange/treble signal of comparable level.
AUTOCOM PRO MDX1400 Output 0 dB No Gain Reduction With Enhancer -20 dB 20 dB Gain Reduction Without Enhancer Frequency Fig. 3.3: The frequency response with and without dynamic enhancer 3.4.1 Initial Settings For The Dynamic Enhancer Section Turn the PROCESS control beginning from Off to a value, where you have the impression of a correct frequency response at compression.
It is recommended that you use the Behringer AUTOCOM PRO in order to protect the speaker. Brick Wall peak limiters are not normally necessary for PA systems, as amplifiers and loudspeakers are tolerant of short signal peaks.
4.2.2 Protection Of A System With An Active Crossover For systems using active crossovers, there are two ways to use the BEHRINGER AUTOCOM PRO. The unit may be inserted between the console output and the crossover input. In this application, the BEHRINGER AUTOCOM PRO will process the entire audio frequency spectrum.
When de-essing, simply insert an equalizer not into the audio path but into the sidechain path of the BEHRINGER AUTOCOM PRO. The equalizer is inserted between the SC SEND output and the SC RETURN input of the BEHRINGER AUTOCOM PRO.
5.2.4 Emphasizing Musical Instruments During Recording On the other hand, you can use the BEHRINGER AUTOCOM PRO to bring out an instrument solo or a lead vocal in a cluttered mix. Using the SC MON switch, match the frequencies of the equalizer to the frequencies of the instruments to be emphasized and for this it is best to use a notch filter with a high slope.
Compressor and Dynamic Enhancer sections are switched off. The bass guitar track is connected to the audio chain of the BEHRINGER AUTOCOM PRO, while the bass drum is connected to the SC RETURN input. By activating the SC EXT switch, the bass guitar is now triggered by the bass drum.
The need therefore arises for a fast acting automatic gain control system which will constantly monitor the signals and which will always adjust the gain to maximize the signal-to-noise ratio without incurring signal distortion. This device is called a compressor or limiter. This system is a part of the BEHRINGER AUTOCOM PRO. Compressors/Limiters By measuring the dynamic range of musical instruments in live recording situations, you will find that extreme amplitudes occur which often lead to overload in subsequent signal processing equipment.
7.1 Inputs And Outputs 7.1.1 Balanced Inputs And Outputs As standard, the BEHRINGER AUTOCOM PRO is installed with electronically servo-balanced inputs and outputs. The new circuit design features automatic hum and noise reduction for balanced signals and thus allows for trouble-free operation, even at high operating levels. Externally induced mains hum etc. will be effectively suppressed.
The BEHRINGER transformer OT-1 is designed to the highest exacting standards and is available as an accessory. The audio inputs and outputs on the BEHRINGER AUTOCOM PRO are fully balanced. If possible, connect the unit to other devices in a balanced configuration to allow for maximum interference immunity.
3.4 kg BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may differ from those listed or illustrated.
(user included) will void the warranty. at its sole discretion, either repair or replace the product. 6. If an inspection of the product by BEHRINGER shows that the 2. If the warranty claim proves to be justified, the product will be defect in question is not covered by the warranty, the inspection returned to the user freight prepaid.