Behringer Super-X Pro CX3400 User Manual Download Page 1

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SUPER-X

PRO

CX3400

www.behringer.de

Version 1.0 December 1999

Users Manual

ENGLISH

All manuals and user guides at all-guides.com

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Summary of Contents for Super-X Pro CX3400

Page 1: ...1 SUPER X PRO CX3400 www behringer de Version 1 0 December 1999 User s Manual ENGLISH All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ... designation and if applicable Article No which refers to this declaration is in accordance with the following standards or standardized documents x EN 60065 x EN 61000 3 2 x EN 55020 x EN 61000 3 3 x EN 55013 The following operation conditions and installation arrangements have to be presumed acc to Operating Manual B Nier President Willich 01 12 1999 Name address date and legally binding signatu...

Page 3: ...ation openings Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliance including amplifiers that produce heat Power Source The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance Grounding or Polarization Precautions should be taken so that the groundin...

Page 4: ... protection s Low Sum function provides low level mono output for subwoofer operation s Adjustable time delay for phase alignment between drivers s CD horn equalization for constant directivity horn compensation s Servo balanced gold plated XLR connectors for all inputs and outputs s Ultra high precision Alps potentiometers for ultimate accuracy and repeatability s Ultra low noise audio operationa...

Page 5: ...ly With your highly competent suggestions for new products you ve greatly contributed to shaping our company and making it successful In return we guarantee you uncompromising quality manufactured under ISO9000 certified management system as well as excellent technical and audio properties at an extremely favorable price All of this will enable you to fully unfold your creativity without being ham...

Page 6: ... input levels 14 3 3 Setting the output levels 14 3 3 1 Finding drop outs in the frequency response 15 3 4 Setting the crossover frequencies 15 3 5 Runtime Correction 15 3 5 1 Background 15 3 5 2 Basics of electronic runtime correction 16 3 5 3 Runtime correction in a P A system using the SUPER X PRO 16 3 6 The limiters of the SUPER X PRO 17 3 6 1 Limiter setup 18 3 7 LOW SUM function 18 3 8 CD HO...

Page 7: ...a limited range of the audio spectrum can accomplish this task with much greater accuracy i e they produce a more regular frequency response and dispersion pattern To operate a speaker system that consists of several loudspeakers for the various frequency ranges you have to provide a variety of input signals for the single speakers For this purpose crossover networks split up the input signal into...

Page 8: ...nd outputs The 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 automatic servo function recognizes the presence of unbalanced connectors and adjusts the nominal level internally to avoid level differences between the input and o...

Page 9: ... range is multiplied by the factor 10 5 DELAY control This control delays the Low signal by as much as 2 ms which is useful to align the speaker systems in phase 6 LOW OUTPUT control Controls the output level of the Low band from 6 to 6 dB 7 LOW PHASE INVERT button This button reverses the polarity of the Low output 8 LOW MUTE button Mutes the Low band 12 HIGH OUTPUT control Controls the output le...

Page 10: ...utton must be pressed the second released Please observe the labels on the rear panel of the unit Always switch off the entire system before you press this button as it produces heavy interference noise that could damage your speakers and or other equipment 9 LOW SUM button In stereo mode the two Low paths can be summed with the LOW SUM button and routed to the Low output of channel 1 which is par...

Page 11: ...t level of the Mid band from 6 to 6 dB 10 MID PHASE INVERT button This button reverses the polarity of the Mid output 11 MID MUTE button Mutes the Mid band 12 HIGH OUTPUT control Controls the output level of the High band from 6 to 6 dB 13 HIGH PHASE INVERT button This button reverses the polarity of the High output 14 HIGH MUTE button Mutes the High band 15 CD HORN button This button provides a s...

Page 12: ...the first LOW CUT button lights up Fig 2 8 Proper selection of the two MODE switches for mono 4 way operation Subsequently the LEDs above the active controls on the front panel light up signaling which controls are active in the operating mode you just selected The functions of these controls can be seen from the first strip label Fig 2 9 Active control elements on the front panel of the SUPER X P...

Page 13: ...0 THRESHOLD control This control determines the limiter threshold 31 LIMITER button This button activates all limiters Whenever the signal surpasses the limiter threshold the LIM LEDs above the Gain control light up signaling that the CX3400 cuts back the output level Fig 2 10 Active control elements on the rear panel of the SUPER X PRO 3 HIGH OUTPUT connector Output for the High band signal 4 HIG...

Page 14: ...l for this application 3 1 3 Your ears When you listen to the overall sound of your system you should walk around in the audience area and try to detect resonance frequencies or cancellations The sound should be optimized for the position where most of the audience will be gathered however without neglecting other areas This often means that the system must be operated in mono Whenever you use tec...

Page 15: ...o account see chapter 3 5 Runtime Correction Never operate speaker horn drivers below the frequency range specified by the manufacturer 3 5 Runtime Correction 3 5 1 Background The ideal transducer would be a point source of sound i e a speaker of infinitely small dimension which could still reproduce the entire frequency spectrum Unfortunately such a sound source is impossible in reality so that w...

Page 16: ...nce when the signal frequency moves away from the crossover frequency 3 5 3 Runtime correction in a P A system using the SUPER X PRO Midrange high midrange tweeter range Before you perform the following steps to correct both runtime and phase you should measure the offset between the drivers in cm and move the cabinets or delay their bands until you think they are aligned correctly This will save ...

Page 17: ...sing a crossover frequency of 171 5 Hz and reversing the polarity of the woofer output will result in an approximate phase correction which can be fine adjusted by applying some delay or shifting the crossover frequency a bit General remarks on runtime correction Only one speaker stack each should be measured and corrected Begin with the highest crossover frequency and work your way downward Once ...

Page 18: ...r In stereo mode the SUPER X PRO can be switched to mono bass mode using the LOW SUM button When the LOW SUM button is pressed the low frequency signal portions in the left and right channels are summed up The output signal is routed to the Low output of channel 1 from where it can be used to drive for instance a sub woofer cabinet 3 8 CD HORN function When a driver radiates into open space via a ...

Page 19: ...move or disable the ground conductor of the unit or of the AC power cable 4 3 Audio connections As a standard the BEHRINGER SUPER X PRO CX3400 is equipped with electronically servo balanced inputs and outputs The circuit design features automatic hum and noise reduction for balanced signals and thus allows for trouble free operation even at highest operating levels Externally induced mains hum etc...

Page 20: ...50k Ohms unbalanced 25k Ohms Max Input level 22 dBu typical balanced or unbalanced CMRR 40 dB typically 55 dB at 1 kHz OUTPUT Connectors XLR Type Electronically servo balanced RF filtered Impedance Balanced 60 Ohms unbalanced 30 Ohms Max Output Level 20 dBm balanced unbalanced 4 INSTALLATION All manuals and user guides at all guides com ...

Page 21: ...esponse above 3 5 kHz Limiter Activates the limiter function for all outputs Rear Panel Xover Frequency Multiplies crossover frequency range by 10 Mode Selects stereo mono and 2 3 4 way operation LF Sum Selects normal stereo or mono summed low frequency operation ON Channel 1 6dB louder Channel 2 the same as before CONTROLS Input Controls the input gain 12 dB Xover Frequency Controls the crossover...

Page 22: ...oprovideproperwarranty service shall not entitle the buyer to claim consequential damages In no event shall the liability of BEHRINGER INTERNATIONAL exceed the invoiced value of the product 7 OTHER WARRANTY RIGHTS This warranty does not exclude or limit the buyer s statutory rights provided by national law in particular any such rights against the seller that arise from a legally effective purchas...

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