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Peavey CEQ 280 User's Manual

1. 5 A 5 3 Connecting to a Mixer Effects Loop his diagram shows how to connect the CEQ 280 to the effects loop of a recording console ai out ects Top Ta fects toop 0 iver or any tne evel input 6 0 BASIC OPERATION When the CEQ 280 is first tumed on the following display is briefly shown Peavey Electronics Corroration CEQ 280 Battery OK After a brief pause the screen will change to the EQ display dB 16K on e ee Note The EO display isthe main display for the CEQ 280 Pressing the EO button or repeatedly pressing the EXIT soft button will always retum you to this display This section covers the following areas Parameter selection and adjustment arrow buttons and soft buttons View angle adjustment Manual equalization Storing EQ curves Recalling EO curves e Automatic equalization Feedback finder Note This section should provide all the information necessary to use the CEQ 280 in most setups However greater depth into this units functions can be found in the Advanced Operations section 6 1 Selecting and Editing Parameters This manual takes the approach that the best way to leam how to operate the CEQ 280 is through example The following section will show you how to adjust the view angle and
2. 2 Use the upand down arrow butions to select the program number to recall 3 Press the Recall soft burton The following display will appear briefly RECALL COMPLETE The CEQ 280 will stay on the Recall display until the EXIT soft button or another system button is pressed Note It is also possible to add a s For detailed information see cond curve to the one selected to get the combined response of the curves ction 7 4 Itis also possible to rec 128 program presets are init provide a MIDI Bypass at curve Simply select an unused preset and press the RECALL soft button The ed as flat curves at the factory Recalling a flat curve via MIDI is an easy way to 6 12 Recall the Last EQ Whenever a curve that has not been saved is about to be destroyed that curve is automatically stored as curve 129 last EO The recall function can then be used to restore curve 129 It is best to recall and save this curve as soon as possible because curve 129 will be overwritten the next time this situation arises 6 13 Compare EQ Curves It is possible to compare two EQ curves to see which might best serve your needs To do this wNe bi Press the EQ button if not already on the main EQ display screen to retum to the main EQ display screen Press the OPT soft button On the screen that comes up press the NEXT soft button This takes you to the compare screen NEXT COMPARE CUR
3. If you are in a small room or if you feel you need more highs try RM3 Why should I create a custom target curve From the previous discussion you may want to create a new curve with a different amount of high frequency roll off But one of the more important reasons for creating a custom curve may be to customize the low frequency response If you auto equalize your system and find there isa lot of boost at low frequencies a custom curve may be in order Putting a lot of extra power into your speakers at low frequencies may not only be a waste of power and amplifier headroom but may also lead to speaker damage The best way to handle this is by customizing the target curve to include a low frequency roll off appropriate for the speakers you are using To create a room curve Press the RTA button twice Press the AUTO soft button Selectthe microphone curve you wantto use in creating your new room curveand pressthe NEXT s Use the eft and right arrow buttons to position the cursor alongside CREATE s hr NEXT AUTO EQ TO RMI ENZ RM3 FLAT EXIT CURWE1 CURVEZ CURUES CREATE 5 Press the NEXT soft button NEXT Create new room curve from EXIT FLAT The CEQ 280 defaults to FLAT because it is a flat curve You can change this to use any of the stored curves as a starting point Use the up and down arrow buttons to select the curve with which you want to start 6 Press the NEXT soft
4. Press the NEXT soft button and begin to enter your microphone curve dB 32Hz NERT EXIT 6 When you have completed entering the curve press the NEXT soft button to store the curve STORE Store mew mic curve to EXIT CURUE1 7 Select from CURVE through CURVES as the storage location for your new microphone curve and press the STORE soft button The following screen will be displayed briefly STORE COMPLETE 7 3 Room Target Curve Selection Creation What is a target response curve The target response curve is the system frequency response you wish to achieve after equalization This is the curve you should see on the RTA display Why not just equalize my system fi High frequencies are absorbed by air ata greater rate the than low frequencies There are few people who are used to listening to a snare drum or vocalist from one inch away Most of the listening that we do is from a distance and that is what sounds natural Ifa speaker system has a flat response the response we would measure in the dub or auditorium would exhibit a high frequency roll off Equalizing the system flat in the middle of the room would make the system sound overly bright and harsh What curve should Tus Theamountofhigh frequency roll off you want in your system depends on how far you are fromthe speaker system and how the system is going to be used If you are in a medium to large room RM1 or RM2 will work well
5. a damp rag or an ammonia based household cleaner if necessary Disconnect unit from power supply before cleaning 14 Care should be taken so that objects do not fell and liquids are not spilled into the unit through the ventilation holes or any other openings 15 This unit should be checked by a qualified service technician if a The power supply cord or plug has been damaged b Anything has fallen or been spilled into the unit c The unit does not operate correctly d The unit has been dropped or the enclosure damaged 16 The user should not attempt 1o service this equipment All service work should be done by a qualified service technician 17 This product should be used only with a cart orstand that is recommended by Peavey Electronics 18 Exposure to extremely high noise levels may cause a permanent hearing loss Individuals vary considerably in susceptibility to noise induced hearing loss but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time The U S Government s Occupational Safety and Health Administration OSHA has specified the following permissible noise level exposures Duration Per Day In Hours Sound Level dBA Slow Response 8 90 6 92 4 3 97 2 100 112 102 1 105 12 Wi 1 4 or less us According to OSHA any exposure in excess of the above permissible limits could result in some hearing loss Ear plugs or protectors in the ear canals or over the ears must be wor
6. iejtand right arrow buttons move the cursor until it is positioned under the frequency or the level you want to change The frequency of the selected band and its boost or cut seting is shown at the right side of the display 2 Using the up and down arrow buttons change the boost or cut of the selected band 3 Repeat steps 1 and 2 until all the changes are made and your system has the sound desired Then store the EQ curve you created Note Double bars in the display indicate that the frequency band selected is set to 0 dB 6 7 Level Adjustment The level control isavailabsle in each of the EQ displays allowing the signal gain through the CEQ 280 to be adjusted 12 dB This control is used to retum the CEQ 280 to unity gain after the equalizer has been adjusted To adjust the level move the cursor all the way to the left of the EQ display OPT _ D b per LEVEL The goal is to adjust the level of the signal passing through the CEQ 280 so it is the same when the CEQ 280 EQ is bypassed or in use 6 8 Bypass the EQ The bypass button activates a relay that directly connects the input and output jacks to provide a complete bypass of the CEQ 280 equalizer When bypassed EQUALIZER BYPASSED appears in the display The CEQ 280 can still be adjusted by pressing any of the function butions After about 20 seconds the EQUALIZER BYPASSED display will retum if a button is not pressed 6 9 Set EQ Flat Sometime
7. in the process you will leam how to select parameters and how to change their settings This basic process is the same for most parameters you need to select and or change 1 The kefi and right arrow buttons will always move you between parameters while 2 the up and down arrow buttons will always change the value of the selected parameter 3 Throughoutthis manual you will see references ta soft buttons These are the two buttons located immediately to the left of the display The function of these two buttons will be defined within the display Note The currently selected parameter is indicated by either a or 7 symbol The will appear alongside a selected parameter while the will appear under the parameter or its value 6 2 Memory Re initialization Re initialization of memory retums the CEQ 280 to its original factory settings This operation also clears the EQ curve storage memory causing all stored curves to be lost IF you have curves you wish to save they can be dumped via MIDI to a storage device such as the Peavey MIDI Streamer or to another CEQ 280 To reinitialize memory Disconnect power from the CEQ 280 Press and hold the EQ and GLOBAL buttons Re apply power to the CEQ 280 The following display will appear NI Memory has been Initialized to Factory Settings 6 3 Adjusting the View Angle The CEQ 280 is equipped witha 40 character by 2 line LCD with an adjustable view angle for easy vi
8. installed in the United States and Canada THIS LIMITED WARRANTY IS IN LIEU OF ANY AND ALL WARRANTIES EXPRESSED OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE UNDER NO CIRCUMSTANCES WILL PEAVEY BE LIABLE FOR ANY LOST PROFITS LOST SAVINGS INCIDENTAL DAMAGES OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE THiS LIMITED WARRANTY IS THE ONLY EXPRESSED WARRANTY ON THIS PRODUCT AND NO OTHER STATEMENT REPRESENTATION WARRANTY OR AGREEMENT BY ANY PERSON SHALL BE VALID OR BINDING UPON PEAVEY Peavey s liability to the original purchaser for damages for any cause whatsoever and regardless of the form of action is limited to the actual damages up to the greater of Five Hundred Dollars 500 or an amount equal to the purchase price of the product that caused the damage or thatis the subject of or is directly related to the cause of action This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property allegedly caused by Peavey s negligence For information on service under this warranty call a Peavey customer service representative at 601 483 5376 IMPORTANT SAFETY INSTRUCTIONS WARNING When using electric products basic c tions should always be Followed including the followi 1 Read all safety and operating instructions be
9. may adversely affect sound quality 6 Once you are sa ue Hr Di ied name and save the curve 7 0 ADVANCED OPERATIONS This section deals with the moreadvanced uses for the CEQ 280 It is not intended for everyone and is not necessary forsimple application butas you become familiar with the CEQ 280 reading this section may help you get the most from this product 7 1 Microphone Selection Creation The choice of microphone to use with the CEQ 280 RTA is crucial to proper performance The recommenced microphone is the Peavey AYR L The mic is an omni directional condenser mic with a wide smooth response Te compensation curve for this mic is stored in the CEQ 280 and is selected by placing the cursor next to AVR 1 the RTA mic selection display It is possible to use other microphones with the CEQ 280 by selecting CREATE in the mic selection display then entering its frequency response What makes a good RTA microphone The characteristics of good RTA microphones are that they are omni directional with a wide smooth response Most directional microphones have several characteristics that make them poor choices Fist directional microphones seldom have directional characteristics that are the same at all frequencies Most become almast omni directional at low frequencies which cause the frequency response to change asa function of how much sound entersthe rear of the mic Next directional mics have a character
10. of times you will be a doing it like a pro Di Tum on the system mics to their normal operating level Be sure to avoid feedback Connect the pink noise source labeled Noise Source on the rear of the CEQ 280 to a mixer input Set the EQ flat on that input or if possible tum off the EQ on that channel Connect a Peavey AVR 1 microphone on a long cord to the RTA microphone input Place the microphone to 1 half the way back from the speakers near the center of the room at ear level Speakers Stage Stage The gray area in each example represents the optimum microphone placement area This atea should yield the best auto equalization results when used in the following manner In each room exemple take 3 6 samples in various places within the gray area For bast results make sure the microphone is placed at ear level Notice that the gray aree remains in or near the center of the room regardless of the room shape 5 Press the RTA button on the CEQ 280 LEVEL DEEL m 6 Tum up the pink noise to a moderate listening level Press the DSPL soft button so the full height RTA appears 1248 nt 29 per 8 Move the cursor all the way to the left and adjust the mic volume so the RTA shows activity in the middle of the display The frequency bands from about 125 Hz to 1 25 kHz should be about half way up or around 0 dB This setting is not critical so
11. receiving unit All preset numbers will be identical gt Sending MIDI System Exclusive Message The sending MIDI message will appear on the sending unit while the receiving MIDI message will appear on the receiving unit This indicates that a successful dump is in progress Receiving MIDI System Exclusive Message To dump a single preset from one CEQ 280 to another i 2 Press the Global button Use the left and right arrow button to position the cursor alongside MIDI SYS EX NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SU MIDI SND RCY MIDI SYS EX 3 Press the NEXT soft button EXECUTE SYSTEM EXCLUSIVE EXIT DUMP PRESET G12 LOAD PRESET 881 wm Ce 4 Use the leffor right arrowbutton to select DUMP PRESET and change this to the preset 012in ourexample you want to dump to the receiving CEQ 280 Press the EXECUTE soft button The preset number selected will replace the same preset number on the receiving CEQ 280 v Sending MIDI Systen Exclusive Message This indicates that a successful dump is in progress To dump the current preset from one CEQ 280 to another 1 Press the Global button 2 Use the Jefi and right arrow button to position the cursor alongside MIDI SYS EX NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SND RCV MIDI SYS EX XT soft button EXECUTE SYSTEM EXCLUSIVE EXIT DUMP PRESET CUR LOAD PRESET 60i 4 Use th
12. standard 5 pin DIN jack used for receiving MIDI data from the sending unit MIDI Out This is a standard 5 pin DIN jack used for sending MIDI data from the CEQ 280 to receiving unit s This jack can also echo incoming MIDI data received at the MIDI In jack This means the receiving unit s will receive an exact copy of the data the CEQ 280 received This is an option that may be tumed off and on in the MIDI section of the Global menus Power Jack Use only the 16 16 5 Volt LA AC power adapter provided Peavey part 400710160 Caution Use only the Peavey 16 16 5 volt power supply provided with this product Ifthe original power supply must be replaced consult your Peavey dealer or the Factory for the correct replacement Failure to use the correct power supply could result in fire shock hazard extensive circuit damage decreased performance or non operation 5 0 BASIC CONNECTIONS This sections shows some possible configurations for the CEQ 280 5 1 Connecting the CEQ 280 to Your Existing Sound System This diagram shows how to connect the CEQ 280 and your sound system together Mior or any ino ep 5 2 Connecting for Pink Noise The following diagram shows how to connect the CEQ 280 into your sound system to use the pink noise source for equalization Maer for any bae leve pat i
13. the EQ curve you created from the discrete samples by all means keep itand move on It is also important to note that the continuous mode should not be used as the only method of auto equalization Having pressed the EXIT button at the conclusion of last discrete sample you should be ar the following display NEXT DISCRETE SAMPLES EXIT CONTINUOUS SAMPLES To start taking continuous samples 1 Position the cursor alongside Continuous Samples NEST DISCRETE SAMPLES EXIT CONTINUOQUS SAMPLES START CONTINUOUS SAMPLE EXIT STOP 1298 EXIT Sampling will continue until the STOP soft button is pressed curate readings it is necessary to carry the microphone around the room to get sample from several locations Since it is necessary to handle the microphone care should be taken any noise you make can be picked up and averaged in sample being taken Once you have gathered enough of a sample approximately one to five minutes Press the STOP soft button to complete the sampling process Once the STOP button has been pressed the CEQ 280 will take the average EQ curve from the continuous sample and average it with the discrete EQ curve captured earlier It is important to note that the CEQ 280 places much more emphasis on the current EQ in this case the discrete sample taken carici than it does on the continuous EQ curve The continuous EQ curve is treated like a third or fourt
14. NTATION MIDI Implementation Chart Date 7 95 Model CEQ 280 Version 1 0 Function Transmitted Recognized Remarks Basic Channel 1 16 1 16 Default Channel 1 1 Default 1 3 memorized Mode Messages Omni on off Altered Note Number True Voice x x Velocity Note On x D Note Of x x After Key s X xX Touch Ch s x x Pitch Bender x X 0 120 0 120 Programmable 0 Volume 0 Volume EQ Vol Bends 1 28 1 Band 1 32Hz 1 Band 1 22Hz Programmable as a block Subsonic EQ Range Individually Programmable Control 28 Band 28 16kHz 28 Band 28 16kHz Change 64 Subsonic Filter on off 64 Subsonic Filter on off Controller value O to 63 off 64 to 127 on 65 EQ Range 6 1208 65 EQ Range 6 1208 Oto 63 60B 64 to 127 1208 Prog Change True 0 127 0 127 System Exclusive o o System Song Pos Song Sel Common Tune System Clock Real Time Commands Aux Local ON OFF Mes All Notes Off sages Active Sense Reset xxx xx KK gt gt x lt x KK Notes Mode 1 OMNI ON POLY Mode 2 OMNI ON MONO O Yes Mode 3 OMNI OFF POLY Mode 4 OMNI OFF MONO X No 10 0 SYSTEM EXCLUSIVE This section contains the format of the system exclusive commands used by the CEQ 260 The range of valid values is also listed for most of the data in the message descriptions The description of the bit functions of status bytes and other data range information is listed at the end o
15. R EXIT MIDI SW MIDI SND RCU MIDI SYS EX TT 2 Position the cursor alongside MIDI CNTRLR 3 Press the NEXT soft button EQ GAIN ON CONT CONTROLLER s ng EXIT EQ SLIDERS ON CC 881 TO 828 If you change the EQ gain controller number you will find that the slider blocks move accordingly EQ GAIN ON CONT CONTROLLER 002 EXIT EO SLIDERS ON CC 993 TO 838 Here we have changed the gain MIDI controller number Ascan be seen the MIDI slidernumbers from 001 to 003 and 028 to 030 The whole block has moved upward together changed y Note You may notice as you change the controller number the display will skip some blocks of numbers This happens because the CEQ 280 checks for conflict between the Gain and EQ slider block and the Subsonic and EQ Range MIDI controller switches and skips numbers that would cause more than one contol to be assigned to one number 7 51 Setting the MIDI Switches The CEQ 280 has two MIDI switches subsonic filter and EQ range that can be controlled remotely An incoming MIDI continuous controller message can change these settings The subsonic filter can be changed between On and Off while the EQ range can change between the 26 dB and 12 4B settings Since MIDI continuous controllers can havea value between d and 127 any message coming in that is 63 or less will tum the subsonic filter OF while anything coming in above 63 will tum it on This same method is used to cont
16. RENT SETTING TO EXIT PROGRAM BOS HAME This screen allows you to compare the current EQ setting to a previously stored setting To do this press either the up or down arrow buttons until the program number name you want to compare the current setting to is displayed Press the NEXT soft button This will show the EQ curve of the program number you selected Pressing the soft button alongside the program number will switch to the curent EQ curve setting You can switch back and forth by continuing to press the top soft button iso possible to adjust the current EQ settings when the current EQ is displayed 6 14 Automatic Equalization 6 14a Brief overview The CEQ 280 provides you with a built in realtime analyzer RTA and a built in pink noise source for auto equalization of your room By using the built in pink noise source the frequency response of the sound system can be determined Since pink noise has an equal loudness in each of the 14 octave bands a flat frequency response should show in the RTA display as a straight line Because high frequency sound is attenuated more by air than lows and mids we seldom want to equalize a sound reinforcement system flat We generally wanta gentle high frequency roll offin the system response when measured in the middle of the seating area 6 14b To auto equalize your sound system Waming This procedure takes longer to describe than it takes to do After the first couple
17. T soft button to start taking the first sample The display should now look something like this on For approximately 1 14 minutes the CEQ 280 will adjust itself to uy the get the RTA display on the screen to look like the target response curve you selected When it has completed the sample the start sample 02 display will appear Move themicrophoneto another location in the room and press the START soft button to take the next sample After taking 3 to 6 samples press the EQ button to look at the resulting EQ curve The auto equalization process is now complete The curve you see was created by averaging the curve from each sample Beforedoing anyihing else store this cure Look at the curve for bands that have a lot of boost If the lows are boosted quite a bit you may want to reduce them some The detailed auto EQ section later in the manual describes how you can customize the target response curve to avoid this problem After doing this a few times you should be able to do it quite quickly This is best done when there are few people around Pink noise will never make the Top 10 Greatest Hits List After completing the Discrete Mode sampling you may want to perform a Continuous Mode sample to smooth your EQ curve This step is not necessary however a modest improvement in your EQ curve may be achieved with the addition of the continuous mode sample Note If you feel comfortable with
18. actory Default Seuings Contents INTRODUCTION 5 FEATURES 5 FRONT PANE 6 BACK PANI 7 BASIC CONNECTIONS 8 1 Connecting the CEQ 280 to Your 8 2 Connecting for Pink Noise 8 6 14a Brief overview 6 14b To auto equalize your sound system 15 EQ Display with RTA 16 The Feedback Finder ADVANCED OPERATIONS 2 Creating a Microphone Curve 3 Room Target Curve Selection Creation Combining Two EQ Curves by Addition 7 4a Overview 7 4b Adding two curv 4c Storing A 7 5 Setting the MIDI Channel 75d Remote Recall of Stored EQ Curves 7 5e Stereo Slave S 7 5f Dump EQ Curves to another CEQ 280 7 5g Dump EQ Curves to a MIDI Storage Device 7 5h Loading EQ Curves ee 75i MIDI Send Receive Filter al Setting the MIDI Switches 7 6 User access 8 0 9 0 10 0 11 0 12 0 13 0 5j MIDI Thru 7 5k Changing MIDI Controller Assignments The Security Lock USING THE CEO 280 WITH AN CEQ 28R Ge 280R MIDI IMPLEMENTATION SYSTEM EXCLUSIVE RECOMMENDED CONNECTION BLOCK DIAGRAM wania iaasi ea SPECIFICATIONS 1 0 INTRODUCTION Thank you for purchasing the Peavey CEQ 280 The new CEQ 280 14 octave graphic equalizer moves into the next generation of sound reinforcement products with features that expand upon the capabilities of the critically acclaimed MIDI programmable P
19. and notice the ta added after the last EQ band OPT DSPLT ya 7 4c Storing Use the following procedure to store the added curve 1 Press the Store bution STORE PROGRAM 116 ADD Gai EXIT Tomt Tom2 2 Iris possible to change the location number of your stored program Ifthe cursor is not alongside the program number move it there Use the up and down arrow buttons to change the location 3 Next positionthe cursoralongside the program name TomUin ourexample IFyou want you cannow change the name of the program 4 When youare satisfied with your changes pressthe TORE soft bution You should see the following display STORE COMPLETE 7 4d Recalling To recall a stored program 1 Press the Recall button RECALL PROGRAM 116 ADD AAI EXIT Tom Tom2 2 With the cursor at the program number a Program Preset number you want to rec as above 3 To recall the program as it was stored press the RECALL soft button You should see the following display shown above use the upand down arrow butions to select the I If the program was stored with an ADD the display will appear RECALL COMPLETE 4 Press the EXIT soft button to retum to the main EQ display Note Whenever the RECALL soft button is pressed a recall operation is carried out The following is a list of the parameters recalled EQ curve EQ gain ADD program On Off ADD program number EQ range S
20. anywhere close will do Tum off the noise momentarily If you tum off the noise by tuming down the volume be sure to note the position of the control so you can return it to the same place Now look at that RTA display If the display is not all the way to the bottom the pink noise must be increased in volume so that the background noise of the room does not affect the measurement 124E FER Wa MIC 29 9 Tum the pink noise back on and press the RTA button again The following display will appear AUTO RTA PARANETER EXIT MED DECAY DISPLAY RANGE 24dB The parameters in this display will be set automatically later 10 Press the AUTO soft button and the following display will appear NEXT MIC AUR1 INSTR CURVE CURVE EXIT CURVES CURUE4 CURUES CREATE 11 Move the cursor next to AVR1 if it is not already there 12 Press the NEXT soft button and the following display will appear NEXT AUTO EQ TO RM1 RM2 RM3 FLAT EXIT CURVEI CURUEZ CURVES CREATE 13 Select either RMI or RM2 as the target response curve These curves are described in greater detail later in the manual 14 Press the NEXT soft button and the following display will appear NEXT DISCRETE SAMPLES EXIT CONTINUOUS SAMPLES 45 Select discrete samples then press the NEXT soft button The following display will appear START DISCRETE SAMPLE 981 e EXIT gt 16 Press the STAR
21. ay a all me A computer controlled midi graphite equalizer z 3 S 3 S s Ss S w S a S e FENEY Intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompanying the product CAUTION Risk of electri CAUTION To reduce the qualified service personnel bech DO NOT OPEN of electric shock do not remove cover No user serviceable parts inside Refer servicing to WARNING To prevent electrical shock or fire hazard do not expose this appliance to rain or moisture Before using this appliance read the operating guide for further warnings 1 0 2 0 3 0 4 0 5 0 5 5 53 Connecting to a Mixer Effects Loop 6 0 BASIC OPERATION 61 Selecting and Editing Parameters 6 2 Memory Re initialization 63 Adjusting the View Angle 64 Subsonic Filter 65 EO Range 6 6 Manual Equalization 6 7 Level Adjustment 68 Bypass the EQ 6 9 Set EQ Flat 6 10 Storing EQ Curves 6 11 Recalling EQ Curves 6 12 Recall the Last EO 6 13 Compare EQ Curves 6 6 0 K 7 7 14 Automatic Equalization 1 Microphone Selection Creation T Ad Recalling 3 Global MIDI functions 7 5a MIDI Overview 7 3b F
22. ble to recall EQ curves via MIDI Thiscan be done fromanother CEQ 280or fromany device thatsends program change messages such asthe Peav PC 1600 For the remote recall to work several conditions must be met 1 Both units must be set to the same MIDI channel Unless the OMNI mode is on 2 A valid program change message must be received 7 5e Stereo Slave When two CEQ 280 s are connected via MIDI it is possible to have one CEQ 280 control the actions of the other For this to happen it is necessary for the controlling CEQ 28 to be set to send program change and continuous controller messages It is also necessary for the receiving or slave CEQ 280 to be set to receive program change and continuous controller messages Also both CEQ 280 s must be on the same MIDI channel and both units must have the controller numbers set the same when both units are CEQ 280 s When both CEQ 280 s are configured properly performing an action on the sending or Master CEQ 280 will cau the same action to be performed on the slave CEQ 280 For example Recalling preset 1 on the master unit will cause preset 1 to be recalled on the slave unit This does not guaranty thatthe presetsare the same only thatthe same preset numberis recalled To make sure that the presets are identical dump the preset or presets you want to use from the master CEQ 280 to the slave CEQ 280 Thi will insure that the presets are identical when recalle
23. button and begin to enter your room target curve NEXT AAA EI EXIT 0OCOOCODOOCOOCOOO0ODOOODO00O 32H2 Enter the frequeney response curve you hope to achieve If auto equalization with one of the room curves resulted in excessive boost of the low frequency bands lowerthase bands in the target response When creating a target response curve the curve should be fairly smooth and free of large abrupt changes 7 When you have completed entering the curve press the NEXT soft button to store the curve 8 Select from CURVE through CURVES as the storage location for your target EQ curve and press the STORE soft button The following screen will be displayed briefly STORE Store mew room curve tor EXIT ACURVEL STORE COMPLETE 7 4 Combining Two EQ Curves by Addition 7 40 Overview The CEQ 280 provides you with the capability to add two curves together This allows you 10 create separate room and effects EQ curves and store each of them so they can later be combined You could use this feature for example to add small amounts of high frequency boost or cut to an existing room FQ curve The Transparent Window Technique Once you equalize yoursound system forthe room youarein room curve this curve is no longer of any real interest What becomes important are different effect curves you want to add to the room curve The CEQ 280 makes this easy by only displaying the effect curve and not the adde
24. d When an individual EQ band is adjusted the corresponding EQ band on the slave unit is set the same 7 5f Dump EQ Curves to another CEQ 280 Tr is possible and sometimes even desirable to dump all presets one preset or the current EQ setting from one CEQ 280 to another The receiving CEQ 280 must be set up to receive on the same MIDI channel the sending CEQ 280 is transmitting on have System Exclusive enabled and not be in the RTA mode Ifa dump is received is this fashion the preset will be loaded into the same preset number it originated from in the transmitting unit e g if you dump preset 5 from one CEQ 280 to another it will be loaded to preset 5 in the receiving CEQ 280 Ifyou dump all the presets all of the presets in the receiving CEQ 280 will be replaced with the preset data from the sending CEQ 280 To dump alll presets from one CEQ 280 to another 1 2 Use the for right arrow button to select DUMP PRESE Press the Global bution Ise the left and right arrow button to position the cursor alongside MIDI SYS EX NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SND ZRCY MIDI SYS EX Press the NEXT soft button EXECUTE SYSTEM EXCLUSIVE EXIT DUMP PRESET ALL LOAD PRESET 881 and change this to ALL by using the uparrow button to scroll past preset 128 Pressthe EXECUTE soft button All the presets from the sending unit will replace all the presets on the
25. d room curve The room curve isstill there and is being used but it is transparent To create an effect curve add your room EQ to a flat EQ setting the display will show flat Now move the sliders to create an effect Although the two curves are combined in the equalizer they are still stored as two separate curves Although the graphic display only shows the effect curve the actual amount of dB cut or boost is displayed in the upper right comer of the screen Note The CEQ 280 hasa 12 dB maximum EQ capability therefore if you add two curves that would normally add up to more than 12 dB the CEQ 280 will max them out at 12 dB 7 4b Adding two curves Adding two curves imple as pressing a few butions and selecting the curves to add To add two curves 1 If you are not on the EQ main display page press the EQ button to go there 2 Press the OPT soft button NEXT CURR PROGRAM 116 ADD EXIT Tont SO 3 This display indicates that currently no curves are added Press the Jeer right arrowbutton until the cursor is alongside ADD and press the upor down arrow buttons to tum ADD on 4 Press the lefi or right arrow button until the cursor is alongside 001 and pressiap or down arrow buttons to select the curve that you want to add NEXT CURR PROGRAM 116 ADD 88I EXIT Tom on The two curves are now added Press the EXIT soft button 10 retum to the main EQ display
26. e leftor right arrow buton to select DUMP PRESET and change this to CUR by using the up arrow button to scroll past preset 128 and ALL 5 Pressthe EXECUTE softbutton All the presets from thesending unit will replaceall the presets on the receiving unit All preset numbers will be identical Sending MIDI Sustem Exclusive Message This indicates that a successful dump is in progress 7 5g Dump EQ Curves to a MIDI Storage Device Dumping EQ curvestoa MIDI storage device suchas the Peavey MIDI Streamerissimilarto dumpingthem to another CEQ 280 If you already have a request string setup in the MIDI Steamer you can use the MIDI Streamer to request a dump of the EQ curves See the User s Guide for complete details Otherwise you can set the MIDI Sueamer to wait for an incoming system exclusive dump Use the following procedure to dump the EQ curves to a MIDI Streamer when the MIDI Streamer is waiting for a system exclusive dump 1 Onthe MIDI Streamer press the SysX Record button Then press the Start bution The MIDI Steamer should now indicate that it is 2 On the CEQ 280 we will use the same procedure as dumping to another CEQ 280 press the Global button 3 Use the fand right arrow button to select MIDI SYS EX and press the NEXT soft button 4 Use the leffand rightarrowhuitons to select DUMP PRESET and change this using the upand down arrow buttons to ALL Or a
27. eavey CEO 28 The CEQ 230 still makes it easy for anyone to equalize a sound system with 4 octave precision The built in Real Time Analyzerand pink noise source let the CEQ 280 quickly and automatically equalize a sound system to a stored target requency response curve The feedback findercan then be usecl tofind and remove the remaining feedback problems When used asa house equalizer fora band the CEQ 280 offers significant advantages Once a band has established its sound house frequency response curve the CEQ 280 can automatically adjust itself to obtain that sound in each new venue and the CEQ 280 has enough storage locations for the busiest band When used in a studio setting the CEQ 280 allows many curves to be stored and compared to find the perfect EQ And because the CEQ 280 changes quietly from one curve to the next EQ curves can be changed in the middle of a song When changing a guitar effect or keyboard voice a MIDI program change command sent to the CEQ 280 will recall a corresponding EQ curve an obvious advantage in live instrument applications For sequenced songs program changes can be writen into the sequence to change the EQ settings When used in permanent installations the CEQ 280 not only makes setup a breez the setting from accidental changes gt but ts security lock will protect 2 0 FEATURES 28 Band Graphic Equalizer Constant EQ Filters on 4 Octave ISO Centers Real Time Analyz
28. egin the dump The sending CEQ 230 s display will respond with the following screen Sending MIDI System Exclusive Message The receiving CEG 2805 display will respond with Receiving MIDI System Exclusive Message This indicates that a successful dump is in progress The transferred preset will now be loaded into the desired preset location 001 in our example in the receiving unit 7 51 MIDI Send Receive Filter The MIDI send receive filter is used to enable disable the sending and or receiving of MIDI program change and continuous controller change functions as well asthe receiving of System Exclusive commands Toaccess the MIDI send receive filter 1 Press the Global buton NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SU MIDI SND RCU MIDI SYS EX 2 Position the cursor alongside MIDI SND RCV 3 Press the NEXT RECU PG CHG Y CC CHG Y SYS EX Vv EXIT SEND PG CHG Y CC CHG Y THRU N indicates that the action is enalsled while N indicatesa disabled action CC isthe abbreviation for Continuous Controller PG is the abbreviation for ProGram Use the up arrow button to make the changes you require Ifa second CEQ 280 is connected and correctly configured asa MIDI receiver the slider level overall level subsonic On Offand EQ range 6 or 12 dB will be automatically transmitted to it and will effect the same changes that you make If Program Change is enabled and Receive is also enabled on
29. eived the current FQ settings are loaded and become active 18 Load current EQ command byte DATA 39 bytes current data in program preset format Pi FOX Dump Current EO 8 bytes When received the CEQ 280 sends a Load Current EQ message with the current EQ data 19 Sump current EQ command byte F7 FOX Set MIDI controller numbers This message assigns MIDI control numbers for control of the EQ band levels subsonic filter and EQ range 1A Set MIDI controller numbers command byte xx Controller number for EQ level This controller is the first in the block of 29 controllers that control EQ level band 1 32 Hz through band 28 16 kHz vy Controller number for subsonic Aiter Be sure to set itso thatit does not conflict with the EQ controller block or EQ range XK Controller number for EQ range Be sure to set it so that it does not conflict with the EQ controller block or EQ range F7 EOX Each program preset consists of the following 39 bytes Byte Description CC value for EQ gain CC value for band 1 32 Hz CC value for band 2 40 Hz CC value for band 3 50 Hz RON es 28 CC value for band 27 12 5 kHz 29 CC value for band 28 16 kHz 39 MIDI status byte STAT2 31 ADD program preset number 32 8 character user label field 3 8 character user label field 32 8 character user label field MIDI Status Byte S Subsonic filter ON OFF R EO Range A ADD ON OFF x Don t care Note The CEQ 280 display
30. er Automatic Room Equal Built in Pink Noise Source Easy to Read 40 x 2 Character Display Non volatile Storage of 128 EQ Curves Nondestructive EQ Curve Addition EQ Curve Compare 12 dB in 1 dB steps 6 dB in 0 5 dB steps Combination XLR 4 Phone Input Connectors Electronically Balanced Inputs and Outputs Software Security Lock Feedback Finder MIDI Controllable MIDI compatible with the Original Peavey CEQ 28 CEQ 28R Relay Front Panel and Power Off Bypass Switchable 40 Hz Subsonic Filter Single 1 U Standard Rack Space RRE 3 0 FRONT PANEL 1 EQ Access manual Equalization functions including EQ adjustment EQ curve compare set EO flat add a curve and EQ curve with RTA display of the EQ output signal 2 RTA Access to micinput Real Time Analyzer andauto equalization functions including RTA display micinput level adjustment microphone compensation curve selection microphone curve creation room response target curve selection room response target curve creation and discrete and continuous auto equalization To get to all of these functions you need to press the RTA button twice 3 Bypass Toggles between equalizer active or hardware bypass of input to output 4 Global This provides access to EQ range subsonic filter view angle CEQ 28R CEQ 280R control security lock access status and MIDI functions 5 Store Storage and naming of EQ curves 6 Recall Access to recall of
31. f this section In all cases though data values cannot exceed 127 hex 7F The format below used for all system exclusive commands is as follows 00 Peavey s Manufacturer ID 04 Peavey Product ID CEQ 28 family ON MIDI channel OX Command byte XX Data bytes F7 End of Exclusive EOX The header used for all commands consists of FO 00 00 1B 04 ON where ON is channel 0 15 The command bytes and data formats are listed below 1 Toad a preset 87 bytes When received the preset data is loaded into receiving unit 01 Load preset command byte nn Preset to be loaded 0 127 DATA 78 bytes 39 data bytes sent a nibble ata time F7 EOX 2 Dumpa preset 9 bytes When received the unit sends the requested preset data in a load preset format see above 02 Dump preset command byte nn Preset to be dumped 0 127 7 EOX yi 6 A Load all preset 9993 bytes When received all 128 presets are loaded with the new data 03 Load all presets command byte DATA 9984 bytes 128 presets 39 bytes 2 nibbles CKSUM 25 compliment of the Modulo 128 sum of the DATA bytes CKSUM 1 Modulo 128 sum of lata The SUM of the received CKSUM and the Modulo 128 sum of the received data should equal zero F7 EOX Dump all presets 8 bytes When received the unit dumps all program presets in the load all presets format above 04 Dump all presets command byte F EOX Load Current EQ 47 bytes When rec
32. filier 1 Press the Global button and select ASSIGN 2 Move the cursor next to SUB and use the upand down arrow butions to tum the filter ON or OFF UNLOCKED LOCAL REM i RANGE 12dB EXIT SUB OFF FB FIND OFF VIEW ANGLE 7 When the subsonic filter is ON the 32 Hz and 40 Hz bands are removed from the EQ display This prevents these bands from being boosted and also indicates whether the filter is ON or OFF Gap 16K OPT a DSPL Subsonic Off OPT DEEL SE ee Subsonic Dn 6 5 EO Range The CEQ 280 EQ can be set up to operate in 6 dB or 12 dB mode In the 6 dB mode the EQ adjustment is made in 0 5 dB steps in the 12 dB mode the EQ adjustment is made in 1 dB steps To change the EQ range 1 Press the Global button NEST 4ASSIGN MIDI CHANNEL MIDI CHTRLR EXIT MIDI SW MIDI SND RCU MIDI SY S EX 2 If necessary use the Jeff or right arrow button to position the cursor alongside the word ASSIGN 3 Press the NEXT soft button UNLOCKED LOCAL REM 1 RANGE 12dB EXIT SUB OFF FB FIND OFF VIEW ANGLE 7 4 Use the up or down arrow bution to toggle between 6dB and 12dB 6 6 Manual Equalization FromthemainEQ display itis possible and sometimes even desirable to manually adjust the equalizer The following is how the main EQ display looks when the equalizer is set to flat EEN 16K OPT 7 DSPL To change the settings 1 Using the
33. fore using this product 2 All safety and operating instructions should be retained for future reference 3 Obey all cautions in the operating instructions and on the back of the unit 4 A operating instructions should be followed 5 This product should not be used near water ie a bathtub sink swimming pool wet basement etc 6 This produet should be located so that its position does not interfere with its proper ventilation It should not be placed flat against a wall or placed in a built in enclosure that will impede the flow of cooling air 7 This product should not be placed near a source of heat such as a stove radiator or another heat producing amplifier 8 Connect only to a power supply of the type marked on the unit adjacent to the power supply cord 9 Never break off the ground pin on the power supply cord For more information on grounding write for our free booklet Shock Hazard and Grounding 10 Power supply cords should always be handled carefully Never walk or place equipment on power supply cords Periodically check cords for cuts or signs of stress especially at the plug and the point where the cord exits the unit 11 The power supply cord should be unplugged when the unit is to be unused for long periods of time 12 If this product is to be mounted in an equipment rack rear support should be provided 13 Metal parts can be cleaned with a damp rag The vinyl covering used on some units can be cleaned with
34. h discrete curve This means that it get approximately 14 to the consideration of the current EQ curve 6 15 EQ Display with RTA This display presents both the current EQ settings in the top of the display and a real time display of the relative level of the audio signal being equalized in the bottom of the display The equalizer can be viewed and adjusted while viewing the RTA This display works well when used with the Feedback Finder see the next section To access this display press the DSPL soft button while in the main EQ display If you do not see any activity in the RTA display move the cursor all the way to the right past the 16 kHz band the display should look like the one below Pressing the up arrowbutton will increase the sensitivity the reference level in the display will become more negative No Acti in ATA Note Although this display looks just like the display you see when the RTA button is pressed they are different and display different information The RTA in this display responds to the audio signal going through the equalizer The RTA you see in the display when the RTA button is pressed represents the signal connected to the RTA input usually the AVR 1 sample mic S Hz ER 9 DSPL RTA 5 a Activity in RTA Unless the Feedback Finder is on the decay rate of the RTA can be set to one of three rates slow medium and fast The Feedback Finder always uses fast No
35. helock parameters including enabling the security lock setting the level of protection and establishing the access code The second area deals with user access once the CEQ 280 lock is enabled To setup the security lock press and hold the GLOBAL and lower soft button then apply power The following display will appear OK LOCK FRNT PNL N RECALL N MIDI N EXIT MAX RECALL ACCESS CODE anon A Pressing either the 2p or down button will lock the CEQ 280 You can then choose to unlock MIDI unlock recall of stored curves and establish the four digit user access code If you choose to unlock Recall you can then set the number of the highest curve that can he recalled For example if you want the users to have access tothree different curves they would need to be stored in locations 1 2and 3 The max recall number in the display should then be set to 3 When you complete setting the security lock press the OK soft button to store these changes If the security lock is enabled holding the GLOBAL and bottom soft button at power up will first require entry of the access code before the lock parameters can be changed WARNING BE SURE TO MAKE NOTE OF THE ACCESS CODE THAT YOU ESTABLISH If lost regaining access to the unit is difficult Contact Peavey customer service for assistance User access ifthe CEO 280 is locked pressing any button except RECALL if itis enabled w
36. ill cause the following display to appear ENTER Equalizer is Locked EXIT Enter Access Code 6000 Use the cursor buttons toenter the accesscode then press the ENTER soft button Ifthe corect code has be entered you will now have access to all CEQ 280 functions until either the power is removed or the user tums access back off To tum off access press the GLOBAL button to get to the global menu Select ASSIGN in the menu then press the NEXT soft button Move the cursor to ACI on the screen and change the Y yes to N no The CEQ 280 is now relocked ACCESS Y LOCAL FER RANGE i2dB EXIT SUB OFF FB FIND OFF VIEW ANGLE 7 If the wrong code is entered the following display will appear ACCESS DENIED 8 0 USING THE CEQ 280 WITH AN CEQ 28R CEQ 280R The CEQ 290 like its predecessor can control the CEQ 28R CEQ 280R To setup the CEQ 280 to control an CEQ 28R CEO 280R Press the Global button Select ASSIGN Position the cursor alongside REM 1 and change this to the number of the CEQ 28R CEQ 280R to control up to sixteen CEQ 28R CEQ 280Rs can be controlled by the CEQ 280 1 through g Position the cursor alongside LOCAL and press the up arrow button If all of the connections are propery made the CEO 28R CEO 280R will respondlimmediately For complete cletailson using the CEQ 28R CEQ 280R with an CEQ 280 see the CEQ 28R CEQ 280R s owners manual 9 0 MIDI IMPLEME
37. istic called proximity effect This causes the bass to be boosted as the source gets close to the mic Because most vocal mics are designed to be used up close the low frequency response is reduced to flatten the response up close This results in bass roll off at a distance Finally mics intended to be hand held often have reduced sensitivity at low frequencies to reduce handling noise 7 2 Creating a Microphone Curve Although it is recommended you use the Peavey AVR 1 microphone for automatic equalization it is possible for youto create a new microphone curve if you have the microphone frequency response curve from the manufacturer of the microphone you intend to use Note Whatis needed for this procedure is the true microphone frequency response curve from the manufacturer not the optimized frequency response curves found in advertisement copy for a microphone To Create a Microphone Curve 1 Press the RTA button twice 2 Press the AUTO soft button 3 Use the Jeftand right arrow buttons to position the cursor alongside CREATE NEXT MIC AURI INSTR CURVYE1 CURYE2 EXIT CURVES CURUE4 CURVES CREATE Press the NEXT soft button NEXT Create new mic curve from EXIT INSTR The CEQ 280 defaults to INSTR because it is a flat curve You can change this to use any of the stored curves as a starting point Use the up and down arrow buttons to select the curve with which you want to start 5
38. n when operating this amplification system in order to prevent a perma nent hearing loss if exposure is in excess of the limits as set forth above To ensure against potentially dangerous exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplifica tion system be protected by hearing protectors while this unit is in operation SAVE THESE INSTRUCTIONS VEY Features and specifications subject to change without notice A Peavey Electronics Corporation 711 A Street Meridian MS 49301 USA 601 485 PAX ARGS 57 Printed in US A 7 96 5195 mmm
39. nment for the sliders and switches or to select the MIDI messages the CEQ 280 sends and receives these facilities are available 7 56 Factory Default Settings The following is a list of MIDI default settings when shipped from the factory and when re initialized MIDI Channel 1 OMNI Mode off MIDI Controllers FQ gain on continuous controller 0 EO sliders on continuous conuollers 1 to 28 MIDI Switches Subsonic continuous controller 64 EQ range continuous controller 65 MIDI Send Receive Program Change Yes send and rece Continuous Controller Yes send and receive System Exclusive Yes receive only Thru NO MIDI System Exclusive Dump Preset 0 Load Preset 0 7 5 Setting the MIDI Channel 1 Press the Global button Use the deft and right arrow buttons to position the cursor alongside MIDI CHANNEL NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SNDZRC MIDI SYS EX 3 Press the NEXT soft burton MIDI CHANNEL Of EXIT OMNI MODE OFF Use the upand down arrow buttons to select the MIDI channel for sending receiving MIDI data Ifyou want to tum the omni mode on use the Jef arrow button to select OMNI MODE and toggle it from OFF to ON The OMNI setting allows the CEQ 280 to respond to valid MIDI commands received on any channel MES 7 5d Remote Recall of Stored EQ Curves Since the CEQ 280 accepts program change messages when tumed on itis possi
40. ny preset number that you want to dump 5 Press the EXECUTE soft button when you have made your selections 6 You should see the MIDI Steamer indicate that it is Receiving SysX Data You will also notice of the incoming data 7 When the dump is complete you will need to save the information on the MIDI Streamer to diskette Follow the instructions in the User s Guide for this procedure byte count 7 5h Loading EQ Curves Loading EQ curves is only necessary when you want to load an EQ curve to a different location than the one from which itis being dumped Otherwise just dump the EQ curves they ll end up in the same place on the receiving unit that they were in on the sending unit To dump a preset from one CEQ 280 to another and have it load into a different preset number in the receiving unit 1 Press the Global button 2 Use the eftand right arrow button to position the cursor alongside MIDI SYS EX NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SND RCU MIDI SYS EX 3 Press the NEXT soft button 4 Use the left or right arrow button to select LOAD PRESET and change this to the preset number you want the incoming preset to be stored in Press the EXECUTE soft button EXECUTE SYSTEM EXCLUSIVE EXIT DUMP PRESET ALL LOAD PRESET 881 nv WAITING FOR EXIT SYSTEM EXCLUSIVE 6 Press the EXECUTE soft button on the transmitting CEQ 28 to b
41. quencies Max Boost Cut EQ Band Filter Q Power requirements Dimensions Weight 5 Hz 50 kHz 1 dB Less than 0 01 003 typical Below 94 dBV ref TV 20 Hz 20 kHz Greater than 110 dB 20 Hz 20 kHz Electronic Balanced XIR or 14 phone TRS Greater than 10k ohms Greater than 40 dB 23 dBY 14V ms ref IN Electronic Balanced XLR and 4 phone TRS 100 ohms 17 dBV 7V Hi Z load Gef 1V 18 dBm 600 ohm load mw 32 Hz 16 kHz on ISO centers 12dB in 12 dB Range setting 6 dB in 6 dB Range setting 477 16 16 5 VAC 1A Width 19 inches 483 cm Height 1 75 inches 4 4 em Depth 9 inches 228 cm 6 25 pounds 284 kg LIMITED WARRANTY Peavey Electronics Corporation warrants to the original purchaser of this new Architectural Acoustics product that it is free from defects in material and workmanship If within one 1 year from date of purchase a properly installed product proves to be defective and Peavey is notified Peavey will repair or replace it at no charge Note Batteries and patch cords not covered Original purchaser means the customer for whom the product is originally installed Damage resulting from improper installation interconnection of a unit or system of another manufacturer accident or unreasonable use neglect or any other cause not arising from defects in material and workmanship is not covered by this warranty The warranty is valid only as to products purchased and
42. rol the EQ range only with a different controller number The CEQ 280 will not allow you to select the same controller number for both switches To change the MIDI switches 1 Press the Global button NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SND RCU MIDI SYS EX 2 Position the cursor alongside MIDI SW and press the NEXT soft button SET MIDI SWITCHES EXIT SUBSONIC CC 064 EG RANGE CC Gen 3 The CEQ 280 comes fromthe factory with the subsonic iterset lo controller 4and the EQ range 65 These can be changed to any controller number between 29 and 120 you want ettoconiroller 7 6 The Security Lock The security lock protects the CEQ 280 from self appointed sound engineers by requiring entry ofan access code before adjustments can be made The security lock in the CEQ 280 provides several levels of security to meet your needs The highest level of security prevents all access to the CEQ 280 via the front panel or MIDI unless a four digit access code is entered For other applications the front panel can be locked but MIDI accessallowed Or the front panel can be locked except for the ability to recall a selected number of curves This is particularly useful when the CEQ 280 is installed in a permanent system where the end users can recall curves for different situations but cannot adjust any of the curves Usingthesecurity lock can be divided into two areas The first sets t
43. s the program presets 0 127 as 1 to 128 The system exclusive data in messages 1 and 3 are transmitted a nibble at a time The high nibble top 4 bits is transmitted first followed by the low nibble 11 0 RECOMMENDED CONNECTIONS Input Output Connections The inputs and outputs on the CEQ 280 are a transformer like electronically balanced circuit when used in an unbalanced application be sure not to leave pin 2 or 3 on the XLR connector or the plug on the 1 4 connector unconnected BALANCED UNBALANCED XLR to 1 4 s F XLR to 1 4 Note To prevent ground loops the shield is best connected only at one end The end with the best earth ground In environments where a strong RF field exists the shield can be connected to ground at the other end with a 0 001 uf ceramic capacitor A 3 cireuit tip ring sleeve 4 plug should only be used with equipment that has connections on a 3 circuit tip ting sleeve jack 12 0 BLOCK DIAGRAM ji Jh zc E js asol TaIW g S N maying ur kisa suong we 7 sl 1055920140131W aa CG L 1 E au Uc yazhjeuy 13 0 SPECIFICATIONS Freguency Response THD EQ Flat Output Noise EQ Flat Dynamic Range EO Flat Mpui Input Impedance Input Common Mode Rejection Ratio Maximum Input Level Output Output Impedance Maximum Oulput Level Filter Fre
44. s you may want to set the CEQ 280 s EQ flat To do this 1 From the main EQ display press the DSPL soft button until the following display appears De FLAT Set Eaualizer Flat 7 DSPL 2 Pressing the FLAT soft button causes the following display to appear VES Set Esualizer FLAT NO ARE YOU SURE 3 Press the YES soft button to complete the operation Ifa unique unstored EO curve is lost by setting the FQ flat the curve can be still be restored by recalling curve 129 This is considered the last EQ and is available until another EQ curve replaces it 6 10 Storing EQ Curves There are 128 available program locations to store your EQ curves To store an EQ curve L Press the Store button You should see the following display STORE PROGRAM 201 EXIT NAME w Select the Program location 001 128 where the curve created is to be saved 3 Usingthe eftor night arrow bution move the cursor alongside Name ise the upand down arrow buttons to change the characters and form the program name A program name may be up to eight characters STORE PROGRAM 001 EXIT KillerEa soft button You should briefly see the following display STORE COMPLETE The CEQ 280 will then retum the main EQ display 6 11 Recalling EQ Curves Recalling EQ curves is easy To recall a curve 1 Press the Recall button You should see the following display RECALL PROGRAM G1 ADD EXIT NAME
45. sibility To adjust the view angle 1 Press the Global button You should see the following display NEXT ASSIGN MIDI CHANNEL MIDI CNTRLR EXIT MIDI SW MIDI SND RCU MIDI SYS EX 2 Ifthe is not alongside the word ASSIGN use the arrow buttons to move it until it is Then press the soft button to the left of the word NEXT This will allow you to adjust the parameters found in this menu UNLOCKED LOCAL REM 1 RANGE 12dB EXIT SUB OFF FB FIND OFF UIEW ANGLE 7 3 Using the left or right arrow button move the until it is alongside the words VIEW ANGLE The number to the right of the words VIEW ANGLE is the current setting 4 Use the upand down arrow buttonsto adjust the view angle The view angle has eight adjustment settings 0 7 When you have finished adjusting the view angle press the EXIT soft buton to retum to the Global selection page Pressing the EXIT soft button a second time will retum you to the EQ display You can also press the EQ bution to get to the EQ page Ji 6 4 Subsonic Filter Mast sound reinforcement speaker systems do not have a usable response below 40 Hz Amplifying signals below this frequency we mplifier power and risks damage to the speaker system The CEQ 280 has a builtin 40 Hz cut filter that reduces the amplitude of these signals The subsonic filter is generally left on for most sound reinforcement applications To change the subsonic
46. stored curves 7 Cursor Buttons Up Down Left and Right The kftand right arrow buttons move the cursor within the curent display to select a parameter for viewing or change The upand down arrow buitons change the selected parameter as indicated by the blinking or cursor Soft buttons The functions of these buttons are defined in the left side of the display Display Window 40 character by 2 line Liquid Crystal Display LCD with variable view angle adjustment for easy visibility ES SYSTEM READ AAA as ay owe hired COMPUTER CONTROLLED MIDI GRAPHIC EQUALIZER 4 0 BACK PANEL RTA microphone or line level input The XIR type mic input provides 12 volts to phantom power the recommended AVR 1 microphone The 4 phone line input can be used balanced with a tip ring sleeve Stereo plug or unbalanced with a tip steeve Mono plug EQ Input This is the main equalizer input for the CEQ 280 and can be connected balanced or unbalanced using either XIR type connectors or X phone plugs EQ Output XIR Balanced equalizer output The XLR and 14 jacks are wired in parallel FQ Output 4 phone Unbalanced with a tipsleeve Mono plug or balanced with a tip ting sleeve Stereo plug The XLRand 4 jacks are wired in Parallel Noise Source Output Pink noise output for room analysis Unbalanced with a tip sleeve Mono plug or balanced with a tip ting sleeve Stereo plug MIDI In This is a
47. te Changing the decay rate requires pressing the RTA button which temporarily bypasses the equalizer Press the RTA button twice the following display will appear Use the upand down arrow buttons to select the desired mate AUTO RTA PARAMETER EXIT MED DECAY DISPLAY RANGE 24dB Press the EQ button and DSPL soft button to return to the EQ RTA display 6 16 The Feedback Finder The Feedback Finder provides you with the means to wack down and eliminate any feedback problems With the Feedback Finder tumed on the cursor will rack bands with a potential problem You may then manually adjust the cut or boost to optimize the systems performance To tum the Feedback Finder on 1 Press the Global button NEXT ASSIGN MIDI CHANNEL MIDI CHTRLR EXIT MIDI SW MIDI SNDVRCY MIDI Sus EN 2 Press the NEXT soft button _ UNLOCKED LOCAL REM 1 RANGE 12dB EXIT SUB OFF FB FIND ON UIEM ANGLE 7 3 Use the effand rightarrotebuttons to position the cursor alongside HB FIND and press the por down arrow button to tum it on Once the Feedback Finder is on and you have auto equalized your system Go to EQ RTA see section 6 15 display and adjust RTA level Tum up the level until the system feeds back but not loud The cursor will jump to that band where feedback occurs 4 Press the down amow button to drop the level 1 dB Repeat a few times You should not need to reduce any band very much Try not to go to far it
48. the receiving unit the RECALL command will send the appropriate Program Change to the other unit A very useful application of these facilities will be found when using two CEQ 280 s in a stereo EQ configuration where you may require all EQ changes to be reflected by the second unit Note CEQ 28 s do not accept MIDI commands when in the RTA mode or send a program change when you recall the last EQ This is a protection mechanism for your EQ programs 7 55 MIDI Thru The MIDI Out jack on the rear of the CEQ 280 also acts as the MIDI Thru jack This allows any incoming MIDI messages to be echoed unaltered to the rest of the MIDI chain If you use the CEQ 280 to control one or more Peavey CEO 28R CEO 280Rs it is best to leave the MIDI Thru option tumed off This is tumed offon in the MIDI Send Receive display see previous section 7 5k Changing MIDI Controller Assignments Each ofthe FQ sliders BQ gain and bands can be individually controlled by MIDI The continuouscontroller number to which these respond can be changed in this display The range available is 0 to 120 The 29 EQ sliders are arranged as one block of MIDI numbers This block may be placed to start anywhere in the MIDI number range of 0 to 92 The unit s software will always keep them together as one block Ease of access is preserved in this way To enter the MIDI continuous controller display 1 Press the Global button NEXT ASSIGN MIDI CHANNEL MIDI CNTRL
49. ubsonic On Off User label If you want to recall a program but want to change the ADD On Off use the right arrow buton to position the cursor alongside the ADD legend Use the por down arrow buttons to tum the ADD on and off IF you want to add a different preset position the cursor alongside the ADD program number RECALL PROGRAM 116 D n EXIT Tomt Ton When you are satisfied press the RECALL soft button 7 5 Global MIDI functions 7 50 MIDI Overview The MIDI implementation on the CEQ 280 opens the door to many creative applications Stored curves can be recalled via MIDI individual EQ bands and controls can be adjusted via MIDI and stored curves can be sent and received Here are a few application ideas Two or more CEQ 288 can be connected via MIDI so EQ changes made in one unit will also be made in the other s This can be handy for stereo applications Because MIDI programs change commands cause curves to be recalled the CEQ 280 can be connected to other effects units in a guitar or keyboard instrument tig so that the EQ changes with the other effects The MIDI system exclusive dump of presets allow streel curves to be transferred to 3 MIDI storage device such as the Peavey MIDI Streamer or to another Peavey CEQ 28 For most MIDI applications the Peavey CEQ 280 comes initialized ready to go without having to adjust MIDI parameters However for those persons who need to change the MIDI controller assig

Peavey CEQ 280 User's Manual

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