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GTC Sound Innovations REVPAD User Manual

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Copyright © 2016 GTC Sound Designs
All rights reserved.
No part of this publication may be reproduced in any form without the written permission of GTC Sound Designs.
The product can be used to record or duplicate audio without being limited by certain technological copy-protection measures. This
is due to the fact that this product is intended to be used for the purpose of producing original music, and is therefore designed so
that material that does not infringe copyrights belonging to others (for example, your own original works) can be recorded or
duplicated freely.
Do not use this unit for purposes that could infringe on a copyright held by a third party. We assume no responsibility whatsoever
with regard to any infringements of third-party copyrights arising through your use of this unit.

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  • Page 1 Copyright © 2016 GTC Sound Designs All rights reserved. No part of this publication may be reproduced in any form without the written permission of GTC Sound Designs. The product can be used to record or duplicate audio without being limited by certain technological copy-protection measures. This is due to the fact that this product is intended to be used for the purpose of producing original music, and is therefore designed so that material that does not infringe copyrights belonging to others (for example, your own original works) can be recorded or duplicated freely.

  • Page 2: Table Of Contents

    Table of Contents Welcome to the Creative World of the GTC Sound Innovations REVPAD Important Safety Instructions Protecting From the Elements Protecting the Power System General Battery Safety Instructions Battery Replacement Instructions EMC and Certificate of Conformity viii Quick Start...
  • Page 3 The Back Panel of the REVPAD Base Unit Connecting Your REVPAD to the Outside World Getting to Know the REVPAD Touchpad Charging the REVPAD Touchpad Customizing your REVPAD Creating and Editing Patches Modifying a Patch Setting Patch Effect Parameters Mix/Touch Mix...
  • Page 4 Patch Setup Routing Pad Setup MIDI Setup Auto Setup External Control of Internal Effects System Configuration Device Utilities Pad Settings Touchpad Control Button Assignment MIDI Settings MIDI IN CC Map MIDI Control MIDI-IN MIDI-IN Program Change MIDI-IN Control Change MIDI-OUT MIDI-OUT Program Change MIDI-OUT Control Change...
  • Page 5 Clock Specifications MIDI Implementation Map...
  • Page 7 REVPAD The GTC Sound Innovations REVPAD is a sound effect controller for use with amplified instruments. It includes a sound processing base unit, which can connect to other equipment or systems. It has a Touchpad, which attaches to the guitar and communicates wirelessly with the base unit.

  • Page 8: Important Safety Instructions

    • The REVPAD does not require preventive maintenance. • Clean the REVPAD only with a dry cloth. Do not use any chemicals. • 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.

  • Page 9: Protecting From The Elements

    • The REVPAD is designed for indoor use. Do not operate the system outdoors without proper protection against mist or rain. • Do not expose the REVPAD to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the apparatus.

  • Page 10: General Battery Safety Instructions

    • See Battery Replacement Instructions on page  vi before installing or removing the battery from the REVPAD Touchpad. • All of the following are dangerous. • Do not leave, charge, or use the battery in a car or similar place where inside temperature might be over 140 ºF.
  • Page 11 Welcome to the Creative World of the GTC Sound Innovations REVPAD • Do not disassemble the battery or modify the battery design, including the electric circuit. • Do not put the battery into a microwave oven, dryer, or high-pressure container.

  • Page 12: Battery Replacement Instructions

    REVPAD User Manual Battery Replacement Instructions The REVPAD is supplied with a Li-Ion rechargeable battery. The battery does not need to be replaced unless its operating time becomes much shorter than usual. Warning! DO NOT INGEST BATTERY. CHEMICAL BURN HAZARD.
  • Page 13 Welcome to the Creative World of the GTC Sound Innovations REVPAD To replace the battery: 1. Remove the REVPAD Touchpad from the guitar. 2. Turn off the Touchpad by clicking the microswitch toward the rounded end. 3. Turn the Touchpad over and use a philips screwdriver to release the two mounting screws.

  • Page 14: Emc And Certificate Of Conformity

    REVPAD User Manual EMC and Certificate of Conformity Class B Warnings The FCC Wants You to Know 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.
  • Page 15 (SAR), field strength, or power density, whichever is most appropriate RF Exposure This device is only authorized for use in a mobile application. At least 8" of separation distance between the REVPAD and the user's body must be maintained at all times.

  • Page 17: Quick Start

    MIDI applications and much more. Before exploring how to customize the REVPAD to fit your personal way of playing, let’s see what it can do by itself. The REVPAD Touchpad The REVPAD Touchpad provides a wireless connction to the REVPAD Base Unit so you can switch and control effects with a swipe or a touch of your finger.

  • Page 18: Attaching The Touchpad

    Attaching the Touchpad The REVPAD Touchpad comes with three slim (0.6 mm) hook/loop fastener dots, which stick onto the guitar body in any location, according to your personal preference. It is easily removed if it needs to be replaced. The guitar unit attaches to the dots firmly enough to endure even the most vigorous live performance, while remaining easy to remove.
  • Page 19 2. The power LED should glow green. Note: If the power LED glows yellow or red, or does not light up at all, the battery must be recharged. See Charging the REVPAD Touchpad on page  23 for more information. 3. Remove one side of the adhesive backing of a hook/loop fastener dot.

  • Page 20: The Revpad Base Unit

    The REVPAD Base Unit It's all about preserving the natural sounds and soul of the guitar. The REVPAD is not generating sounds but processing them, so even though you can get synth-like sounds it is not a synthesizer, rather a signal-processing unit that preserves the natural sound of the instrument as well as the natural response to and feel of the guitar player's fingers.

  • Page 21: Setting Up The Revpad Base Unit

    Quick Start Setting up the REVPAD Base Unit The REVPAD Base Unit provides high-end effects, analog distortion and an overdrive circuit. While designed with foot switches, the REVPAD system displays its greatest power and flexibility through wireless communication with the Touchpad.

  • Page 22: Take The Revpad For A Spin

    REVPAD User Manual Take the REVPAD for a Spin When you power up your REVPAD Base Unit the editing screen ( ) indicates that you are in true bypass mode. To begin using your new REVPAD system: • Press any footswitch to exit true bypass mode. For example, if...

  • Page 23: Exploring Your Gtc Sound Innovations Revpad

    Exploring Your GTC Sound Innovations REVPAD The GTC Sound Innovations REVPAD is a sound effect controller for use with amplified instruments. It includes a sound processing base unit, which can connect to other equipment or systems. It has a Touchpad, which attaches to the guitar and communicates wirelessly with the base unit.

  • Page 24: Getting To Know The Revpad Base Unit

    REVPAD User Manual Getting to Know the REVPAD Base Unit The REVPAD Base Unit is used to for electronic connections, status of the system, editing patches and modifying effects. The Front Panel of the REVPAD Base Unit REVPAD Base Unit Controls...
  • Page 25 • Roller (rolls clockwise and counter-clockwise) for changing values and effects. • The Home button returns the REVPAD to the beginning of the current patch edit screen. This is useful if you lose track of your location within the patch.
  • Page 26 Current Bank Screen The REVPAD makes 200 patches available, stored in 50 banks, each of which with four patches. The Current Bank Screen shows which bank is active (01 through 50). The LEDs above the foot switches ( ) show which of the four patches in the bank, A, B, C or D, is active.

  • Page 27: Status And Mode Leds

    Exploring Your GTC Sound Innovations REVPAD Status and Mode LEDs This section describes the meaning of the LED indicators on the front panel of the REVPAD base unit. A B C E F G CLIP COMM BATT FREEZE PEDAL PATCH...
  • Page 28 Function CLIP The LED turns red to indicate when the input gain to the REVPAD is too high. Adjust the input gain of the signal until the LED is no longer red. When the Touchpad is touched, the LED lights to indicate the strength of communication between the COMM Touchpad and the base unit.
  • Page 29 Exploring Your GTC Sound Innovations REVPAD Item Function PEDAL Green LED indicates that the REVPAD is operating in SINGLE mode. See Single Mode on page  37 more information. PATCH Indicates that the REVPAD is working in PATCH FAVORITE mode. See Patch Favorite Mode on page  35...

  • Page 30: Footswitch Control And Patch Navigation

    (footswitch simultaneously) to move the REVPAD from the current bank to the next bank up, for example from 21 to 22. The selected bank number will flash. Press one of the footswitch pedals to select one of the four patches in the bank.

  • Page 31: The Back Panel Of The Revpad Base Unit

    Exploring Your GTC Sound Innovations REVPAD The Back Panel of the REVPAD Base Unit This section describes the controls and sockets on the back panel of the REVPAD base unit.
  • Page 32 RETURN (LOOP) Returns signal input for looping external gear. External effect must be on. EXPRESSION PEDAL Jack enabling the REVPAD to act as an expression out pedal. Uses a TRS cable to control. MIDI IN MIDI-IN socket to receive commands for control change, program change, and clock (tempo) changes.

  • Page 33: Connecting Your Revpad To The Outside World

    Connecting Your REVPAD to the Outside World To meet various situations and needs there are multiple ways to connect The REVPAD to other equipment. Following are some of those types of connections. Diagrams and a short description for each one can be found below.
  • Page 34 Connect the REVPAD before and after the amplifier pre-amp using combination of the Guitar REVPAD REVPAD and amp loops. You must use the LOOP effect in the REVPAD. Effects before Out-L the LOOP in the REVPAD will be processed before the amplifier pre-amp. Effect that will...

  • Page 35: Connecting Midi Devices

    MIDI-Out MIDI-Out MIDI-In MIDI Device REVPAD to Line or Mixer Line/Direct Use this configuration to connect the output of the REVPAD to one Out L Input or multiple lines or mixers. The AMP/LINE switch should be set to Guitar REVPAD LINE.

  • Page 36: Getting To Know The Revpad Touchpad

    REVPAD User Manual Getting to Know the REVPAD Touchpad The REVPAD Touchpad provides a wireless connection to the REVPAD Base Unit so you can switch and control effects with a swipe, touch or tap of your finger. Driven by the TouchFx Patented Technology engine, the REVPAD provides guitarists full, simultaneous control of multiple effects parameters, including their own existing pedal board effects.
  • Page 37 Exploring Your GTC Sound Innovations REVPAD...
  • Page 38 REVPAD User Manual Item Name Function Control Button 1 Touchpad Control Button 1. See Touchpad Control Button Assignment on page  52 for more information. Control Button 2 Touchpad Control Button 2. See Touchpad Control Button Assignment on page  52 for more information.

  • Page 39: Charging The Revpad Touchpad

    Exploring Your GTC Sound Innovations REVPAD Charging the REVPAD Touchpad The REVPAD Touchpad comes with a USB cable that connects the Touchpad to the base unit. This serves to recharge the Touchpad and enables firmware updates and the installation of additional applications.

  • Page 41: Customizing Your Revpad

    Customizing your REVPAD This section describes how to modify your REVPAD system to work exactly the way you want it to. The REVPAD System offers 200 factory and user presets to build and explore your own sounds. Building a patch is easy and intuitive: Step 1: Choose any effect you want.

  • Page 42: Creating And Editing Patches

    Creating and Editing Patches Your REVPAD comes loaded with a wide variety of patches, each with up to eight effects, which you can modify as you wish. Or you can create new ones with a variety of effects that come with the REVPAD. This tutorial describes a step-by-step procedure to create a new patch by scrolling through effects, adding them, and customizing their parameters.

  • Page 43: Modifying A Patch

    Customizing your REVPAD Modifying a Patch You may modify patches you have created or fine tune patches that came with your REVPAD. First rotate the Navigation Roller ( until the patch you want to modify appears in the editing window.

  • Page 44: Setting Patch Effect Parameters

    REVPAD User Manual Setting Patch Effect Parameters Once an effect has been added to a patch you may then review and adjust the parameters. Every effect includes up to eight parameters. Press the down arrow when the cursor is on a selected effect to enter page one of the parameter screens ( ).

  • Page 45: Mix/Touch Mix

    Customizing your REVPAD Mix/Touch Mix In each effect, the first two parameters are MIX ( ) and T-MIX ( ). MIX is always the first parameter of any effect. It adjusts the mix of the effect in the patch. It determines how much of the effect will be heard in the global patch mix.

  • Page 46: Setting X-Y Values In Effects

    Setting X-Y Values in Effects Many effects include parameters that you can control using the REVPAD Touchpad. The user can assign most of the parameters of an effect to either the X or Y axis on the Touchpad, allowing wireless control of the parameter values. The Touchpad controls the full range of values of a specific parameter.
  • Page 47 Customizing your REVPAD In this example a wahwah effect is added to a patch and its range is modified for the Touchpad. 1. First rotate the Navigation Roller ( ) until the patch you want to modify appears in the editing window.

  • Page 48: Saving A New Patch

    REVPAD User Manual Saving a New Patch When you add or modify an effect to a patch the SAVE button ( ) illuminates, indicating that changes have been made. 1. Press SAVE ( ). The current patch number flashes ( ).

  • Page 49: Organizing Your Patch List

    Organizing Your Patch List You may want to organize your patches so that the ones you use most often will be at the beginning of the list. Since the REVPAD includes blank slots for creating your own patches, you can use them to move existing patches in order to make space. This example shows how to move patch 01A to make room for a new patch created in slot 25B.

  • Page 50: True Bypass Mode

    3. Press the assigned Control Button or Control Button pair again to toggle back to the previously active patch. Normal Mode The basic way to work with your REVPAD system is in Normal mode. In Normal mode the guitarist can control effect parameters, and even make changes to them on the fly, while playing the guitar.

  • Page 51: Patch Favorite Mode

    Customizing your REVPAD Follow the procedure below to set up REVPAD system to toggle Freeze mode on and off. 1. Assign Freeze (Frz) to a Control Button or Control Button pair on the Touchpad. See Touchpad Control Button Assignment on page ...

  • Page 52: Setting Patch Favorites

    REVPAD User Manual Setting Patch Favorites You can configure your REVPAD Touchpad to provide three Patch Favorite sets so can switch from patch to patch by pressing a Touchpad Control Button (or Control Button pair) and a designated area of the Touchpad.

  • Page 53: Single Mode

    Single mode gives you the ability to toggle individual effects on the active patch off or on by pressing a Touchpad Control Button and then tapping the Touchpad. Follow the procedure below to set up REVPAD system to use Single mode. 1. Assign Single to a Control Button or Control Button pair on the Touchpad.

  • Page 54: Tap Tempo Mode

    REVPAD User Manual Tap Tempo Mode Tap Tempo mode allows you to change the tempo of the active patch. When you have set the tempo parameter of individual effects to GLOB (global), you can invoke Tap Tempo mode and change the global tempo of the patch by tapping your desired tempo on the Touchpad.
  • Page 55 Customizing your REVPAD Item Name Value Notes LVL-L 0 through 100 Level through left and right outputs. LVL-R OFF/ON See Freeze Mode on page  34 for more information. TEMPO 30 through 300 Global patch tempo. See Tempo and Global Tempo (on page  29) Tap Tempo Mode (on the previous page) for more information.
  • Page 56 REVPAD User Manual Item Name Value Notes OUT-L Select this option to send the audio chain to the Out-L or Out-R source from within any place in the audio chain. See Routing OUT-R on the facing page for a detailed explanation.

  • Page 57: Routing

    Customizing your REVPAD Routing Routing defines how the eight possible effects of the selected patch are processed. To set the routing options follow the procedure below. 1. Select a patch for setup. See Creating and Editing Patches on page  26 for more information.
  • Page 58 REVPAD User Manual COMB2: Combination Two Combination Two (COMB2) processes all p1 effects (FX1 through FX4) serially and then all p2 effects (FX5 through FX8) in parallel. COMB3: Combination Three Combination Three (COMB3) processes all p1 effects (FX1 through FX4) in parallel and then all p2 effects (FX5 through FX8) serially.

  • Page 59: Pad Setup

    Go to p3 of a selected patch editing screen to access the pad setup parameters. As the default the REVPAD touchpad axis is set for values between 0 and 100. Using the Pad setup screen you can set minimum and maximum values for the borders to other values.

  • Page 60: Midi Setup

    REVPAD User Manual Item Name Value Notes X-MIN 0 through 100 Minimum border of the x-axis X-MAX 0 through 100 Maximum border of the x-axis Y-MIN 0 through 100 Minimum border of the y-axis Y-MAX 0 through 100 Maximum border of the y-axis MIDI Setup Go to p3 of a selected patch editing screen to access the MIDI setup parameters.

  • Page 61: Auto Setup

    Go to p3 of a selected patch editing screen to access the Auto setup parameters. The Auto function simulates a finger movement on the REVPAD touchpad by pressing (touring) on the pad, and without the need to move the finger at all.
  • Page 62 REVPAD User Manual Name Value Notes T.UP Determinds the time for the movement to go from the minimum to the maximum value. HOLD1 Determines how long the simulation hods the maximum value. T.DN Determinds the time for the movement to go from the maximum to minimum value.

  • Page 63: External Control Of Internal Effects

    The RANGE, AUTO and TIME parameters are used to control the expression coming from an external device with the REVPAD. • RANGE determines the maximum range of the expression emulation that the REVPAD will send to the device. The minimum is always 0.

  • Page 65: System Configuration

    Press the SYS button to view 1.DEVICE UTILITIES. Press the right button on the Navigation roller to see the next screen (Pad Settings) or the down button to view and modify your REVPAD device utilities. Rotate the Navigation Roller to scroll through your options in each configuration field. Press the right arrow to continue to the next...
  • Page 66 REVPAD is turned on the normal mode is activated. RF CHANNEL The Touchpad is set to this RF channel. Do not change unless two REVPAD units will be operating in same area or if any other device is using the same channel. When the RF value is changed connect the the Touchpad to the base unit with the USB cable and then turn the Touchpad of and on again to reset the unit calibration.

  • Page 67: Pad Settings

    (Touchpad Control Button Assignment) or the down button to view and modify your REVPAD Touchpad settings. Rotate the Navigation Roller to scroll through your options in each configuration field. Press the right arrow to continue to the next configuration field. Press the up arrow to return to the main System Configuration Screen.

  • Page 68: Touchpad Control Button Assignment

    REVPAD User Manual Number Name Values Notes SINGLE MODE • Select Only Press the Touchpad Control Button or Control Button pair assigned to SINGLE mode and tap the Touchpad to select an effect to bypass or turn back on. The base unit displays the first six effects of the active patch.
  • Page 69 System Configuration 1. Press the down button to view and modify your REVPAD Touchpad Control Button assignments. 2. To change the present assignment for SW1 (Touchpad Control Button 1) rotate the Navigation Roller to scroll through your BUTTON|SW1 |SW2 |SW3 |SW1&2|SW1&3|SW2&3|...

  • Page 70: Midi Settings

    Navigation roller to see the previous screen (Touchpad Control Button Assignment), the right arrow button to see the next screen (MIDI IN CC Map) or the down button to view and modify your REVPAD MIDI settings.

  • Page 71: Midi In Cc Map

    (MIDI Settings) or the down button to view and modify your REVPAD MIDI-IN control change (CC) map. Use the right arrow to move through all available MIDI-IN effects. When the cursor stands on a particular effect, use the Navigation roller to select the MIDI-IN channel (0-127), turn the mapping off, or set the effect to LEARN.

  • Page 73: Midi Control

    REVPAD Base Unit. For MIDI-OUT functions connect a cable from the MIDI-OUT/Thru port ( ) in the back panel of your REVPAD Base Unit to the MIDI in port of your MIDI Device. Set up communication between your MIDI device and your REVPAD system as follows.

  • Page 74: Midi-In

    Change). MIDI-IN Program Change Setting up your REVPAD system for MIDI-IN Program Change allows you to use your MIDI device to change the active REVPAD patch. 1. Connect a cable from the MIDI-OUT port of your MIDI device to the MIDI-IN connector in the back panel of the base unit and verify that the MIDI RX channel is set to the same channel of your MIDI device.

  • Page 75: Midi-In Control Change

    Note: If you do not know the switch values in the MIDI device, set the CC Map value to LEARN and then send the CC you wish to use to effect the control change. The REVPAD system will use the received CC number.

  • Page 76: Midi-Out

    Change). MIDI-OUT Program Change Setting up your REVPAD system for MIDI-OUT Program Change allows you to use your Touchpad to send program changes to an external MIDI device. Note: Because you will be looking at the Touchpad from above when it is attached to your guitar, the illustration shows the "guitarist-eye-view."...

  • Page 77: Midi-Out Control Change

    MIDI-OUT Control Change Setting up the REVPAD MIDI-OUT Control Changes allows you to send up to six different CC values using the Touchpad to external MIDI devices. 1. Connect a cable from the MIDI-OUT/Thru connector in the back...
  • Page 78 REVPAD User Manual Note: Press the right arrow button ( ) four times to view and adjust values for CC-2, the second MIDI Control Change page. Label Values Function Notes CC_1 Off/0-127 Select MIDI-OUT CC Each MIDI channel has two control change screens.
  • Page 79 To set up Clock MIDI-IN go to the MIDI setting on p3 of the patch setup and set the clock value to SLAVE. in this way, any CLOCK from an external MIDI device received by the REVPAD will change its current patch global tempo value to the clock in the given value.

  • Page 81: Specifications

    Specifications User Interface • 2 7 segment display: Patch indicator display Base Unit: • 24*2 LCD screen: patch info, parameter values and editing pages • Navigator dial: Scrolling and editing • Save button for saving patches • System button for system configurations •...
  • Page 82 REVPAD User Manual External Interface Instrument Input Connection: ¼" Phone Jack Impedance: 1MΩ Loop (Send/Return) Connection ¼" Phone Jack • Input 200 kΩ Impedance: • Output 100 Ω Analog Outputs (L/R) Connectors: 2x ¼" Phone Jack Impedance: 100 Ω Control Interface •...
  • Page 83 Specifications Audio Specifications: Sample Rate: 44.1 kHz A to D Conversion: 24 bit D to A Conversion 24 bit True bypass Relay Wireless Communication Frequency 2.4 GHz Range Working Time (between charges) 7 hours continuous, 20 hours typical playing Environment Storage Temperature -4 °F to 158 °F Operating Temperature...
  • Page 84 REVPAD User Manual Power Requirements Base Unit: • Transformer Main Voltage: 100 to 240 VAC, 50/60 Hz • DC input: 9 VDC inputs, 2000 mA • Power consumption: < 18W Touchpad: • DC input: 5 VDC through USB connection Mechanical Specifications:...
  • Page 85 MIDI Implementation Map Function Transmitted Recognized Remarks Function Transmitted Recognized Remarks Basic Default Program Channel change Changed 1-16 1-16 True # 0-127 0-127 Mode Default System exclusive Messaged Common Song pos Altered Song sel Note number Tune True Voice System Real Clock Velocity Note ON...

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