DigiTech RP-20 VALVE User Manual Download Page 1

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Tube Preamp/Effects Processor & Controller

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User’s Guide

Summary of Contents for RP-20 VALVE

Page 1: ...TubePreamp EffectsProcessor Controller Please visit Digitech Electronics on the World Wide Web at http www digitech com User s Guide...

Page 2: ...PLUG WARNING A moulded mains plug that has been cut off from the cord is unsafe Discard the mains plug at a suitable disposal facility NEVER UNDER ANY CIRCUMSTANCES SHOULDYOU INSERT A DAMAGED OR CUT...

Page 3: ...N 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and EMC Directive 89 336 EEC as amended by Directive 93 68 EEC Digitec...

Page 4: ...owering up the unit Adjust Input and Output Use the Input level knob on the rear panel to adjust the Input level so that the loudest guitar signal occasionally lights the clip LED indicator Now adjust...

Page 5: ...tension Speaker Cabinets 10 RP 20 Valve direct with the Programmable Speaker Cabinet Emulator 11 Getting Around the Operating System 12 Program Mode 12 FX Edit Mode 12 Utility Mode 12 Assign Mode 12 G...

Page 6: ...pression Pedal 52 Linking a Parameter to a Modifier 53 Setting up an LFO and a Dynamic Modifier 53 Morphing Pedal Assignments 54 Volume Pedal Assignment 56 MIDI Functions MIDI Channels 57 MIDI Merging...

Page 7: ...ve Utility Settings 12 h 82 Request Parameter Value 17 h 83 Receive Parameter Value 18 h 83 Request All Current Parameter Values 23 h 83 Receive All Current Parameter Values for current Prg 84 Request...

Page 8: ...RP 20 Valve User Guide VI...

Page 9: ...Digitech RP 20 Valve Guitar Preamp Processor 1 Power Supply 1 Digitech warranty card Please save all packing materials They were designed to protect the unit from damage during shipping In the unlike...

Page 10: ...n to install the same on products previously manufactured 6 The consumer forfeits the benefits of this warranty if the product s main assembly is opened and tampered with by anyone other than a certif...

Page 11: ...ceive most of the information you need to optimize performance of the RP 20 Valve This display has several functions and they are as follows 2a Program Number The three large digits located in the upp...

Page 12: ...that there is clipping in the digital effects domain This meter is also used to show note activity while the RP 20 Valve is in Tuner Mode 2g Effect Routing Matrix The Effect Routing Matrix shows the s...

Page 13: ...e next utility page when the RP 20 Valve is in Utility mode 5f Assign The Assign button is used for making any continuous controller assignments to footswitches For more information about assigning fu...

Page 14: ...erall output level of the RP 20 Valve 5 Right Output This is the right output jack of the RP20 Valve 6 Left Mono Output This is the left Mono audio output of the RP20 Valve This output jack can be use...

Page 15: ...s and all out rock guitar Digitally Controlled Analog Wah Conveniently located in the preamp section lies a digitally controlled Analog Wah module The Analog Wah will produce classic wahs modern wahs...

Page 16: ...le the delay feedback may be controlled in another For more information on MIDI CCs please see pg 51 LFOs When you use LFOs parameter values can be controlled automatically between a defined minimum a...

Page 17: ...supplied you with four different module sizes and they are as follows Full module type FUL 3 4 module type 3 4 Half module type HLF Quarter module type 4th Dividing the S DISC II s processing power a...

Page 18: ...For those of you out there that feel that bigger is better this set up should work quite nicely for you First plug into the input of the RP 20 Valve RP 20 Valve run out of both of the outputs into th...

Page 19: ...he Mixer You can set the Output mode to either Stereo splitting the signal into a stereo soundfield or Mono summing the stereo signal on page 1 of the Utilities menu by using the 2 button to select th...

Page 20: ...ns to enter the FX Edit mode A helpful hint If you look at the Effect Routing Matrix while you press the FX Preamp or Effects button the currently selected module will flash Your RP 20 Valve uses Page...

Page 21: ...rtion 3 Analog Wah 4 Compressor 5 10 band EQ 6 Noise Gate To dial in the preamp tone that is ideal for you whether it be Distortion types Analog Wah 10 band EQ or noise gate adjustments simply press t...

Page 22: ...Notice that the module for editing will Flash in the display Once you are at the module that you wish to edit you can begin to use the Next Page and Previous page buttons to move you through the modul...

Page 23: ...ress and hold the Bypass Tuner footswitch This will take you directly to the tuner function 1 As you play a note on the guitar the large number display will tell you which note you are playing while t...

Page 24: ...he Data wheel while the RP 20 Valve is in Tuner mode Another feature available in the RP 20 Valve Tuner mode is the ability to set the amount of signal that is passed to the output while tuning This h...

Page 25: ...scroll the cursor to the next character you want to change 4 Use the 1 button and the Data wheel to change the letter s case The 2 button and Data wheel are used to select numbers The 3 button and Dat...

Page 26: ...he new program 3 Press the Store button again The top line of the display briefly reads after which you are taken to the program you have just stored The newly created program is now loaded and can no...

Page 27: ...ng From any program within the Preamp Section you can select and edit any preamp effect by performing the following procedures Editing Distortion Types 1 From program mode press the Preamp button once...

Page 28: ...press the Preamp button until the Wah module is flashing The display will appear something like this 2 Pressing the 1 knob and then turning the Data wheel will either turn the Wah On or Off The 2 butt...

Page 29: ...de press the Preamp button until the Noise Gate module is selected and is flashing and the display appears something like this 2 At this point you can press the 1 button and then turn the Data wheel t...

Page 30: ...lete listing of the effect configurations of the RP 20 Valve can be found on page 76 FX Edit Mode 1 From Program mode press the Effects button The display looks something like this 2 Successive presse...

Page 31: ...used in Factory Program 4 and would like to use it in Program 98 simply scroll to the modulation module then press the 4 button and then turn the Data wheel to recall the default which happens to be F...

Page 32: ...ode press the Program button twice The top line of the display reads When this message is displayed the original version of the program is temporarily loaded and active 2 To return to the edited versi...

Page 33: ...osition use the Next Page or Previous Page buttons to scroll the cursor to the next character you want to change 3 Press the 1 button and then turn the Data wheel to change the letter s case Use the 2...

Page 34: ...meters of the module in order to the right sound you re looking for The parameters of each effect module are reached through a series of pages 1 Press the Effect button The display looks something lik...

Page 35: ...e RP 20 Valve gives you control over crucial output functions of the RP 20 Valve such as Master Mix Master Volume and On and Bypass of the cabinet emulator for each program 1 To access the Output modu...

Page 36: ...Quad Cho Octal Cho Dual Fla Dual Pha Pedal Pha St Tremolo Auto Pan Dual Dtn Quad Dtn Octal Dtn Smooth Pch Dual Pitch Quad Pitch Octal Pch St Pitch M o d u l e T y p e 4 t h M o d u l e T y p e H L F...

Page 37: ...Stereo Delay 2sec 20 1sec 20 CombFilter SlapRight Doubling 400ms 30 500ms 30 Max Repeats 1sec 0 2sec 0 600ms 30 Flange Delay FlatLitD300 FlatMedD300 HeavyFlDly ThroatyDly LoSweepDly DoublGonzo Flangbe...

Page 38: ...ect module Wah Position Controls the pedal position of the Analog Wah effect module Ranges from 1 to 128 The Expression pedal must be assigned to this parameter in order for module to operate Wah Type...

Page 39: ...es how quickly the the gate closes after the signal falls below the Threshold Ranges from 1 to 10 Compressor Compressor Parameters Level Controls the signal input level fed to the module Ranges from O...

Page 40: ...unique ambient effects 6 Room Echo A true stereo multi tap delay for creating small ambient spaces The delays are divided into four sections of early reflections These reflections can be placed anywh...

Page 41: ...ecay range just as real rooms do so changing TYPE also changes the decay time of the room Types are Studio Room Wood Room Vocal Plate Concert Hall Plate Reverb Chamber Cathedral Arena Cement Shelter a...

Page 42: ...nds in the Stereo Gated Reverb Blend Cross mixes reverberations from the left side into the right side and vice versa This can be used to increase the realism of the simulated room by adding reverbera...

Page 43: ...signal Ranges from Off to 50 Out L R Adjusts the overall level of the left right side of the reverb Ranges from Off to 100 Prim Out L Adjusts the overall level of the left side of the Primary reverb R...

Page 44: ...d the delayed signal s pitch changes just like a tape recording s pitch raises when you play it faster By moving the time back and forth you hear a sound that goes in and out of tune When combined wit...

Page 45: ...us voices 1 4 DEPTH2 adjusts the intensity of chorus voices 5 8 Ranges from 0 to 30 milliseconds Wander Speed Controls the secondary LFO speed of chorus voices 5 8 This is a secondary oscillator for v...

Page 46: ...he flanger effect It works very well with both clean and distorted guitar sounds By setting the Speed and Depth parameters to higher settings this will add more depth and body to the overall guitar si...

Page 47: ...be heard most when you listen to music of the 70 s Guitarist of the day loved their Phasers A Phaser is a great effect to use when playing clean and funky rhythms Phaser Parameters Dry Lvl Controls th...

Page 48: ...he chiropractic problems that come with moving bulky speaker cabinets The Rotary speaker is directly responsible for some of the most unique sounds in music The applications for this effect are so div...

Page 49: ...ob up and down But you probably have better things to do than turn a volume control up and down throughout a whole song so let the RP 20 Valve do it for you Aside from speed and depth parameters the t...

Page 50: ...sults See figure 4 2 on page 41 Pitch Shifters and Harmony The pitch shifter allows you to move sound from one pitch to another It accomplishes this by recording a small part of the original sound and...

Page 51: ...Scale Sets the scale type for the Harmony you want to hear Scale types include Major Minor Harmonic Minor Melodic Minor Dorian Mixolydian Lydian Lydian Augmented Major Pentatonic Minor Pentatonic Blue...

Page 52: ...to one side while not delaying the other side will change the detuner s stereo imaging greatly Detuner Parameters FX Lvl Controls the signal input level fed to the Module Ranges from Off to 100 Dry Lv...

Page 53: ...y the tempo beats per minute then dividing that answer by the desired sub beats Sound like a hassle Yeah we thought so too So the RP 20 Valve takes care of all the calculations for you All you have to...

Page 54: ...each voice in the Module can have any delay time up to 100 of DELAYTIME Ranges from 0 to 100 Dly C D See Dly A B Out Adjusts the overall level of the Delay Ranges from Off to 100 Pan Controls the ster...

Page 55: ...ules to take out the Lows and build up your mids Here are a couple of simple examples If you feel your guitar tone is just a little dull try cutting some of the lower frequencies you always have to bo...

Page 56: ...low frequency controls with variable frequency Bands 1 and 2 range from 25 Hz to 20 kHz Bands 3 and 4 range from 1 kHz to 20 kHz Band Width Controls the bandwidth of the selected frequency The higher...

Page 57: ...ecial 1 and SP2 Special 2 C F Delay Controls the delay time of the Chorus or Flanger voice Ranges from 0 to 40 milliseconds Delay Time Sets the delay time for the delay tap Ranges from 0 to 300 millis...

Page 58: ...e assignment of an expression pedal This parameter also shows the pedal travel range Ranges from 0 to 100 Out This parameter is used to set the overall output level of the Whammy module Ranges from 0...

Page 59: ...ou can create an auto panner without using an auto panner module Simply link an effect s output pan parameter to the LFO modifier and the LFO will move that parameter back and forth This modifier can...

Page 60: ...P aftertouch Real Time modifiers RT LF1 LF2 dY1 dy2 Int Pedal Int NOTE The MUTE and THRU effect types do not have any Parameters to connect to so they will not appear in the parameter list 5 Press the...

Page 61: ...Dynamic Modifier 1 Enter assign Mode by pressing the Assign button 2 Use the Next Page and Previous Page buttons to scroll to the first of two Dyn pages The display looks something like 3 You can pre...

Page 62: ...istorted Tube distortion type to a clean Solid State preamp tone type or morph between digital effects Morphing can be done by linking an Expression Pedal to the Morph pedal parameter Morphing To assi...

Page 63: ...rtion types but it also gives you the ability to morph between effect modules This can be done when using Effect Configurations 6 12 or 15 which are split configurations The procedure for assigning th...

Page 64: ...to assign the Volume Pedal parameter control and the display will appear something like this 5 Now that the assignment has been made make sure that you store your changes and press the Program button...

Page 65: ...0 Valve to transmit on MIDI Merging MIDI merging allows incoming MIDI data to be merged with any MIDI data generated by your RP 20 Valve before being sent to the MIDI Out Thru port Selecting the MIDI...

Page 66: ...oll to Page 5 of the Utility menu pressing either the Next Page or Previous Page buttons until you reach page 5 Now press the 1 button and then turn the Data wheel to turn the setting to On The displa...

Page 67: ...s computers or sequencers for backup storage or organization This option allows you to select the program to be dumped and when dumping to another RP 20 Valve the program location where you want the p...

Page 68: ...r default screen Bulk Dump This option allows you to dump all resident Programs in memory to an external recording device like a patch librarian computer or sequencer for backup storage or organizatio...

Page 69: ...tility button and scroll to page 13 of the Utility Menu by pressing either the Next Page or Previous Page buttons The display reads 2 To initiate the reset press the function 1 button and then turn th...

Page 70: ...either Local On or Global On mode or Global Off Output Mode You can output the signal of your RP 20 Valve as either a Stereo or Mono signal 1 Press the Utility button and then press either the Next o...

Page 71: ...assign any currently selected Program to a patch footswitch in the currently selected bank do the following 1 Once the selected Program has been chosen press the Assign button once The display reads 2...

Page 72: ...rameter you want to link is displayed and selected Once the parameter has been selected press the Assign button and the display will appear like this 2 Now press the footswitch that you wish assign an...

Page 73: ...n t need to worry about setting up this option However if you plan to use the RP 20 Valve for continuous control over other MIDI devices either in conjunction with the RP 20 Valve or by themselves you...

Page 74: ...iddle and the display locks in indicating you are in tune 3 In both methods of tuning the tuner is referenced to A 440Hz If you prefer tuning sharp or flat according to the A reference press the 3 but...

Page 75: ...and then turn the Data wheel to insert spaces and press the 4 button and then turn the Data wheel to copy and paste characters 8 To copy a character position the cursor under the character you want t...

Page 76: ...o Cfg 15 25 Dirty Clean Squeeze Cfg 1 Bank 6 Preamp Only 1 26 Warm Rythm Cfg 13 27 Metal Scoop Cfg 13 28 Twin Combo Cfg 13 29 Custom British Stack Cfg 13 30 Rocket Mang Cfg 13 Bank 7 Preamp Only 2 31...

Page 77: ...Bank 16 Acoustic Guitar 76 New Age Acoustic Cfg 4 77 Simulated 12 String Cfg 2 78 Chorus Delay w PEQ Cfg 4 79 Acoustic Phase Panner Cfg 7 80 Stereo Detune Reverb Cfg 7 Bank 17 Dynamics Effected 81 Du...

Page 78: ...nd dual reverb 7 Every Breath You Fake The Classic Police sound with Chorus and Reverb and just a tad of distortion can be heard in this program 8 Rockin SRV Tones of quite possibly the greatest blues...

Page 79: ...ortions 22 Clean Crunch Chor Pong Clean and Crunch tones can be heard here with Chorus and Pong delays 23 L Dirt R Clean This dual distortion path program combines both dirty and clean preamp tones 24...

Page 80: ...driven tube distortion with delay help you achieve the sweet home Chicago tones Bank 9 Country Tones 41 Kentucky Fried Picken This is an ideal program for chicken picken country overdrive with delay a...

Page 81: ...ed with Quad Chorus Delay and Reverb to produce great solos for the studio 58 Power Stack This powerful tube distortion program uses a Dual Reverb effect module which will add size to any tone 59 Comp...

Page 82: ...gram dual reverb delay and dual detune 75 Jazzy Chorus A classic jazz essential tone is heard in this one with dual chorus and reverb Bank 16 Acoustic Guitar 76 New Age Acoustic The Dual Detune and Re...

Page 83: ...ore with this high EQ boosted program that also uses a Pre delay Dual chorus and Reverb modules 93 Bowed Church Bass This Bright Clean tube voicing along with Dual detuner and Reverb can help you emu...

Page 84: ...ule 2 1 2 size module KF Whole size module Dual Output Comfigurations Take notice that several effect configurations ie 12 and 14 use dual outputs This indicates that Dual distortion paths can be run...

Page 85: ...h 5th 4th 3rd 2nd 2nd 3rd Whole Tone C A G F E D C A G Int Oct 7th 6th 5th 4th 3rd 2nd 3rd 2nd 2nd 3rd 2nd 3rd Hlf Whl Dim C B b A G F E E b D b C B b A Int Oct 6th 5th 6th 5th 4th 2nd Whl Hlf C B A G...

Page 86: ...U Processing 10 0 MIPS Address ALU Processing 15 0 MIPS Multiplier Size 24 bits x 24 bits Input Section Connector 1 4 Unbalanced Nominal Value 8 dBu Maximum Level 10 dBu Impedance 470 ohms Output Sect...

Page 87: ...es sages Local ON OFF All Notes Off Active Sense Reset Notes Mode 1 OMNI ON POLY Mode 2 OMNI ON MONO Mode 3 OMNI OFF POLY Mode 4 OMNI OFF MONO O Yes X No X X X O O See SysEx see appendix X N A 1 16 1...

Page 88: ...p www digitech com MIDI Basics MIDI Channels The RP 20 Valve can be set so that it communicates on 1 of 16 discrete MIDI channels Some devices may also be set up to transmit or receive information on...

Page 89: ...number The different procedure s names and general formats are described in the Procedures Section dd 1 1 dd 1 2 dd n 1 dd n 2 dd Data as needed by procedures Since the standard MMA MIDI Specification...

Page 90: ...rogram into the RP 20 Valve The number of program bytes to be received n is different for each program If the RP 20 Valve is sent a Receive One Program procedure where the program number is not a vali...

Page 91: ...User Bank is selected When yy 01 h Factory Bank is selected When yy 02 h and zz 00 h Bypass toggle is selected zz Program Number REQUEST PARAMETER VALUE 17h SYS_HEAD 17 h aa1 aa2 bb s1 bb s2 F7 h aa...

Page 92: ...e xth Module aa Number of available parameters in the FX Module dd Current value for the wth parameter The Receive All Current Parameter Values procedure is used to receive Parameter Values from the R...

Page 93: ...hold on the front panel of the RP 20 Valve The device will respond with a Receive Key Accepted procedure RECEIVE KEY ACCEPTED 56h SYS_HEAD 56 h cc1 cc2 F7 h cc Code echoed for the Key Scan received 0...

Page 94: ...SYS_HEAD 22 h F7 h The Reset Factory Settings procedure causes the RP 20 Valve to reload a sections of the EPROM factory defaults and perform a hard reset REQUEST USER DEFAULTS 13h SYS_HEAD 13 h yy1 y...

Page 95: ...Button 2 17 h Footswitch 4 6 h Function Button 3 2 h Footswitch 5 14 h Function Button 4 10 h Footswitch 6 7 h Preamp Button 3 h Footswitch 7 15 h Effects Button 11 h Footswitch 8 23 h Store Button 1...

Page 96: ...FX Module Class Type 00 22 00 24 00 18 00 07 00 00 00 06 00 03 20 Character Program Name dynamic 00 31 00 3A 00 52 00 76 00 62 00 20 00 32 00 3A 00 47 00 74 00 52 00 76 00 20 00 33 00 3A 00 44 00 6C...

Page 97: ...133 h S State Dist Page 1 00 h On Off 01 h Default type Page 2 02 h Distortion Type 03 h Distortion Gain 134 h S State EQ Page 1 00 h On Off 01 h Default type Page 2 02 h Level 03 h Phase Page 3 04 h...

Page 98: ...h 4 0kHz Page 9 1D h 5 0kHz 1E h 6 3kHz 1F h 8 0kHz 20 h 10 0kHz Page 9 21 h 12 5kHz 22 h 16 0kHz 23 h 18 0kHz 41 h St GEQ 8 Page 1 00 h On Off 01 h FX Type 02 h Default Page 2 03 h Level 04 h Phase L...

Page 99: ...Page 2 03 h FX Level 04 h Dry Level 05 h Balance Page 3 06 h Speed 07 h Depth 08 h Waveform Page 4 09 h DlyA 0A h DlyB Page 5 0B h OutA 0C h PanA 0D h OutB 0E h PanB 20 h Quad Cho Page 1 00 h On Off...

Page 100: ...h Horn Lvl 09 h Rotor Lvl Page 4 0A h Dummy ignore 0B h Horn Slow Speed 0C h Horn Slow Depth 0D h Horn Slow Doppler Page 5 0E h Dummy ignore 0F h Horn Fast Speed 10 h Horn Fast Depth 11 h Horn Fast D...

Page 101: ...DetnD Page 4 0A h DetnE 0B h DetnF 0C h DetnG 0D h DetnH Page 5 0E h DlyA 0F h DlyB 10 h DlyC 11 h DlyD Page 6 12 h DlyE 13 h DlyF 14 h DlyG 15 h DlyH Page 7 16 h Spread 26 h Smooth Pitch Page 1 00 h...

Page 102: ...OutE 1B h OutF 1C h OutG 1D h OutH Page 9 1E h Spread 27 h Stereo Pitch Page 1 00 h On Off 01 h FX Type 02 h Default Page 2 03 h FX Level 04 h Dry Level 05 h Balance Page 3 06 h Shft 07 h Dtn 08 h Ou...

Page 103: ...re Page 4 09 h DlyA 0A h DlyB 0B h DlyC 0C h DlyD Page 5 0D h OutA 0E h PanA 0F h OutB 10 h PanB Page 6 11 h OutC 12 h PanC 13 h OutD 14 h PanD 17 h S Delay 370ms 1C h S Delay 700ms Page 1 00 h On Off...

Page 104: ...Back 08 h TapIt ignore Page 4 09 h Smear0A h LPF Type 0B h Freq 0C h Gain Page 5 0D h OutL 0E h OutR 37 h Chorus Dly Page 1 00 h On Off 01 h FX Type 02 h Default Page 2 03 h FX Level 04 h Dry Level 05...

Page 105: ...dary Damp Page 7 0F h Primary Decay 10 h Primary Size 11 h Primary Reflection Page 8 12 h Secondary Decay 13 h Secondary Size 14 h Second Reflection Page 9 15 h Primary OutL 16 h Primary OutR Page 10...

Page 106: ...C 09 h Delay D Page 4 0A h Out A 0B h Bal A 0C h Out B 0D h Bal B Page 5 0E h Out C 0F h Bal C 10 h Out D 11 h Bal D Page 6 12 h Shape Type 13 h Spread Page 7 14 h Diffusion 15 h Feedback Delay 16 h F...

Page 107: ...herst New Hampshire 03031 U S A FAX 603 672 4246 Digitech RP 20 Valve and S DISC II are registered trademarks of the Harman Music Group Incorporated Copyright 1997 the Harman Music Group Incorporated...

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