digi-tech RP12 User manual

RP-12
Guitar Signal Processor/
Foot Controller and Preamp
A Harman International Company
S-DISC II™
PROCESSING
Owner's Manual

DECLARATION OF CONFORMITY
Manufacturer’s Name: Digitech
Manufacturer’sAddress: 8760 S.Sandy Parkway
Sandy, Utah 84070,USA
declares that the product:
Product Name: RP-12
Product Options: All (requires a Class II power adapter that conforms to the require-
ments of EN6005,EN60742,or equivalent).
conform to the following Product Specifications:
Safety: EN 60065 (1993)
IEC 65 (1987) withAmendments 1,2 & 3
EMC: EN 55013 (1990)
EN 55020 (1991)
Supplementary Information:
The product herewith complies with the requirements of the LowVoltage Directive
73/23/EEC and EMC Directive 89/336/EEC as amended by Directive 93/68/EEC.
.Digitech
President of Digitech
8760 S.Sandy Parkway
Sandy, Utah 84070,USA
Effective October 17,1996
European Contact: Your Local DigiTech Sales and Service Office or
International Sales Office
3 Overlook Drive #4
Amherst,New Hampshire 03031,USA
Tel [phone]
Fax [phone]
RP-12 Owner’s Manual

1
Table Of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 4
Lithium Battery Warning . . . . . . . . . . . . . . . . . . 5
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Section 1 - Startup Supplying power . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Line Conditioning. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . 7
Pedalboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Display Window . . . . . . . . . . . . . . . . . . . . . . . . 8
Program Buttons. . . . . . . . . . . . . . . . . . . . . . . . 8
Parameter Buttons . . . . . . . . . . . . . . . . . . . . . . 8
Effect Library Buttons . . . . . . . . . . . . . . . . . . . . 8
Global Buttons . . . . . . . . . . . . . . . . . . . . . . . . . 8
Main Output Level. . . . . . . . . . . . . . . . . . . . . . . 9
Continuous Control Pedal . . . . . . . . . . . . . . . . . 9
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . 9
Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Right Output. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Left/Mono Output . . . . . . . . . . . . . . . . . . . . . . . 9
Headphone Output . . . . . . . . . . . . . . . . . . . . . . 9
AC Line Input . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MIDI In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MIDI Out / Thru. . . . . . . . . . . . . . . . . . . . . . . . . 9
MIDI and Audio Setups. . . . . . . . . . . . . . . . . . . 10
Section 2 - Basic Operations Program Architecture. . . . . . . . . . . . . . . . . . . . . . . . 12
Tuning with the RP-12. . . . . . . . . . . . . . . . . . . . . . . 13
Changing the Tuning Reference . . . . . . . . . . . . . . . 14
Assigning Programs to Footswitches . . . . . . . . . . . . 14
Assigning Parameters to Footswitches. . . . . . . . . . . 15
Section 3 - Programming Using the Function Keys . . . . . . . . . . . . . . . . . . . . . 16
More Special Characters . . . . . . . . . . . . . . . . . . . . . 16
The Effects Library Buttons . . . . . . . . . . . . . . . . . . . 17
About the I / O Module. . . . . . . . . . . . . . . . . . . . . . . 17
Modifying Factory Programs . . . . . . . . . . . . . . . . . . 17
Basic Program Creation. . . . . . . . . . . . . . . . . . . . . . 18
Selecting an Algorithm . . . . . . . . . . . . . . . . . . . 18
Naming Programs. . . . . . . . . . . . . . . . . . . . . . . 19
Storing Programs . . . . . . . . . . . . . . . . . . . . . . . 19
Section 4 - Effects and Parameters About the Effects Library . . . . . . . . . . . . . . . . . . . . . 22
Analog Effects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Equalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cabinet Emulator . . . . . . . . . . . . . . . . . . . . . . . 24
Reverbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Gated Reverbs . . . . . . . . . . . . . . . . . . . . . . . . . 29
RP-12 Owner’s Manual
Table of Contents

2Delay / Sampler. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pitch Shifters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Detuners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Whammy™. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Arpeggiators. . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Modulation Effects. . . . . . . . . . . . . . . . . . . . . . . . . . 38
Choruses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Flangers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Phasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Tremolos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Auto Panners . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Mixers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
More . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Noise Gates . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
DSP Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Wahs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Duckers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Phase Inverter . . . . . . . . . . . . . . . . . . . . . . . . . 44
Section 5 - RP-12 Functions About the RP-12’s Internal Functions. . . . . . . . . . . . 46
Pedalboard Functions . . . . . . . . . . . . . . . . . . . . . . . 47
MIDI functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Section 6 - Pedalboard Setup Pedalboard Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Pedals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Pedal Assignments. . . . . . . . . . . . . . . . . . . . . . 50
Program Changes . . . . . . . . . . . . . . . . . . . . 50
Program Up & Down . . . . . . . . . . . . . . . . . . 50
List Up & Down . . . . . . . . . . . . . . . . . . . . . . 50
Toggle CC 0-127. . . . . . . . . . . . . . . . . . . . . 50
CC Pedal 0-127. . . . . . . . . . . . . . . . . . . . . . 50
CC Pedal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Assign CC Pedal . . . . . . . . . . . . . . . . . . . . . . . 51
CC Pedal. . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Calibrate Pedal. . . . . . . . . . . . . . . . . . . . . . . . . 51
PrgList Assign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
List size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
LED Assign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Naming Banks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Section 7 - RP-12 Setup Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Output Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Cabinet Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Sales Banner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Reinitializing the RP-12 . . . . . . . . . . . . . . . . . . . . . . 57
RP-12 Owner’s Manual

3
Section 8 - MIDI Setup About the MIDI Set-Up. . . . . . . . . . . . . . . . . . . . . . . 58
MIDI Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Send Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Program Send Map . . . . . . . . . . . . . . . . . . . . . . . . . 59
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Device Map . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Program Receive Map. . . . . . . . . . . . . . . . . . . . . . . 60
Assign CC # to a Parameter . . . . . . . . . . . . . . . . . . 60
Display CCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Bulk Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Program Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
MIDI merge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Section 9 - Appendix Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Factory Algorithm Diagrams. . . . . . . . . . . . . . . . . . . 67
Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
MIDI Implementation Chart . . . . . . . . . . . . . . . . . . . 78
Preset List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Harmony Interval Chart . . . . . . . . . . . . . . . . . . . . . . 81
RP-12 Owner’s Manual

4
Introduction Congratulations, and thank you for purchasing the DigiTech RP-12
Guitar Signal Processor / Preamp. The RP-12 offers you a fresh
approach to guitar sound creation, giving you the hottest tones and
total control of the best digital effects in the industry. DigiTech’s revolu-
tionary S-DISC II ™ processor makes it all happen. Its digital multi-
effects are second to none, and when you combine its power with the
warmth and clarity of the best analog preamp on the market, with up to
10 real-time continuous controller links per Program, nothing else even
comes close. Special features of the RP-12 include:
• Full bandwidth effects (20-20kHz)
• 24-bit signal path, 48-bit internal data transmission
• Stereo Effects
• Instant Module and Parameter access
• Harmony/Intelligent Pitch Shifting
• Whammy™ effects
• Three Distortions types including Grunge™
• Silencer™ Noise Reduction
• Programmable cabinet emulation for running direct to a mixing
console (great for both studio and live applications)
• Built in FX Continuous Controller Pedal
• Built-in MIDI merging
• MIDI Transmit and Receive mapping
• Extensive real-time MIDI control of effects and parameters
• New and improved Chromatic Tuner
For the first time, all of your effects needs can be filled by a single unit
with 16-bit digital clarity. This owner’s manual is your key to under-
standing the powerful world of the RP-12. Read it carefully.
Safety Precautions
The symbols shown above are internationally accepted symbols that
warn of potential hazards with electrical products. The lightning flash
with arrowpoint in an equilateral triangle means that there are danger-
ous voltages present within the unit. The exclamation point in an equi-
lateral triangle indicates that it is necessary for the user to refer to the
owner’s manual.
CAUTION
ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RP-12 Owner’s Manual

5
These symbols warn that there are no user serviceable parts inside the
unit. Do not open the unit. Do not attempt to service the unit yourself.
Refer all servicing to qualified personnel. Opening the chassis for any
reason will void the manufacturer’s warranty. Do not get the unit wet. If
liquid is spilled on the unit, shut it off immediately and take it to a deal-
er for service. Disconnect the equipment during storms to prevent
damage.
U.K. ONLY - 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 SHOULD YOU INSERT A
DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCK-
ET. Do not use the mains plug without the fuse cover in place.
Replacement fuse covers can be obtained from your local retailer.
Replacement fuses are 13 amps and MUST be ASTA approved to
BS1362.
Lithium Battery Warning CAUTION! This product contains a lithium battery. There is danger of
explosion if battery is incorrectly replaced. Replace only with an
Eveready CR 2032 or equivalent. Make sure the battery is installed
with the correct polarity. Discard used batteries according to manufac-
turer’s instructions.
ADVARSEL! Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes
kun batteri som anbefalt av apparatfabrikanten. Brukt batteri returneres
apparatleverandøren.
ADVARSEL! Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri av samme fabrikat og type. Levér
det brugte batteri tilbage til leverandøren.
VAROITUS! Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
VARNING! Explosionsfara vid felaktigt batteribyte. Använd samma
batterityp eller en ekvivalent typ som rekommenderas av apparattil-
lverkaren. Kassera använt batteri enligt fabrikantens instruktion.
RP-12 Owner’s Manual

6
Warranty 1. The warranty registration card must be mailed within ten days after
purchase date to validate this warranty.
2. DigiTech warrants this product, when used solely within the U.S., to
be free from defects in materials and workmanship under normal
use and service.
3. DigiTech liability under this warranty is limited to repairing or replac-
ing defective materials that show evidence of defect, provided the
product is returned to DigiTech WITH RETURN AUTHORIZATION,
where all parts and labor will be covered up to a period of one year.
A Return Authorization number may be obtained from DigiTech by
telephone. The company shall not be liable for any consequential
damage as a result of the product’s use in any circuit or assembly.
4. Proof-of-purchase is considered to be the burden of the consumer.
5. DigiTech reserves the right to make changes in design or make
additions to or improvements upon this product without incurring any
obligation to install the same on products previously manufactured.
6. The foregoing is in lieu of all other warranties, expressed or implied,
and DigiTech neither assumes nor authorizes any person to assume
any obligation or liability in connection with the sale of this product.
In no event shall DigiTech or its dealers be liable for special or con-
sequential damages or from any delay in the performance of this
warranty due to causes beyond their control.
DigiTech™, S-DISC II™, Whammy™ and Silencer™ are registered
trademarks of the Harman Music Group Incorporated.
The information contained in this manual is subject to change at any
time without notification. Some information contained in this manual
may also be inaccurate due to undocumented changes in the product
or operating system since this version of the manual was completed.
The information contained in this version of the owner’s manual super-
sedes all previous versions.
RP-12 Owner’s Manual

7
Section 1 - Startup
Supplying power Line Conditioning - The RP-12 is sensitive to voltage drops, spikes,
and surges. Interference such as lightning or power “brownouts” can
seriously, and in extreme cases, permanently damage the circuitry
inside the unit. Here are some ways to avoid this type of damage:
• Spike/Surge Suppressors - This is an inexpensive solution to all
but the severest of AC line conditions. Surge protected power
strips usually cost only slightly more than unprotected strips,
making them a worthy investment for protection of all your valu-
able gear.
• AC Line Conditioners - This is the best way to go for total protec-
tion from improper line voltages, albeit the more expensive way.
Line conditioners constantly monitor for excessively high or low
voltages and adjust accordingly, thus delivering consistent power
levels.
Front Panel Controls The front panel controls and functions of the RP-12 are as follows
(refer to diagram):
1) Pedalboard - The RP-12’s pedalboard consists of twelve switches
and a real-time Continuous Controller Pedal. The ten main switches
are labeled 1 - 0 (10) and can be set to turn effects on or off,
change Programs, or toggle continuous controllers. From the
Factory, switches 1-5 are assigned to change programs. Switches
6-0, are used to turn effects on or off. The Bank Up/Bypass (top
row, far right switch) move Up through any of ther 25 banks in the
RP-12 and will allow you to bypass all the effect functions of the
RP-12 by pressing the footswitch down. When the RP-12 is in
Bypass mode, the instrument sound is passed directly from the
input to the outputs without effects. The Bank Down/Tuner Switch
(bottom row, far right) allows you to move down through any of the
25 banks, by pressing, or access the tuner by pressing and holding
the footswitch.
123
45678
Section 1 - Startup
RP-12 Owner’s Manual

82) Display Window - The display window shows all current operating
and programming information and is comprised of several parts: the
LCD display, the input level meter, the Program number indicator,
and DSP Clip indicator LEDs. The LCD display shows all Program
names, Parameters and Parameter values, and is the communica-
tion interface between you and the RP-12. The input level meter
monitors the level of the signal entering the digital section. In the
Program number indicator window you will find the currently select-
ed Program number. This changes as you scroll through the avail-
able Programs. The functions of the Input Level Meter and DSP Clip
indicator LEDs are as follows:
• Input Level Meter - Displays the strength of the signal after the
preamp section in 6 dB steps, entering the digital section.
• DSP Clip - Indicates digital information overflow in the processor.
When lit, distortion may be heard in the output signal. The guide-
line for this indicator is: let your ears be the judge . If this indica-
tor lights regularly and no audible distortion is present, it can be
ignored. If distortion is audible in the output signal, one or more
of the internal analog effects levels or the DSP Master level in the
Program must be turned down to eliminate the problem.
3) Program Buttons - The Program <UP> and <DOWN> keys allow
you to scroll through the RP-12’s effects Programs. The <STORE>
key allows you to store a Program in memory for later recall. The
<COMPARE> key allows comparison of an edited Program with the
original unedited version before it is stored.
4) Parameter Buttons - The Parameter keys perform several different
functions. When the Program Title is displayed, the <UP> and
<DOWN> Parameter keys do nothing. The <RIGHT> key will move
you to the algorithm section, through the modules of the algorithm
and into the parameters of the program. The <LEFT> key moves
you in the opposite direction (see the diagram on page 12 for further
explanation). Once you have accessed the algorithm screen or
parameter screen with the <LEFT> and <RIGHT> parameter keys,
the <UP> and <DOWN> keys allow you to increase or decrease the
displayed values.
5) Effects Library Buttons - This group of buttons allows you to jump
directly to the first Parameter of Modules in the currently selected
Algorithm. The buttons in this group are: <COMP>, <DIST>, <EQ>,
<REVERB>, <DLY/SMP>, <PITCH>, <MOD>, <MIX>, and
<MORE>. Also included in this section and sharing buttons with the
<MOD>, <MIX>, and <MORE> buttons are the Function keys (indi-
cated by ¡, ™,and £) which act as menu selection keys in the Utility,
MIDI, and Naming menus.
6) Global Buttons - These buttons perform global functions. Some of
Section 1 - Startup
RP-12 Owner’s Manual

9
these functions include, Utility functions such as LCD contrast,
Pedalboard , and MIDI setups (including transmit & receive maps).
Buttons in this group are: <NAME>, <UTILITY>, and <MIDI>.
7) Main Output Level - This controls the overall output level of the
RP-12. It also controls the overall level of the headphones.
8) Continuous Control Pedal - This volume-type pedal allows real-
time control over Parameters in the RP-12.
Rear Panel Connections The RP-12 rear panel connectors and functions are as follows:
1) Input - This is the audio input to the RP-12. Plug your instrument in
here.
2) Right Output - This is the right main audio output of the RP-12.
Use both left and right outputs when Programs are set up to take
advantage of stereo effects.
3) Left/Mono Output - This is the left main audio output of the RP-12.
Use both left and right outputs when Programs are set up to take
advantage of stereo effects. Use either output when the RP-12 is
set to mono output.
4) Headphone Output - 1/4” stereo plug for headphones.
5) AC Line Input - This is the power supply receptacle.
6) MIDI In - The MIDI In port allows the RP-12 to respond to incoming
MIDI messages, including Program Change, Continuous Control,
and System Exclusive data.
7) MIDI Out / Thru - Sends out MIDI data generated by the RP-12 to
other devices. It also passes MIDI data transmitted on the RP-12’s
MIDI channel through to other devices.
INPUT RIGHT
OUTPUT LEFT/MONO OUTPUT HEADPHONES POWER
9VAC 2.2A MIDI IN MIDI OUT/THRU
1234 567
Section 1 - Startup
RP-12 Owner’s Manual

10
MIDI and Audio Setups The following diagrams show possible MIDI and audio routing setups
for the RP-12.
Basic Guitar Setup
Left
Output
Input
Right
Output
Guitar
Amp A Guitar
Amp B
Section 1 - Startup
RP-12 Owner’s Manual

11
Recording Setup (Use Cabinet Emulator)
Using external MIDI control
Left
Out Right Out
MIDI Out
MIDID In
MIDI Keyboard, Sequencer, or Computer
o Amplifier(s)
Input
Left
Out
Input
Right
Out To Multitrack and/or Studio Monitors
Mixer Inputs
Section 1 - Startup
RP-12 Owner’s Manual

12
Section 2 - Basic Operations
Program Architecture The Program’s Parameter architecture in the RP-12 has been
designed to be a linear series of items, rather than a multiple-level
menu (see diagram). In other words, instead of including several sub-
menus under a single Parameter heading, all Parameters are included
in a single level, and are accessed using the <LEFT> and <RIGHT>
Parameter keys. This makes access to specific Parameters of a
Program quick and easy, and provides a much clearer picture of exact-
ly where you are in the Program.
Linear Parameter Architecture of a Program
The diagram above shows the linear arrangement of the Parameters in
the RP-12. Notice that if you press the <RIGHT> Parameter key from
the last item in the list (the Parameter item to the left of the title
screen), the display jumps, or “wraps around to” the first item in the
Program (in this case, the title screen).
Likewise, if the <LEFT> Parameter key is pressed from the title screen,
the display will wrap to the last Parameter in the list. This wraparound
menu feature is provided so that Parameters that appear near the end
of a long list of items can be just as easily reached as items near the
beginning of the menu. If you press and hold either the <LEFT>
Parameter key or the <RIGHT> Parameter key, the RP-12 will begin
scrolling at high speed through the available Parameters.
Accessing Factory Programs
There are three methods for recalling factory Programs.
1) The first method uses the <UP> and <DOWN> Program keys. The
procedure is as follows:
• From the title screen, press the Program <UP> key. Note that the
Program shown in the display changes and the number shown in
the LED display increments by one each time the Program <UP>
key is pressed. Pressing the Program <DOWN> key causes the
opposite to occur: the RP-12 decrements through the Programs
in memory.
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Section 2 - Basic Operations
RP-12 Owner’s Manual

13
• To scroll at high speed through the Programs in memory, press
and hold either the <UP> or <DOWN> Program key.
2) The second method uses the RP-12’s pedalboard. When you
change programs using the pedalboard, any unstored modifications
you have made to a Program will be lost.
3) The third method is through the use of MIDI. This method will be
covered later in the MIDI section of this manual, pg. 58.
Tuning with the RP-12 To access the Tuner using the RP-12 pedalboard, do the following:
• Press and hold the Bank Down/Tuner switch (in the lower right
corner of the pedalboard). The display reads:
• Begin tuning your instrument. As you tune, the note name is
shown on the top line of the display, while vertical bars appear on
the second line of the display and begin strobing. If the note is
sharp, the bars will strobe from left to right. If the note is flat,
they’ll strobe from right to left. When the note is in tune, the
strobing bars will stop moving and asterisks will appear around
the note name on the top line of the display.
After a few seconds of tuner inactivity, the display returns to:
• Exit Tuning Mode by pressing any pedal or button.
TUNER A=44O
-- -- -- --
TUNER A=44O
-- -- -- --
Section 2 - Basic Operations
RP-12 Owner’s Manual

14
CHANGING THE TUNING REF You can easily change the RP-12’s tuning reference by using the
<UP/DOWN> Parameter buttons while in tuner mode. The top line of
the display will show the current setting. The default factory setting is:
A=440 Hz. The tuning reference control ranges from 427 Hz to 453
Hz, which is the equivalent of ±50 cents (1/2 semitone) in either direc-
tion from 440 Hz.
Scrolling down below 427 Hz, you can access the alternative tuning
references of: A= G#, A=G, and A=F#.
When you use any of the alternate tuning as your reference, tune your
instrument so that the display shows normal tuning (E, A, D, G, B, & E
for guitars) and the RP-12 will do the rest ( the display shows normal
tuning, but you’ll actually be tuning to the selected reference).
• Exit Tuning Mode by pressing any pedal or button.
ASSIGNING PROGRAMS TO FOOTSWITCHES
The RP-12 has a special function within it’s operating system, that
allows you a quick and painless method of assigning any one of the
256 programs in the unit, to any one of the bottom row of footswitches
(1-5). For example, you would like to store program 53 (Blue Naked),
to footswitch 1. The procedure is as follows:
• From program 53, press and hold the <Utility> function button.
The LEDs in the bottom row of footswitches will scroll along the
botton row of footswitches, and the display will appear like this:
• Select and press the desired footswitch, and assignment is
made. Now, whenever you press that footswitch, program 53 will
be recalled.
For a more in depth explanation on program assignment, please refer
to page 49 for more information.
ASSIGNING PARAMETERS TO FOOTSWITCHES
You can easily assign any effect parameter to a Continous Controller
by performing a simple linking procedure using the front panel controls
of the RP-12. For example, If you wanted to assign Footswitch 7 (CC
22) to control the Compressor On/Bypass Parameter in Program 5
(Wham & Eggs). The procedure is as follows:
• From the Program title screen, scroll to the Compressor
Select Desired
Foot Switch
TUNER A=G
-- -- -- --
Section 2 - Basic Operations
RP-12 Owner’s Manual

15
On/Bypass parameter, by either pressing the Parameter <right >
button five times, or pressing the <COMP> Effects Library Button.
Now press and hold the <MIDI> button, and the display reads:
• Press function button <Mix ™> to assign a CC, and the display
will appear like this:
• To assign CC to the parameter, press Footswitch 7, and the dis-
play will appear like this:
• At this point, the Link has been made. Press the function button
<MIDI> to exit, and then press store to save the link assignment.
For a more in depth explanation of Assignment of CCs to parameters,
please see pg. 50 for more information.
Comp On/Bypass
Link to:CC 22 ≥
Comp On/Bypass
No Link ≥
¡Link 5=NoLink
™Assign
Section 2 - Basic Operations
RP-12 Owner’s Manual

16
Section 3 - Programming
Using the Function buttons The RP-12 has three Function keys. They are located in the bottom
row of the Effects Access buttons and they share buttons with the
<MOD>, <MIX>, and <MORE> options. Each Function key is num-
bered and performs several functions in the Utility and MIDI modes
(depending on the selected menu screen). These buttons are also
used in the Program naming process (see Storing/Naming on page
19). See pg. 49 for more on the Utility Button. See pg. 58 for more on
the MIDI Button.
¡™& £are used in the display to indicate which func-
tion key to use.
More Special Characters There are several special characters that the RP-12 uses to tell you at
a glance exactly what it is doing. Some special characters in the RP-12
are in inverted type, that is, reversed out of a black background, and
they will usually appear in the upper right-hand corner of the Program
Title screen.
ßIndicates that the Cabinet Emulator is currently active.
ÇIndicates that a MIDI continuous controller is linked to the
Parameter.
å∫Characters from this group are used for distinguishing
between Modules of the same name in a single Algorithm. This is an
instance in which a special character will immediately follow the
Module name, rather than appear in the corner of the display.
* Indicates a Program has been modified.
( ) Indicates the value within the brackets is a stored or
saved value.
Section 3 - Programming
RP-12 Owner’s Manual

17
The Effects Library Buttons
The Effects Library buttons are used to jump to specific places in a
Program. For example, if a Program contains two choruses and you
want to change the delay time on only one of them, you could press
the <MOD> Effects Library button from Program Title screen and you
would jump to the first Parameter of the first chorus in the Algorithm.
Press the button again, and you are taken to the first Parameter of the
next chorus in the Algorithm.
About The I /O Module Each Program in the RP-12 is equipped with Compression, Distortion,
Clean / Distortion Level, Noise Gate, DSP Master Level, Parametric
EQ, Wet/Dry Mix, and Cabinet Emulator controls. These items are per-
manent residents of every Algorithm in the unit.
This group of items is called the Input / Output Module (or I/O Module)
because they are always a part of both the input and output audio
paths of the RP-12. The following diagram shows how the I/O Module
affects the signal as it flows through the unit.
The RP-12’s Compression, Distortion, and Clean / Distortion Level are
analog for warmth and power. The Noise Gate, DSP Master Level,
Parametric EQ, Wet/Dry Mix and Cabinet Emulator are all accom-
plished in the digital section, for absolute flexibility and precision.
Modifying Factory ProgramsAfter you’ve had time to familiarize yourself with the RP-12, you may
find that there are several factory Programs that are very close to what
you’re looking for, but need a few small tweaks to get them perfect.
Program 2 (Clean and Tight) has a chorus and delay. Let’s assume
that in order to work in your application, it needs to have a 60Hz cho-
Compression(A)
Distortion(A)
Clean/Dist Level (A)
NoiseGate(D)
DSPMasterLevel (D)
ParametricEQ(D)
CabinetEmulator(D)
Reverb
Delay/Sampler
Modulation
PitchShift
Mixers
Etc...
I/O
Module Algorithm
(DigitalSection)
ToOutputs
FromInst.
A=Analog
D=Digital
MasterMix(D)
BypassSwitch
Section 3 - Programming
RP-12 Owner’s Manual

18 rus speed. Using this Program as an example for Program modifica-
tion, the procedure for changing the Chorus Speed is as follows:
• From the Program title screen, scroll to Program 2 using the
<UP/DOWN> Program buttons. The display reads:
• Using the <RIGHT> and <LEFT> Parameter buttons, scroll to the
CHORUS SPEED Parameter.
The display reads:
NOTE: By pressing the <MOD> key you can skip directly to the
first Parameter of the Chorus effect within the Algorithm, then con-
tinue scrolling with the <RIGHT> Parameter key to the Chorus
Speed parameter.
• Using the <UP> Parameter key, scroll upward until you reach
0.60Hz. The display reads:
If you change Programs at this point (either through MIDI, the pedal-
board, or the Program buttons), any modifications that you have made
to the Program will be lost. In order for the RP-12 to remember the
changes that you have made, you must store the Program in memory.
The procedure for storing Programs is covered in more detail on pg 20.
Basic Program Creation There are three requirements for creating a Program on the RP-12.
The first is that an Algorithm needs to be assigned to the Program;
second, Parameters must be modified to your liking, and third, the
Program must be stored in memory in order to be recalled for later
use.
Selecting an Algorithm The Algorithm you choose for a Program determines the basic function
of the Program. It is therefore necessary to choose an Algorithm that
contains all the Modules you want to use in an appropriate configura-
tion (for a complete listing of the RP-12’s algorithms, see page 67).
The Algorithm selection screen for all Programs in the RP-12 is one
screen to the right of the title screen.
NOTE: It may be easiest to select a Program that uses the Algorithm
Chorus Speed
0.60Hz
Chorus Speed
(0.28Hz)
Clean and Tight
DCho≥2TDly≥2Pans
Section 3 - Programming
RP-12 Owner’s Manual