User manual KORG AX3000B - 1

E 1 Precautions Location Using the unit in the following locations can result in a malfunction. · In direct sunlight · Locations of extreme temperature or humidity · Excessively dusty or dirty locations · Locations of excessive vibration · Close to magnetic fields Power supply Please connect the designated AC adapter to an AC outlet of the correct voltage. Do not connect it to an AC outlet of voltage other than that for which your unit is intended. Interference with other electrical devices Radios and televisions placed nearby may experience reception interference. Operate this unit at a suitable distance from radios and televisions. Handling To avoid breakage, do not apply excessive force to the switches or controls. Care If the exterior becomes dirty, wipe it with a clean, dry cloth. Do not use liquid cleaners such as benzene or thinner, or cleaning compounds or flammable polishes. Keep this manual After reading this manual, please keep it for later reference. Keeping foreign matter out of your equipment Never set any container with liquid in it near this equipment. If liquid gets into the equipment, it could cause a breakdown, fire, or electrical shock. Be careful not to let metal objects get into the equipment. If something does slip into the equipment, unplug the AC adapter from the wall outlet. Then contact your nearest Korg dealer or the store where the equipment was purchased. THE FCC REGULATION WARNING (for U.S.A.) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help. Unauthorized changes or modification to this system can void the user's authority to operate this equipment. ii CE mark for European Harmonized Standards CE mark which is attached to our company's products of AC mains operated apparatus until December 31, 1996 means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC). And, CE mark which is attached after January 1, 1997 means it conforms to EMC Directive (89/336/ EEC), CE mark Directive (93/68/EEC) and Low Voltage Directive (73/23/EEC). Also, CE mark which is attached to our company's products of Battery operated apparatus means it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC). * Company names, product names, and names of formats etc. are the trademarks or registered trademarks of their respective owners. iii Table of Contents Introduction ................................................................................................. 1 Welcome Aboard! ....................................................................................................1 Main Features ..........................................................................................................1 A Bassist's Guided Panel Tour .................................................................... 3 Front panel...............................................................................................................3 Effect edit section ............................................................................................3 Parameter Edit section ....................................................................................5 The Program Write/Exit section and Other settings.........................................5 Display/Cursor section.....................................................................................6 Bank display ....................................................................................................7 Bank/Program select section ...........................................................................8 Effect Control section.......................................................................................8 ESS/Pedal indicator/Tuner display ..................................................................9 Rear panel .............................................................................................................10 Power supply .................................................................................................10 Inputs and Outputs ........................................................................................10 MIDI ...............................................................................................................11 S/P DIF OUT..................................................................................................11 Setup........................................................................................................... 12 Output settings.......................................................................................................12 Output select function .....................................................................................12 Basic connections ..................................................................................................12 Example of connection to a bass amp (or amps) ...........................................13 Example of connections to a mixer or recorder ..............................................14 Using the AX3000B with a MIDI device or computer .............................................14 Playing the AX3000B................................................................................. 15 Program Select mode ............................................................................................15 Selecting a program........................................................................................15 Individual mode......................................................................................................15 Operations in Individual mode ........................................................................16 Activating or deactivating the Key Lock function....................................................16 Activating the Key Lock function.....................................................................16 Deactivating the Key Lock function.................................................................16 Creating and Storing your own Programs............................................... 17 Signal path .............................................................................................................17 Creating your own Program ...................................................................................17 Naming a program (rename)..................................................................................19 Storing a program ..................................................................................................19 Restoring a setting to its original value (Original Value) ........................................20 iv Tuner (Bypass, Mute)................................................................................. 21 Tuning procedure...................................................................................................21 Calibrating the tuner...............................................................................................22 Explanations of the Effect Types .............................................................. 23 A. DRIVE/AMP models ..........................................................................................23 Drive models...................................................................................................23 Amp models....................................................................................................24 B. CABINET models ..............................................................................................25 C. PRE effect .........................................................................................................27 D. MOD (Modulation) effects .................................................................................30 E. DELAY effects ...................................................................................................35 F. REVERB effects ................................................................................................39 Using the expression pedal to control parameters ................................ 41 Expression pedal settings ......................................................................................41 Expression Target Quick Assign.....................................................................41 Setting the Expression Target ........................................................................42 Control switch settings ...........................................................................................44 Switching each effect on/off............................................................................44 Using TAP TEMPO to set a parameter...........................................................44 Effect control...................................................................................................44 Controlling ESS ..............................................................................................45 Adjusting the sensitivity of the pedal......................................................................45 Using ESS to control a parameter............................................................. 47 ESS parameters .............................................................................................47 Specifying the target parameter controlled by ESS ........................................48 Example ESS settings ....................................................................................48 Using the control switch to operate ESS ........................................................49 Control via MIDI ......................................................................................... 50 Connecting a MIDI Device or Computer ................................................................50 Setting the MIDI Channel (GLOBAL "MIDI CH")....................................................51 Program Change (GLOBAL "PCHG OUT") ...........................................................51 Control Change (GLOBAL "CCHG I/O") ................................................................51 Parameter Change (GLOBAL "SYEX OUT") .........................................................52 Backing up and Restoring Program Data (GLOBAL "DUMP CUR", "DUMP ALL") ................................................................53 Backing Up .....................................................................................................53 Restoring ........................................................................................................54 Restoring the Factory Preset Programs................................................... 55 Troubleshooting ........................................................................................ 56 v Specifications............................................................................................. 57 Appendix .................................................................................................... 58 Effect parameters...................................................................................................58 Index ........................................................................................................... 60 vi WELCOME ABOARD! M What is ? (Resonant structure and Electronic circuit Modeling System) is KORG's proprietary sound modeling technology which precisely reproduces the complex character and nature of both acoustic and electric instruments as well as electronic circuits in real world environments. emulates a wide variety of sound generation characteristics including instrument bodies, speakers & cabinets, acoustic fields, microphones, vacuum tubes, transistors, etc. · 72 different modeling effect variations are built-in, and you can use up to seven different effects simultaneously (including noise reduction). You can also use insert effects at the same time. · Use the effect model select knobs to instantly change your selection for each of the five effect categories (pre-effect, drive/amp, modulation, delay, reverb). · You can connect your own external effect device(s) as an insert effect. · A sound you create using the AX3000B's modeling effects (including the on/off status of an external effect) can be saved as a "program." Internal memory can hold 96 of your own original programs, and 32 preset programs are provided. · There's also an Individual Mode that lets you use the foot switches to individually turn each effect on/off. · You can assign the expression pedal to control a variety of effect parameters, as well as using it as a wah pedal or volume pedal -- a great feature for live performances. · There's a Quick Assign function that makes it easy to assign parameters to the expression pedal. 1 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL ESS Pedals Effect Type · Detailed and powerful modeling sounds delivered by Korg's "REMS" modeling technology. Tuner MAIN FEATURES Creating and Storing To maximize your chances of enjoying a long and toneful relationship with your AX3000B, please read this manual at least once, and (as they say), "use the product as directed." Keep the manual for future reference after you've read it; you'll want to re-read it later at some point to pick up cool tips you may have missed the first time around. Playing any thanks for adding the TONEWORKS Modeling Signal Processor AX3000B to your sonic arsenal. Whether you're playing live or recording in the studio, we're sure it'll give you countless hours of great bass tones that will feel as good as they sound! Setup Panel Tour Introduction Introduction · The AX3000B features an Expression Step Sequencer (abbreviated as ESS in this manual) that provides step control of a variety of effect parameters, giving you new possibilities of sounds that were unavailable until now. · The delayed sound can be maintained when you switch between programs that have the same delay type and TIME parameter settings. (The HOLD function of HOLD DELAY or the FREEZ function of the FREEZ effect assigned to the control switch will be cancelled at this time.) Reverb can also be maintained when you switch between programs of the same reverb type. · The AX3000B provides a control switch that allows you to do things like set the delay time via TAP TEMPO, switch insert effects on/off, or switch the speed of a rotary speaker ... again, must-have features for live performance. · An Auto Chromatic Tuner with a highly-visible LED indicator is built-in, letting you tune while bypassed or muted. · AUX IN jacks let you play along with the playback from a connected audio device. · S/P DIF optical output jack and MIDI IN/OUT jacks provide great potential for recording and expansion. · You can use the "AX3000B Sound Editor" editor/librarian software to visually edit the AX3000B's numerous parameters, and to save programs. Contact a Korg distributor in your country for details on how to obtain this software and about its operating requirements. You can download the software from the following website, or your local distributor's website. *http://www.korg.com 2 Here we're going to learn about the buttons and other controls on the AX3000B's top and rear panel. FRONT PANEL 1.1 Effect Category buttons Use these buttons to select the effect category you want to edit using value knobs 1­5, or to switch individual effects on/off. The button for an effect will be lit if that effect is on, blinking while that effect is being edited, or dark if that effect is turned off. 3 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL EFFECT EDIT SECTION ESS Pedals Effect Type Tuner Creating and Storing Playing Setup Panel Tour A Bassist's Guided Panel Tour Introduction When you press a button, its LED will blink; now you can use value knobs 1­5 to edit the effect parameters of that category. If you want to turn off an effect that is currently on, press the effect category button for that effect (it will blink), and then press the button again to turn the effect off (the LED will go dark); the display will indicate "--OFF--". 1.2 Effect Model selectors Use these to select the effect model that you want to use for each effect category. You can choose from eleven types of pre-effects, sixteen types of drive/ amp models, and eleven types of modulation, delay, and reverb effects. When you operate a selector, its Effect Category button will light, and you can use value knobs 1­5 to edit its parameters. NOTE: The parameters will be initialized when you change the effect type. NOTE: When you change the drive/amp model type, the cabinet model will automatically change to an appropriate type. 1.3 INSERT button This turns an insert effect on/off. The indicator will be lit if the signal input/output to an external effect device is turned on, or dark if this is turned off. 1.4 CABINET button Use this button to turn a cabinet model on/off, or when you want to change the cabinet model type that was automatically chosen when you selected a drive/ amp model. To turn the cabinet model off, press the cabinet model button to make the display indicate the cabinet model name (this means that the cabinet model is on), and then press the cabinet model button once again. The display indicates "--OFF--" and the cabinet model will be turned off. NOTE: The cabinet model is used only if the AMP/LINE setting is "Ln (LINE)" and the drive/amp model is turned ON. In this state, the cabinet model will be used if it is turned ON, and the cabinet icon will appear in the LCD display. 1.5 NR/PROG LVL (Noise reduction/Program level) button Use this button when you want to adjust the noise reduction or the level (volume) of each program. HINT: The factory program level is 5.0. For details on how to create your own sounds, refer to "Creating your own Program" on p.17. 1.6 EXP/CTL (Expression/Control) pedal assignment button Use this button when you want to change the assignment of the expression pedal or control switch. HINT: For details, refer to "Using the expression pedal to control parameters" on p.41. 1.7 RENAME button Use this to change the program name (p.19). Use the /® buttons to move between spaces (characters) in the display, and use value knob 1 or the L/M buttons to change the character at that space. 4 PARAMETER EDIT SECTION 2.1 Value knobs 1­5 Use these knobs to adjust the parameters of each effect. From the left, we refer to these as value knobs 1­5. These knobs edit the settings of the effect you've selected from an effect category button (when the button is blinking), as well as the settings for the cabinet, noise reduction, program level, expression pedal, ESS, and control switch settings. The LEDs will light to indicate the knobs that are currently active. The knob LED will change to blinking for the parameter that you're currently operating. HINT: For details on the parameters controlled by each knob, refer to "Explanations of the Effect Types" on p.23. NOTE: When you're performing a RENAME or WRITE operation or making GLOBAL settings, you can use value knob 1 to change the value. 2.2 Delay Time Tap button You can set the delay time by pressing this button at the desired interval. 2.3 ESS button Use this button when you want to start or make settings for the ESS (Expression Step Sequencer). HINT: For details, refer to "Using ESS to control a parameter" on p.47 THE PROGRAM WRITE/EXIT SECTION AND OTHER SETTINGS 5 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL ESS Pedals Effect Type Tuner Creating and Storing Playing Setup Panel Tour Introduction 3.1 AMP/LINE button This button lets you make appropriate settings for the device to which your AX3000B is connected. The icon in the display will change depending on the destination device you've selected (p.12). 3.2 GLOBAL button You can press the GLOBAL button and use the /® buttons to move through the menus in the following order. After you've selected a menu item, use value knob 1 or the L/M buttons to edit the value. MIDI CH: PCHG OUT: CCHG I/O: SYEX OUT: DUMP CUR: DUMP ALL: DOUT LVL MIDI channel setting Program change message output setting Control change message input/output setting System exclusive message output setting Send the current program data from the MIDI OUT jack Send all of the AX3000B's data from the MIDI OUT jack Set the S/P DIF output level in a range of five levels; ­12, ­6, 0, +6, +12 [dB] (p.51) (p.51) (p.51) (p.52) (p.53) (p.53) 3.3 WRITE button Use this button when you want to save the settings you've created (p.19). 3.4 EXIT/TUNE button Use this button to cancel a "program save" operation or a setting you've made. If the name display shows a program name, pressing this button will start up the built-in Tuner. By pressing and holding down this button, you can enable or disable the Key Lock function, which disables operation of the buttons, selectors, and knobs (p.16, 21). DISPLAY/CURSOR SECTION This area displays the program name, and the name and value of the parameters you're editing in the amp or effect section. 4.1 L/M buttons Use these to edit the value of parameters. 6 4.3 Name display Displays program names, effect names, or parameter names. 4.4 Value display This indicates the value of the parameter you are editing. If the displayed parameter value matches the unedited value (i.e., the value that's stored in the program), the Original Value icon will light. If the name display shows the program name, and the program name or BANK LED are not blinking, the bank number and program number are shown in the form of "2-1" (which in this example indicates bank 2, program 1). 4.5 OUTPUT icon This indicates the AX3000B's output destination setting (AMP/LINE). 4.6 CABINET icon This will light when the Cabinet model is active. 4.7 EXP icon This will light when the expression pedal can be used. 4.8 Quick Assign icon This will light if you're operating a parameter that can be assigned to the expression pedal, indicating that the Quick Assign function is available. BANK DISPLAY ESS 5.1 Bank display This indicates the bank number. If the Tuner is operating, it indicates the note name (p.21). 7 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL Pedals Effect Type Tuner Creating and Storing Playing Setup Panel Tour ® 4.2 /® buttons Use these to select the parameter you want to edit, or to edit the program name. Introduction BANK/PROGRAM SELECT SECTION 6.1 BANK UP/DOWN switches In Program Select mode (p.15), pressing Bank Up will increment the bank, and pressing Bank Down will decrement the bank. In Program Select mode, you can press and hold the Bank Up switch which turns on Individual mode (the LED located at the upper left of the switch will light green). In Individual mode, you can use the program select switches to turn the Pre-Effect, Drive/Amp model, Modulation effect, and Delay effect on/ off individually. You can also use the Bank Down switch to turn the Reverb effect on/off. 6.2 Program Select switches, Program LEDs Use these switches to select programs. The program LED located at the upper left of each switch will light red to indicate your selection. In Individual mode, you can use these switches to turn the Pre-Effect, Drive/Amp model, Modulation effect, and Delay effect on (LED lit green) or off individually. EFFECT CONTROL SECTION 8 7.2 EXP (Expression) pedal This controls volume, wah, or another effect parameter. For each program, you can assign just what this pedal will control (p.41). When using ESS, manual control of the sequence speed or step is assigned to this pedal. By advancing this pedal forward to press the switch that's mounted under it, you can turn the expression pedal or the effect being controlled by ESS on/off. (This switching operation is not available if the EXP pedal is controlling the volume.) ESS/PEDAL INDICATOR/TUNER DISPLAY NOTE: What happens when you change programs will depend on the target that's assigned to the expression pedal, as follows. If the expression pedal is assigned to VOLUME, DELAY INPUT, or REVERB INPUT, or if it is assigned to the same target as in the previous program, the pedal position will be valid immediately after the program change, and the pedal indicator will light. In other cases, the value specified within the program will be valid immediately after the program change, and the pedal indicator will be dark until you move the pedal. 9 Index Appendix Spec. Troubleshooting Factory settings 8.1 ESS/Pedal indicator/Tuner display When you're using ESS, this indicates the total number of steps (LED: green) and the current step (LED: red). When you're using the expression pedal, this indicates the current position of the pedal (LED: red). When the Tuner is operating, this functions as a tuning meter (LED: red or green). MIDI/DIGITAL ESS Pedals Effect Type Tuner Creating and Storing Playing Setup Panel Tour 7.1 CONTROL switch This switch controls an effect. For each program, you can assign what effect parameter this switch will control. For details, refer to "Control switch settings" on p.44. Introduction REAR PANEL POWER SUPPLY DC9V Connect the included AC adapter here. INPUTS AND OUTPUTS 10.1 INPUT jack Connect your bass to this jack. 10.2 AUX IN jack (stereo mini) Connect the analog output of your audio device here. NOTE: This convenient input jack lets you connect your CD/MP3 player or other audio device and play your bass along with a favorite song. Use the output volume of your audio device to adjust the playback volume. 10.3 INSERT jacks (SEND, RETURN) You can connect external effect processors or stompboxes to these jacks. Connect SEND to the input of your external effect device. Connect RETURN to the output of your external effect device. HINT: The incoming sound is always output from the SEND jack. HINT: If a 1/4" phone plug is connected to the RETURN jack, the signal received at the RETURN jack will be processed if INSERT is ON. If nothing is connected to the RETURN jack, the signal received at the INPUT jack is always used. 10.4 OUTPUT jacks (L/MONO, R) These are analog output jacks (balanced/unbalanced TRS). If you're using a mono output, use the L/MONO jack. 10 10.6 PHONE jack (stereo mini) Connect your headphones to this jack. 11.1 MIDI OUT jack This jack transmits MIDI data. Use it when you want to control a connected external MIDI device from your AX3000B. 11.2 MIDI IN jack This jack receives MIDI data. Use it when you want to control your AX3000B from a connected external MIDI device. S/P DIF OUT 12.1 S/P DIF OUT jack This is an optical digital jack for S/P DIF output. 11 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL ESS Pedals Effect Type Tuner Creating and Storing Playing Setup MIDI Panel Tour 10.5 LEVEL knob Adjusts the output level from the OUTPUT jacks and the PHONE jack. Introduction Setup NOTE: You must turn off the power of all your equipment before you make connections. If you ignore this warning, you may damage your bass amp or speaker system, and may experience malfunctions! OUTPUT SETTINGS OUTPUT SELECT FUNCTION Here's how to specify whether you're connecting the AX3000B to a bass amp or to a mixer/recorder. If you set the output select setting to "Ln (Line)," the cabinet model setting is ignored. The cabinet model setting is also ignored when the drive/ amp model is OFF, and won't be affected by this setting. 1. Press the AMP/LINE button. 2. Use Value knob 1 or the L/M buttons to select the connection destination. AP: When connecting the AX3000B's output to an amp. Ln: When connecting the AX3000B's output (including S/P DIF OUT) to a mixer, recorder, or headphones. "to AMP." If If you choose AP, the LCD display will show the OUTPUT icon you choose Ln, the OUTPUT icon "to LINE" will appear. NOTE: Use the "Ln (LINE)" setting if you're connecting the AX3000B to a bass amp that has a broad frequency response, such as a bass amp with a built-in tweeter. BASIC CONNECTIONS 1. Use audio cables to connect the AX3000B's OUTPUT L/MONO and R jacks to a mixer/recorder or bass amp (p.14). If desired, you can also connect an external effect processor. To do this simply connect SEND to the input of your external processor, and RETURN to the output of your external processor. NOTE: If you're making connections in mono, use the OUTPUT L/MONO jack. If you connect only the OUTPUT L/MONO jack, only the L-channel of sound will be output. NOTE: If you want to use headphones, plug them into the PHONES jack. If you do, signal from the OUTPUT jack(s) will no longer be heard. 2. Turn the LEVEL knob located on the rear panel of AX3000B all the way toward the left (as seen from the rear), setting the volume to 0. 3. Plug your bass into the rear panel INPUT jack. 4. Connect the included AC adaptor to the rear panel DC9V power inlet, and then connect the plug to an AC outlet to turn on the power. 12 NOTE: Use the GLOBAL menu setting "DOUT LVL" to adjust the S/P DIF OUT output level. External effect processor to your mixer/recorder or guitar amp LINE/AMP Headphones Monaural phone jack INPUT Bass INPUT SEND RETURN OUTPUT L/MONO to your MIDI sequencer/computer R PHONES EXAMPLE OF CONNECTION TO A BASS AMP (OR AMPS) · If you want to connect the AX3000B to your bass amps, connect the OUTPUT L/MONO and R jacks to the inputs of your amps. Be sure to select the appropriate connection (p.12). HINT: If you're connecting the AX3000B directly before your combo amp or head, set the rear panel LEVEL knob to the maximum position. Monaural phone jack INPUT OUTPUT L/MONO INPUT Monaural phone jack Bass amp(s) 13 Index Appendix Spec. Troubleshooting Factory settings MIDI/DIGITAL Bass ESS Pedals Effect Type Tuner Creating and Storing Playing Setup Panel Tour 5. To adjust the volume, turn up your amp or mixer and the AX3000B's rear panel LEVEL knob to a desired level. Introduction EXAMPLE OF CONNECTIONS TO A MIXER OR RECORDER · When using the AX3000B for direct-line recording, connect the OUTPUT L/ MONO and R jacks to the input jacks of your mixer or recorder. Be sure to select the appropriate connection (p.12). Bass Monaural phone jack OUTPUT L/MONO LINE IN 1 PAN L MIC1 MIC2 MIC3 BAL OR UNBAL BAL OR UNBAL Tape Send LINE IN 2 PAN R MIC4 MIC5 MIC6 Tape Retuen INPUT R PHONES BAL OR UNBAL BAL OR UNBAL BAL OR UNBAL BAL OR UNBAL MONO MONO MONO MONO L LINE IN 1 LOW CUT 75Hz 18dB/OCT L BAL OR UNBAL L BAL OR UNBAL L BAL OR UNBAL LINE IN 2 LOW CUT 75Hz 18dB/OCT LINE IN 3 LOW CUT 75Hz 18dB/OCT LINE IN 4 LOW CUT 75Hz 18dB/OCT LINE IN 5 LOW CUT 75Hz 18dB/OCT LINE IN 6 LOW CUT 75Hz 18dB/OCT BAL OR UNBAL MIC U 10 -10dBV GAIN U 60 MIC -10dBV GAIN U MIC -10dBV GAIN U MIC -10dBV GAIN U MIC -10dBV GAIN U MIC -10dBV GAIN R LEVEL +4 -10 R LEVEL +4 -10 R LEVEL +4 -10 R LEVEL +4 -10 +10dB -40dB +10dB -40dB 10 60 +10dB -40dB 10 60 +10dB -40dB 10 60 +10dB -40dB 10 60 +10dB -40dB 10 60 TRIM TRIM TRIM TRIM TRIM TRIM LINE IN 7-8 LINE IN 9-10 LINE IN 11-12 LINE IN 13-14 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U AUX 1 MON/ EFX +15 U U 1 +10 +20 U EFX +15 U U U U EFX +15 +15 U U EFX +15 +15 U U EFX +15 +15 U AUX 1 MASTER EFX +15 U NORMALLED 2 EFX +15 +15 2 EFX 2 2 EFX 2 2 EFX 2 2 EFX 2 2 2 +20 AUX 1 SELECT A UX RETURNS U EQ U EQ U EQ U EQ U EQ