Behringer CX3400 User's Manual
Contents
1. Fig 2 6 Active control elements on the front panel of the SUPER X PRO and 16 INPUT control This control adjusts the input gain from 12 to 12 dB LOW CUT button This button activates the 25 Hz high pass filter protecting the woofers against low frequency signals LOW MID XOVER FREQ control This control governs the crossover frequency between the Low and Mid bands When the XOVER FREQUENCY button on the rear of the unit is pressed the frequency range is multiplied by the factor 10 MID HIGH XOVER FREQ control This control governs the crossover frequency between the Mid and High bands DELAY control This control delays the Low signal by as much as 2 ms which is useful to align the speaker systems in phase LOW OUTPUT control Controls the output level of the Low band from 6 to 6 dB LOW PHASE INVERT button This button reverses the polarity of the Low output LOW MUTE button Mutes the Low band MID OUTPUT control Controls the output level of the Mid band from 6 to 6 dB MID PHASE INVERT button This button reverses the polarity of the Mid output MID MUTE button Mutes the Mid band HIGH OUTPUT control Controls the output level of the High band from 6 to 6 dB HIGH PHASE INVERT button This button reverses the polarity of the High output HIGH MUTE button Mutes the High band CD HORN button This button provides a special form of frequency corr2. 13 14 15 gt N Fig 2 4 Active control elements on the rear panel of the SUPER X PRO Use the enclosed power cord to connect the unit to the mains 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 CX3400 Blown fuses may only be replaced by fuses of the same type and rating Some models allow for inserting the fuse holder in two different positions in order to switch over from 230 V to 115 V operation and vice versa Please note that for 115 V operation outside Europe you need to use a fuse of a higher rating see chapter 4 INSTALLATION and 10 HIGH OUTPUT connector Output for the High band signal and 12 LOW LF SUM OUTPUT connector Output for the Low band signal and 113 XOVER FREQ button This button serves to switch over the control range of the front panel LOW HIGH OVER FREQ control from 44 to 930 Hz or 440 Hz to 9 3 kHz 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 MODE button In stereo 2 way mode the first button 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 a
3. It meets all of the international safety certification requirements I Please make sure that all units have a proper ground connection For your own safety never remove 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 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 output signals 6 dB correction I Please ensure that only qualified persons install and operate the CX3400 During installation and operation the user must have sufficient electrical contact to earth Electrostatic charges might affect the operation of the SUPER X PRO Output Cable Input Ground Pin 1 Shield Signal Hum Signal Hum Pin 2 Signal Positive Hum Signal Pin 3 Signal Negative Hum Signal 2 x Signal Signal 6 dB RFI and Hum Fig 8 2 Compensation of interference with balanced connections 4 INSTALLATION 19 Unbalanced use of Balanced use of mono 1 4 jack plugs stereo 1 4 jack pl
4. 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 output signals 6 dB correction Further information can be found in chapter 4 INSTALLATION 2 2 Control elements Since the SUPER X PRO boasts a variety of features we highlighted the active control elements in the following illustrations On the unit itself these active elements are equipped with light emitting diodes helping you to keep track of your settings even under poor lighting conditions Additionally all buttons on the front panel are backlit when activated Above the control elements there are two labels in the form of strips which refers to mono 4 way upper or stereo 2 3 way lower configuration The LEDs below these strips show which controls are active in the respective operating mode I On the rear panel labels above below the connectors refer to the various crossover modes available Please make sure that the two MODE switches and corresponding connectors are configured properly otherwise you could damage your speakers CONMDCWSEDCUMTUNSD TC DIY er Ce war 10W WE HHT MD HGH JOWDBAY wo a HIGH OTP Jsnew zh w WeUT Lw cur OW O H TOW DEAY LOW OUTPUT ME OUTPUT PUT O Oww Son oO Os om oo 00 oO Om jesse oe i 77 cw rd oo ir wa k wove e ooo no
5. Mains Voltages Power Consumption Fuse Mains Connection PHYSICAL Dimensions Net Weight Shipping Weight 20 Hz to 20 kHz 0 0 5 dB lt 5 Hz to gt 90 kHz 0 3 dB Ref 4 dBu 20 Hz to 20 kHz unweighted Stereo Mode Mono Mode gt 93 dBu gt 93 dBu gt 94 dBu gt 95 dBu gt 94 dBu gt 90 dBu gt 88 dBu gt 106 dB unweighted Limiter Off Limiter On lt 0 04 lt 0 5 High to Low lt 93 dB High to Mid lt 94 dBu Mid to Low lt 95 dBu High to High Mid lt 95 dBu High Mid to Low Mid lt 95 dBu Low Mid to Low lt 92 dBu Linkwitz Riley 24 dB Octave state variable x1 x10 44 to 930 Hz 440 Hz to 9 3 kHz 44 to 930 Hz 440 Hz to 9 3 kHz 440 Hz to 9 3 kHz x1 x10 44 to 930 Hz 440 Hz to 9 3 kHz 440 Hz to 9 3 kHz 440 Hz to 9 3 kHz Activates 25 Hz Butterworth 12 dB Octave high pass filter Mutes the individual output Inverts the phase at the individual output Corrects CD horn frequency response above 3 5 kHz Activates the limiter function for all outputs Multiplies crossover frequency range by 10 Selects stereo mono and 2 3 4 way operation Selects normal stereo or mono summed low frequency operation ON Channel 1 6dB louder Channel 2 the same as before Controls the input gain 12 dB Controls the crossover frequency Controls the delay at the low output 0 to 2 msec Controls the output gain 6 dB Controls the threshold of the limiter 6 dB to OFF USA Canada 120 V 60 Hz U K Australia 240
6. reproduce the entire frequency spectrum Unfortunately such a sound source is impossible in reality so that we have to accept some compromises If the drivers in a multi way system i e the diaphragm set in motion by the voice coil but not e g the opening of a horn are not exactly aligned on a vertical axis the varying distances between sound source and listener result in phase errors and cancellations also called comb filter effect In particular in the high frequency range itis imperative due to the shorter wavelengths that the drivers be positioned one above the other not side by side The old fashioned horizontal rows of radiators follow this principle while the speaker power is summed up in the horizontal plane the signals cancel each other on a vertical axis Thus unwanted reflections from the ceiling can be reduced Consequently a speaker stack whose systems radiate towards the same area should have all speakers arranged in a vertical line And even ifthe front sides of all systems are perfectly aligned runtime differences still occur due to the different speaker designs horns bass reflex cabinet etc The BEHRINGER SUPER X PRO allows you to delay the Low bands by up to 2 milliseconds In this way you can virtually push back a specific speaker cabinet by as much as 68 6 cm which is quite useful for example when you place a constant directivity horn CD on top of a closed speaker cabinet I Runtime correction is
7. that ensure phase coincidence Perhaps none of these positions will correct the runtime differences completely for example if the offset between the drivers is greater than 68 6 cm Is that important It is because only a system whose runtime differences have been corrected will be capable of 1 reproducing pulse peaks correctly 2 maintaining phase coincidence 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 you a lot of time later on Now do the fine adjustment as follows Using an analyzer A Use pink noise as your sound source and connect the measuring microphone to the measuring input of the analyzer A Adjust the bands below above the crossover frequency so that each one alone produces a 0 dB reading at the crossover frequency mute the remaining bands If both bands together produce a 3 dB reading they can be considered in phase A Now raise the crossover frequency by a factor of 1 5 and perform the same steps as above Here too the analyzer should read 3 dB A Finally check your setting by raising the crossover frequency by a factor of 1 4 A Here too you can tempo
8. GHTS RESERVED 1999 BEHRINGER BEHRINGER INTERNATIONAL GmbH Hanns Martin Schleyer Str 36 38 47877 Willich M nchheide II Germany Tel 49 0 21 54 92 06 0 Fax 49 0 21 54 92 06 30 22 6 WARRANTY
9. HSI ION3 December 1999 s Manual J Version 1 0 User ii BEHRINGER www behringer de OOVEXI Oud X idns aM EG Declaration of Conformity BEHRINGER Spezielle Studiotechnik GmbH acc to the Directives 89 336 EWG and 73 23 EWG BEHRINGER INTERNATIONAL GmbH Hanns Martin Schleyer Stra e 4 D 47877 Willich Name and address of the manufacturer or the introducer of the product on the market who is established in the EC herewith take the sole responsibility to confirm that the product SUPER X PRO CX3400 Type designation and if applicable Article N which refers to this declaration is in accordance with the following standards or standardized documents EN 60065 EN 61000 3 2 EN 55020 EN 61000 3 3 EN 55013 The following operation conditions and installation arrangements have to be presumed acc to Operating Manual BEHRL INTERNATIONAL Gmb H Y M boe s x D 47 B Nier President Willich 01 12 1999 Name address date and legally binding signature of the person responsible SAFETY INSTRUCTIONS CAUTION Toreduce the risk of electrical shock do not remove the cover or back No user serviceable parts inside refer servicing to qualified personnel CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol wherever it appears This symbol wherever it appears alerts alerts
10. V 50 Hz Europe 230 V 50 Hz General Export Model 100 120 V 200 240 V 50 60 Hz lt 17W 100 120 V T 630 mA H 200 240 V T315 mAH Standard IEC receptacle 1 75 44 5 mm 19 482 6 mm 8 5 217 mm 3 kg 4 3 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 5 SPECIFICATIONS 21 6 WARRANTY 1 WARRANTY CARD To be protected by this warranty the buyer must complete and return the enclosed warranty card signed stamped by retail dealer within 14 days of the date of purchase to BEHRINGER INTERNATIONAL address see 3 Failure to return the card in due time date as per postmark will void any extended warranty claims 2 WARRANTY 1 BEHRINGER INTERNATIONAL warrants the mechanical and electronic components of this product to be free of defects in material and workmanship for a period of one 1 year from the original date of purchase in accordance with the warranty regulations described below If any defects occur within the specified warranty period that are not caused by normal wear or inappropriate use BEHRINGER INTERNATIONAL shall at its sole discretion either repair or replace the product 2 If the warranty claim proves to be justified the product will be returned freight prep
11. ackaging and its contents for any signs of physical damage which may have occurred during transit I 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 Shipping claims must be made by the consignee Your BEHRINGER SUPER X PRO requires 1 height unit of rack space 1 HU Please allow for an additional 10 cm of rack depth for the rear panel connectors Be sure that there is enough space around the unit for cooling and please do not place the CX3400 on high temperature devices such as radiators etc to avoid overheating I gt Before you connect your SUPER X PRO to the mains please make sure that your local voltage matches the voltage required by the unit The mains connection of the CX3400 is made by using the enclosed mains cable and a standard IEC receptacle It meets all of the international safety certification requirements I Please make sure that all units have a proper ground connection For your own safety never remove or disable the ground conductor of the unit or of the AC power cable As a standard the BEHRINGER SUPER X PRO 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 high operating levels Externally induced mains hum etc will be effectively
12. aid by BEHRINGER INTERNATIONAL within Germany Outside of Germany the product will be returned at the buyer s expense 3 Warranty claims other than those indicated above are expressly excluded 3 RETURN AUTHORIZATION NUMBER 1 To obtain warranty service the buyer must call BEHRINGER INTERNATIONAL during normal business hours BEFORE returning the product Tel 49 0 21 54 92 06 66 All inquiries must be accompanied by a description of the problem BEHRINGER INTERNATIONAL will then issue a return authorization number 2 The product must be returned in its original shipping carton together with the return authorization number to the following address BEHRINGER INTERNATIONAL GmbH Service Department Hanns Martin Schleyer Str 36 38 47877 Willich M nchheide Germany 3 Shipments without freight prepaid will not be accepted 4WARRANTY REGULATIONS 1 Warranty services will be furnished only if the product is accompanied by an original retail dealers invoice Any product deemed eligible for repair or replacement by BEHRINGER INTERNATIONAL under the terms of this warranty will be repaired or replaced within 30 days of receipt of the product at BEHRINGER INTERNATIONAL 2 If the product needs to be modified or adapted in order to comply with applicable technical or safety standards on a national or local level in any country which is not the country for which the product was originally developed and manufactured this mod
13. and the packaging was designed to protect the unit from rough handling Nevertheless we recommend that you carefully examine the packaging and its contents for any signs of physical damage which may have occurred in transit I 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 Shipping claims must be made by the consignee 4 1 Rack mounting The BEHRINGER SUPER X PRO fits into one standard 19 rack unit of space 1 HU 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 CX3400 on high temperature devices such as power amps etc to avoid overheating 18 4 INSTALLATION 4 2 Mains connection Before you connect your SUPER X PRO to the mains please make sure that your local voltage matches the voltage required by the unit The fuse holder on the female mains connector has 3 triangular markers with two of these triangles opposing each other Your CX3400 is set to the operating voltage printed next to these markers and can be set to another voltage by turning the fuse holder by 180 CAUTION this instruction does not apply to export models exclusively designed e g for 115 V operation The mains connection of the CX3400 is made by using the enclosed mains cable and a standard IEC receptacle
14. ass filter protecting the woofers against low frequency signals 3j LOW LOW MID XOVER FREQ control This control governs the crossover frequency between the Low and Low Mid bands When the XOVER FREQUENCY button on the rear of the unit is pressed the frequency range is multiplied by the factor 10 4 LOW MID HIGH MID XOVER FREQ control This control governs the crossover frequency between the Low Mid and High Mid bands 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 12 2 THEDESIGN CONCEPT N o 11 15 19 24 25 26 27 28 29 30 31 LOW OUTPUT control Controls the output level of the Low band from 6 to 6 dB LOW PHASE INVERT button This button reverses the polarity of the Low output LOW MUTE button Mutes the Low band LOW MID OUTPUT control Controls the output level of the Low Mid band from 6 to 6 dB LOW MID PHASE INVERT button This button reverses the polarity of the Low Mid output LOW MID MUTE button Mutes the Low Mid band CD HORN button This button provides a special form of frequency correction in the High band for constant directivity horns HIGH MID HIGH XOVER FREQ control This control governs the crossover frequency between the High Mid and High bands HIGH MID OUTPUT control Controls the output lev
15. ay downward I gt Once you have completed the runtime correction procedure please make a note of the relative positions of the speaker the adjusted crossover frequencies delay times etc as well as of all level settings limiters included The next time you set up your system you can start from these settings and with a bit of luck you will need to make just a few fine adjustments before you can turn to the EQs I Never drive different speakers from the same output The distances which the sound waves travel before they reach the listener will very likely be different and unavoidably lead to phase shifts Additionally the built in drivers may have different efficiencies impedance characteristics or even reversed polarities When the speaker offset is greater than 68 6 cm you can only move the speaker cabinets Runtime correction is not the same as the signal delay applied to offset groups of speakers Here the entire signal must be delayed by a much greater amount a suitable delay circuit is included for example in the BEHRINGER ULTRA CURVE DSP8024 3 6 The limiters of the SUPER X PRO Limiting the signal in the crossover network is the last resort to protect the system against overloading Otherwise improper handling by the user could lead to serious damage in several drivers Each frequency requires its own limiter compressor control times The higher the frequency the shorter the control times In the SUPER X PRO the control
16. ay times and crossover frequencies by means of a measuring microphone you should operate only one speaker stack each Usually the measuring microphone needs to be repositioned between two specific measurements 3 1 2 Generator Analyzer In combination with a measuring microphone and a generator producing pink noise that is fed into a channel of your P A console an analyzer gives you a graph that shows how the acoustic energy is distributed among the various frequency bands usually 1 3 of an octave The equalizer analyzer BEHRINGER ULTRA CURVE PRO DSP8024 is the ideal tool 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 technical aids such as analyzers measuring microphones etc you should check the results with your ears 3 2 Setting the input levels Both inputs provide a gain boost cut of up to 12 dB Normally the output level of the mixing console and the input sensitivity of the power amp are the same i e 0 dB in the console correspond to 0 dB in the amplifier In this case the power amp is fully driven and the SUPER X PRO should have no influence on the system level as all input ou
17. connector Output for the Low Mid band signal LOW OUTPUT connector Output for the Low band signal XOVER FREQ button This button serves to switch over the control range of the front panel LOW LOW MID XOVER FREQ control from 44 to 930 Hz or 440 Hz to 9 3 kHz 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 INPUT connector Input signal connector 2 THE DESIGN CONCEPT 13 3 APPLICATION 3 1 Tools The following tools are indispensable for a perfect system alignment You should by all means try to obtain the speaker specifications from the manufacturer in order to operate the systems in their proper frequency and level ranges Use the manufacturer s documentation to adjust the operating mode and crossover frequencies I BEHRINGER does not assume any responsibility for speaker damage caused by improper handling of the SUPER X PRO 3 1 1 Measuring microphone For making measurements you need a high grade microphone with a frequency response that should be as linear as possible over the entire frequency range e g BEHRINGER measuring microphone ECM8000 or at least between 90 Hz and 15 kHz Place the microphone about 5 m in front of the speaker system to be measured in a height where it is on axis with the drivers of the two frequency bands you wish to measure When setting the levels for the individual frequency bands del
18. de wall can be opened easily for instance to replace a defective speaker We use a horn length of 1 m as an example It will make no sense to delay the signal because the woofer signal arrives with a 3 ms delay at the mouth of the horn So you cannot achieve a correct runtime unless you would delay the runtime of the remaining systems in the stack The pulse response the main reason for runtime correction however is mainly determined by the mid and tweeter ranges What you can and should achieve though is phase coincidence at the crossover frequency Which is exactly what the SUPER X PRO gives you free adjustability of the crossover frequency Calculate the frequency whose wavelength corresponds to twice the horn length At this frequency the output signal will be reversed by 180 in phase when it comes out from the horn The frequency can be calculated as follows c see chapter 3 5 2 as p Use the known values speed of sound in m s horn length in m to calculate the frequency 343 m s 171 5 1 s 171 5 Hz 2 x 1m Now using 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 w
19. ection in the High band for constant directivity horns THRESHOLD control This control determines the limiter threshold 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 SU Town Tow WADE eur yoo e e e SERIAL NUMBER m e e e CJ a n um vmm mv AFSUM LOW MD INPUT LOWALFSUM LOWV HIGH INPUT Fig 2 7 Active control elements on the rear panel of the SUPER X PRO and 11 MID OUTPUT connector Output for the Mid band signal and 0 HIGH OUTPUT connector Output for the High band signal MODE button In stereo 3 way mode both buttons must be out Please observe the labels on the rear panel of the unit 2 THE DESIGN CONCEPT 11 12 13 14 2 2 3 First 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 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 particularly useful in systems using additional sub woofers LOW LF SUM OUTPUT connector Output for the Low band s
20. el of the High Mid band from 6 to 6 dB HIGH MID PHASE INVERT button This button reverses the polarity of the High Mid output HIGH MID MUTE button Mutes the High Mid band HIGH OUTPUT control Controls the output level of the High band from 6 to 6 dB HIGH PHASE INVERT button This button reverses the polarity of the High output HIGH MUTE button Mutes the High band THRESHOLD control This control determines the limiter threshold 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 IESUS NOT USED UND Taw mem nur se E E roven rca e e e Hen mo imWwAFSUM LOW MID Er Den Nor ocn iBMARSUM N INDUF 12 13 14 rt Fig 2 10 Active control elements on the rear panel of the SUPER X PRO 13 HIGH OUTPUT connector Output for the High band signal HIGH MID OUTPUT connector Output for the High Mid band signal MODE button In mono 4 way mode the right button must be pressed 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 LOW MID OUTPUT
21. f ncllon c e d ameter ene tre fot p eve lel ete ede eate eee thes 18 3 8 CD HORN f ncti n 2 dete e aede rede eter ete ed 18 4 INSTALLATION m 18 4 1 Rackmounting ze 2 ete ee dee habe messe eet Re d eene edere nue 18 42 Mans confiection cre iiec an LAPIS LER AL ees AUR PEOR T a ate KE Eee 19 4 3 Audio connections nn erbe Ea Eee pur EI Rx ERU FE Eae e Pe ERU REL Fe SPUR HE re er 19 5 SPECIFICATIONS p NAAE 20 6 WARRANTY ni ea reset aono noe von ve Sue ey ann ann ahnen dear Re oues oe ee Don Ee Denen ee 22 1 INTRODUCTION Thank you very much for expressing your confidence in BEHRINGER products by purchasing the SUPER X PRO CX3400 I This manual first describes the terminology used so that you can fully understand the CX3400 and its functions Please read the manual carefully and keep it for future reference 1 1 Multi way speaker systems Multi way speaker systems can be found almost everywhere today not only in stereo systems cinemas discotheques and concert halls As customers become more and more demanding even such simple products as TV sets have them installed Why With the same sound pressure level low frequency sound waves have a much greater amplitude than high frequency signals When a single loudspeaker is to produce both bass and treble frequencies so called intermodulation distortion will occur Don t worry about unfamilia
22. he Operating Instructions All other servicing should be referred to qualified service personnel SUPER X PRO HIGH PRECISION STEREO 2 WAY 3 WAY MONO 4 WAY CROSSOVER WITH LIMITERS MODEL CX 3400 ER HORT HH aor nT Jer Ew RET wow EUT EN WU WR INGE VW GURUT WEWUPUT SH OUTPUT UR VOWUUUT Oo Cw Ow Ou STEED MUITEAND Po 2 1 2 X mm mm Pr D st as dH 1 as oz ya 2 re FIRE ET Y2 an 5 a seo cal E u 4 ol Se LAC e Cam 090 bend AN MUE aE ANE oy a won Sohne mm A Professional high precision stereo 2 way 3 way mono 4 way crossover 4 World class performance 24 dB per octave Linkwitz Riley filters A Absolutely flat summed amplitude response zero phase difference A Individual output level controls for all bands A Individual limiter on each output for optimal loudspeaker protection A Individual output mutes for easy band adjustment A Individual phase reverse switches for instant phase correction A Switchable 25 Hz subsonic filter on each input for low frequency driver protection A Low Sum function provides low level mono output for subwoofer operation A Adjustable time delay for phase alignment between drivers A CD horn equalization for constant directivity horn compensation A Servo balanced gold plated XLR connectors for all inputs and outputs A Ultra high precisi
23. ification adaptation shall not be considered a defect in materials or workmanship The warranty does not cover any such modification adaptation irrespective of whether it was carried out properly or not Under the terms of this warranty BEHRINGER INTERNATIONAL shall not be held responsible for any cost resulting from such a modification adaptation 3 Free inspections maintenance repair work and replacement of parts are expressly excluded from this warranty in particular if caused by inappropriate use Likewise the warranty does not cover defects of expendable parts caused by normal wear of the product Expendable parts are typically faders potentiometers switches and similar components 4 Damages defects caused by the following conditions are not covered by this warranty A misuse neglect or failure to operate the unit in compliance with the instructions given in the user or service manuals A connection or operation of the unit in any way that does not comply with the technical or safety regulations applicable in the country where the product is used A damages defects that are caused by force majeure or by any other condition beyond the control of BEHRINGER INTERNATIONAL 5 Any repair carried out by unauthorized personnel will void the warranty 6 Products which do not meet the terms of this warranty will be repaired exclusively at the buyer s expense BEHRINGER INTERNATIONAL will inform the buyer of any such circum
24. ignal XOVER FREQ button This button serves to switch over the control range of the front panel LOW MID XOVER FREQ control from 45 to 960 Hz or 450 Hz to 9 6 kHz 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 INPUT connector Input signal connector Mono 4 way operation activate mono 4 way mode by means of the two MODE buttons on the rear panel The MONO LED on the front panel above the first LOW CUT button lights up MONO AM jg NOT iD m STEREO Am pum STEREO way HG 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 1 10 25 28 F 5 O 2 ES Bn OQO 1 30 2 Fig 2 9 Active control elements on the front panel of the SUPER X PRO 1j INPUT control This control adjusts the input gain from 12 to 12 dB 2 LOWCUT button This button activates the 25 Hz high p
25. means of the crossover network before using an equalizer EQ Subsequently the crossover frequencies must be corrected with an EQ as far as this is possible 3 4 Setting the crossover frequencies The use of extremely high grade potentiometers made it unnecessary to install fixed frequency plug in modules Thus you have a wide range of setting options available that even more expensive crossover networks hardly give you The CX3400 works in two specific frequency ranges 45 though 960 Hz and 450 Hz through 9 6 kHz The Linkwitz Riley filters employed in the SUPER X PRO feature a slope of 24 dB octave High grade components such as 1 tolerance metal film resistors ensure a perfect phase and amplitude response at all crossover frequencies Please consult the manufacturer s specifications of the various speaker components to set the crossover frequencies When polar plots of specific speakers or horns are available use them too Don t set the crossover frequencies around peaks or drop outs in the frequency response but try to find a range that is largely linear When folded woofer horns are used you also need to take the horn length into account see chapter 3 5 Runtime Correction IS Never operate speaker horn drivers below the frequency range specified by the manufacturer 3 5 Runtime Correction 3 5 4 Background The ideal transducer would be a point source of sound i e a speaker of infinitely small dimension which could still
26. mpetent 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 hampered by budget constraints We are often asked how we can make it to produce such high grade devices at such unbelievably low prices The answer is quite simple it s you our customers Many satisfied customers means large sales volumes enabling us to get better conditions of purchase for components etc Isn t it only fair to pass this benefit back to you Because we know that your success is our success too would like to thank all people whose help on Project SUPER X PRO has made it all possible Everybody has made very personal contributions starting from the designers of the unit via the many staff members in our company to you the user of BEHRINGER products My friends it s been worth the trouble Thank you very much IL p Uli Behringer TABLE OF CONTENTS 1 INTRODUCTION Ga ea 7 1 1 Multi way speaker systems noron ata i E AA ee eem enne ren VAE IE N E 7 1 2 SUPER X PRO the high end frequency crossover ssssssssssssss eene 7 2 THE DESIGN CONCEPT 2 ee nat ie seine Eel KNA SERTA epe 7 271 Before you begin e D t Sete b Mee
27. not the same as phase correction Speaker systems that have the same run times are also in phase unless the polarity of one speaker is reversed However the opposite is not true 3 APPLICATION 15 3 5 2 Basics of electronic runtime correction It is important to know how the dimensions of time and space are connected with each other e g by using a tape measure and a pocket calculator Example a delay of 2 ms corresponds to a distance of 68 6 cm when you measure an offset of 30 cm you can calculate the necessary delay as follows 2 ms x 30 68 6 0 87 ms If it is impossible to measure the offset with an accuracy of at least 1 cm you can perform the runtime correction with the help of a measuring microphone and tunable sine generator using the SUPER X PRO s feature of variably adjustable crossover frequencies More on this below The speed of sound is 343 m s or 34 3 cm ms approximately hence 2 ms of delay correspond to a virtual speaker offset of 68 6 cm Frequency is measured in oscillations per second 1 s the unit of measurement is Hertz Hz For example when you adjust a crossover frequency of 3 kHz between the horn and midrange systems the wavelength A is calculated as follows X c f c speed of sound f frequency So the wavelength at 3 kHz is 34 3 cm ms _ 34300 cm s 30001 s 3000115 1143 cm With a virtual distance of 68 6 cm the control range of the potentiometer will provide at least six positions
28. o a a E JLeo sm Fig 2 1 The front panel of the SUPER X PRO 2 2 1 Stereo 2 way operation First activate stereo 2 way mode by means of the two MODE buttons on the rear panel The STEREO LED on the front panel above the second LOW CUT button lights up 8 2 THE DESIGN CONCEPT MONO Sowa NOT p m STEREO Am lym STEREO 5 yy BHL Fig 2 2 Proper selection of the two MODE buttons for stereo 2 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 second strip label In stereo mode both channels perform the same functions 7 13 a OE OE 6 O oe WB m a Se SS QO 1 3 5 16 12 2 8 14 Fig 2 3 Active control elements on the front panel of the SUPER X PRO 1 INPUT control This control adjusts the input gain from 12 to 12 dB see control 16 2 LOW CUT button This button activates the 25 Hz high pass filter protecting the woofers against low frequency signals 3 LOW HIGH XOVER FREQ control This control governs the crosso
29. on Alps potentiometers for ultimate accuracy and repeatability A Ultra low noise audio operational 4580 amplifiers for outstanding sound performar A Illuminated switches for secure operation in dark stage environments A High quality components and exceptionally rugged construction for long life and re A Shielded toroidal mains transformer for minimal noise interference A Manufactured under the stringent ISO9000 certified management system FOREWORD Dear Customer Welcome to the team of SUPER X PRO users and thank you very much for expressing your confidence in BEHRINGER products by purchasing this crossover 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 to reach a very ambitious goal making an outstanding device that will become a standard tool used by P A companies and studios The task to design the SUPER X PRO certainly meant a great deal of responsibility which we assumed by focusing on you the discerning user and musician It also meant a lot of work and night shifts to accomplish this goal But it was fun too Developing a product usually brings a lot of people together and what a great feeling it is when everybody who participated in such a project can be proud of what we ve achieved Itis our philosophy to share our joy with you because you are the most important member of the BEHRINGER family With your highly co
30. r boxes 1 2 SUPER X PRO the high end frequency crossover The BEHRINGER SUPER X PRO CX3400 is a high quality active crossover network that can be used for 2 3 or even 4 way sound reinforcement systems Whether you need to set up a system for small clubs or large halls improve an on stage monitoring system or enhance your studio monitors with an additional sub woofer your SUPER X PRO is the ideal choice for all of these applications 2 THE DESIGN CONCEPT The philosophy behind BEHRINGER products guarantees a no compromise circuit design and employs the best choice of components The operational amplifiers NJM4580 which are used in the SUPER X PRO are exceptional They boast extreme linearity and very low distortion characteristics To complement this design the choice of components includes low tolerance resistors and capacitors high quality potentiometers and several other stringently selected elements The CX3400 uses SMD technology Surface Mounted Device These subminiature components adapted from aerospace technology allow for an extreme packing density to further improve the overall reliability Additionally the unit is manufactured in compliance with the ISO9000 certified management system 1 INTRODUCTION 7 2 1 Before you begin Your BEHRINGER SUPER X PRO CX3400 was carefully packed in the factory and the packaging is designed to protect the unit from rough handling Nevertheless we recommend that you carefully examine the p
31. r terminology Everybody knows the effect that the sound of a fire engine s siren seems to become lower in frequency once it has passed you So the perceived frequency is affected by the motion of the sound source or the listener This phenomenon is called Doppler effect thanks to Mr Doppler who discovered it and can also be found in loudspeakers as the speaker diaphragm is displaced by low frequencies the treble frequencies seem to be raised in loudness or lowered when the diaphragm reverses its direction Quite similar in sound to a vibrato it is precisely this effect that we call intermodulation distortion As a consequence we cannot expect a single loudspeaker to reproduce signals with the same quality over the entire audio spectrum Therefore 2 3 or 4 way systems have become the standard today Speakers that need to reproduce only 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 several frequency bands You can use passive crossovers wired between amplifier and speaker or active systems placed before the amplifier in the signal chain Passive crossovers are usually employed in hi fi speake
32. rarily reverse the phase of one of the bands and check the sound for cancellations If no runtime correction is achieved A Check whether the distance between the two drivers is or could be greater than 68 6 cm If so try to correct it by moving the speaker cabinets A If this still doesn t solve the problem one of the bands could be reversed in polarity Experiment with the front panel PHASE INVERT button Sub woofer woofer midrange It is often claimed that phase or runtime correction below 150 Hz is unnecessary because the sound waves feature a spherical dispersion pattern at such low frequencies We disagree with this view 16 3 APPLICATION Modern systems often use bass reflex cabinets for their woofer or sub woofer systems Consequently when stacking the cabinets the drivers are usually aligned along the vertical axis of the speaker front or can at least be aligned using the available control range of the SUPER X PRO Here runtime correction follows the same principle as in midrange high midrange tweeter systems Problems will be encountered only with unconventional setups e g when the woofers are placed underneath the stage while the midrange tweeter systems are flown above it or when long woofer horns are used The latter are the subject of the following discussion First measure the horn length In the case of folded woofer horns this is anything but easy Use a design drawing or open the cabinet usually a flap or cabinet si
33. s 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 grounding or polarization means of an appliance is not defeated Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords and plugs convenience receptacles and the point where they exit from the appliance Cleaning The appliance should be cleaned only as recommended by the manufacturer Non use Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings Damage Requiring Service The appliance should be serviced by qualified service personnel when The power supply cord or the plug has been damaged or Objects have fallen or liquid has been spilled into the appliance or The appliance has been exposed to rain or The appliance does not appear to operate normally or exhibits a marked change in performance or The appliance has been dropped or the enclosure damaged Servicing The user should not attempt to service the appliance beyond that is described in t
34. s it produces heavy interference noise that could damage your speakers and or other equipment 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 particularly useful in systems using additional sub woofers INPUT connector Input signal connector SERIAL NUMBER Please take the time to have the warranty card filled out completely by your specialized dealer and return it within 14 days after the date of purchase so as to be entitled to benefit from our extended warranty 2 2 2 Stereo 3 way operation First activate stereo 3 way mode by means of the two MODE buttons on the rear panel The STEREO LED on the front panel above the second LOW CUT button lights up Fig 2 5 Proper selection of the two MODE switches for stereo 3 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 second strip label In stereo mode both channels perform the same functions 10 2 THEDESIGN CONCEPT NI 10 11 12 13 14 15 30 31
35. stance If the buyer fails to submit a written repair order within 4 weeks after notification BEHRINGER INTERNATIONAL will return the unit C O D with a separate invoice for freight and packing Such cost will also be invoiced separately when the buyer has sent in a written repair order 5 WARRANTY TRANSFERABILITY This warranty is extended exclusively to the original buyer customer of retail dealer and is not transferable to anyone who may subsequently purchase this product No other person retail dealer etc shall be entitled to give any warranty promise on behalf of BEHRINGER INTERNATIONAL 6 CLAIM FOR DAMAGES Failure of BEHRINGER INTERNATIONAL to provide proper warranty 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 purchase contract 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 GmbH BEHRINGER and AUTOCOM are registered trademarks ALL RI
36. t eli e edidere b Eod etta ieget 8 2 2 Controlelemients eoe d eee ie iati tite tt eiae 8 2 2 1 Stereo 2 way operatiori oae dett ueniet pe etre suae etin add ee babel d dut dts 8 2 2 2 Stereo 3 way operation eene eene nre nnnm nnn 10 2 2 3 Mono 4 Way Ope6ratlOn e td eene Baker nenn 12 Se FAP PEIC ie renden einher 14 Ms 14 3 1 1 Measuring microphone sssssssssssse eee nennen rne nne rrr nnne nennen 14 3 1 2 Genierator Analyzer rte te me edet redet e autas 14 SiS YOU CAMS nn ask e D c Ea o eb P ER eer ea be e a e Ex E Ma 14 3 2 Setting theinput levels ie ete med ere etatis ius dtes b gua te urbe teet 14 3 3 Setting the outputlevels eoe RO RE etie e te tet ee 14 3 3 1 Finding drop outs in the frequency response ssssssssssssee eee 15 3 4 Setting the crossover frequencies sssssssssssssssssesee eene ener nnn 15 3 5 RUNTIME Correction i eec tero eg cete tete tee an ile bran reip etd rts 15 9 571 Background i bd e e ER Mi bec Hier re Manne e o e RU re a EM A 15 3 5 2 Basics of electronic runtime correction ssssssssssssssssees eene 16 3 5 3 Runtime correction in a P A system using the SUPER X PRO nee 16 3 6 The limiters of the SUPER X PRO 244smnssensnnnnnnnnnnnnnnnnnnnnnennnnonnnnnnonnnnnnnnnnnnnnr nnne 17 9 61 Limiter Setup aie ttr tt en rael a vi bert re diete deg or bl dee iu a 18 345 LOW SUM
37. than that of two cabinets placed at a certain distance Four cabinet give you as much as 6 dB because low frequency sound waves feature a spherical dispersion pattern When the cabinets are positioned separately the sound waves they radiate interfere with each other while cabinets placed next to each other create one common wave front compare two stones that are thrown into the water either separately or together 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 horn its efficiency increases Over the past few years so called constant directivity horns have gained widespread popularity as they offer the advantage of producing a very regular dispersion pattern over their frequency range however the higher the frequency the lower their efficiency To make up for this drawback the SUPER X PRO includes a switchable pre EQ for CD horns that ensures a flat frequency response even before equalization is applied This pre EQ raises the signal gain by 3 dB at 3 5 kHz which then increases by 6 dB oct up to 22 5 kHz 4 INSTALLATION Your SUPER X PRO CX3400 was carefully packed in the factory
38. times for the single bands have been determined after long listening tests in order to achieve inaudible gain adaptation instead of hard limiting 3 APPLICATION 17 The limiter threshold can be set from 6 dB to OFF and acts on all six limiters at the same time Still each limiter band works independently with the LIM LEDs lighting up as soon as the associated limiter is activated I gt Please note that the limiters in the SUPER X PRO are no hard ratio limiters i e signal peaks can surpass the adjusted threshold by as much as 6 dB Please make sure that your system provides enough headroom 3 6 1 Limiter setup On condition that you are using power amps and speakers that are compatible in terms of power rating you should drive your amps under full load i e 0 dB Use pink noise from your analyzer as a sound source turn the limiter THRESHOLD control to maximum and press the LIMITER button Then gradually cut back the threshold until just a few LIM LEDs start flashing Now the entire system gain is limited to 0 dB 3 7 LOW SUM function To produce a very loud and deep bass response the lowest band should be summed in a mono signal while the remaining bands remain in stereo the human ear cannot locate the source of low frequencies By combining all woofer cabinets in one single cluster the closer the better you can optimize their efficiency Two woofer cabinets positioned next to each other produce an SPL that is 3 dB higher
39. tput controls are set to 0 dB However in a home recording or discotheque environment using operating levels of 10 dBV the power amp would still need 4 dBu which requires some additional gain of 12 dB If so the SUPER X PRO s INPUT control must be set to maximum 3 3 Setting the output levels The output levels of the single bands can be raised lowered by as much as 6 dB To achieve a linear frequency response in the system all output levels should be adjusted with the help of an analyzer Then mute all outputs except for one to check the crossover frequencies and levels play back pink noise over the system at an appropriate volume level Now when you switch on the adjacent band the level measured around the crossover frequency should go up by 3 dB Repeat this process for all crossover frequencies 14 3 APPLICATION 3 3 1 Finding drop outs in the frequency response Check the entire frequency response of the system Rooms have quite an impact on the frequency response of speaker systems due to resonance and various reflections So you cannot expect to achieve a linear frequency response right from the start Use an equalizer such as our ULTRA CURVE PRO DSP8024 or ULTRA GRAPH GEQ3102 Look for drop outs around the crossover frequencies there should be none if the output levels have been set properly as described in paragraph 3 3 However if the frequency response shows some irregularities it can prove useful to correct it by
40. ugs Tip Tip Signal hot ve Ring cold ve Sleeve Ground Shield Sleeve Ground Shield Tip Tip Ring Sleeve Sleeve Strain relief clamp Strain relief clamp For connection of balanced and unbalanced plugs ring and sleeve have to be bridged at the stereo plug Balanced use with XLR connectors 1 Ground Shield 2 hot ve 3 cold ve Output For unbalanced use pin 1 and pin 3 have to be bridged Fig 8 3 Different plug types 5 SPECIFICATIONS INPUT Connectors XLR Type Electronically servo balanced RF filtered Impedance Balanced gt 50k Ohms unbalanced gt 25k Ohms Max Input level 22 dBu typical balanced or unbalanced CMRR gt 40 dB typically gt 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 20 4 INSTALLATION PERFORMANCE Bandwidth Frequency Response Signal to Noise Low Output Low Mid Output Mid Output High Mid Output High Output Dynamic Range THD amp Noise Interchannel Crosstalk CROSSOVER Filter Type Stereo Mode Frequencies Low High Low Mid Mid High Mono Mode Frequencies Low Low Mid Low Mid High Mid High Mid High FUNCTION SWITCHES Front Panel Low Cut Mute Phase Invert CD Horn Limiter Rear Panel Xover Frequency Mode LF Sum CONTROLS Input Xover Frequency Delay Gain Threshold POWER SUPPLY
41. ver frequency between the Low and High bands When the XOVER FREQUENCY button on the rear ofthe unit is pressed the frequency 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 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 special form of frequency correction in the High band for constant directivity horns 30 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 2 THEDESIGN CONCEPT 9 IESUM Nor USED Towa Tow vr 2 E e e e m m MID LOW LF SUM wes not usen VENAE SUM Low MIS i HSH LOW iGH INPUT 14 15 t bd hhh ddd 10 12
42. you to the presence of you to important operating and uninsulated dangerous voltage inside maintenance instructions in the the enclosure voltage that may be accompanying literature Read the sufficient to constitute a risk of shock manual WARNING To reduce the risk of fire or electrical shock do not expose this appliance to rain or moisture DETAILED SAFETY INSTRUCTIONS All the safety and operation instructions should be read before the appliance is operated Retain Instructions The safety and operating instructions should be retained for future reference Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to Follow instructions All operation and user instructions should be followed Water and Moisture The appliance should not be used near water e g near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool etc Ventilation The appliance should be situated so that its location or position does not interfere with its proper ventilation For example the appliance should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliance including amplifier
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