Roland GT-8 Owner's Manual
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Roland GT-8 Owner's Manual

Guitar effects processor
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Owner's Manual
Thank you, and congratulations on your choice of the BOSS GT-8
Guitar Effects Processor.
Before using this unit, carefully read the sections entitled:
• USING THE UNIT SAFELY (page 2–3)
• IMPORTANT NOTES (page 4)
These sections provide important information concerning the proper
operation of the unit.
Additionally, in order to feel assured that you have gained a good grasp of
every feature provided by your new unit, Owner's manual should be read in
its entirety. The manual should be saved and kept on hand as a convenient
reference.
■ Printing Conventions in This Manual
• Text or numerals enclosed in square brackets [ ] indicate buttons.
[WRITE]
[SYSTEM]
• EXP pedal is an abbreviation of "expression pedal."
• Reference such as (p. **) indicate pages in this manual to which you can refer.
* All product names mentioned in this document are trademarks or registered
trademarks of their respective owners.
Copyright © 2004 BOSS CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written
permission of BOSS CORPORATION.
WRITE button
SYSTEM button

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Summary of Contents for Roland GT-8

  • Page 1 Owner’s Manual Thank you, and congratulations on your choice of the BOSS GT-8 Guitar Effects Processor. Before using this unit, carefully read the sections entitled: • USING THE UNIT SAFELY (page 2–3) • IMPORTANT NOTES (page 4) These sections provide important information concerning the proper operation of the unit.

  • Page 2: Using The Unit Safely

    Refer a long period of time at a high volume level, or at all servicing to your retailer, the nearest Roland a level that is uncomfortable. If you experience Service Center, or an authorized Roland any hearing loss or ringing in the ears, you should distributor, as listed on the “Information”...
  • Page 3 • Never handle the AC adaptor or its plugs with • Before using the unit in a foreign country, consult wet hands when plugging into, or unplugging with your retailer, the nearest Roland Service from, an outlet or this unit. Center, or an authorized Roland distributor, as ......................

  • Page 4: Important Notes

    • Use a cable from Roland to make the connection. If using some other • Never use benzine, thinners, alcohol or solvents of any kind, to make of connection cable, please note the following precautions.

  • Page 5: Table Of Contents

    Contents USING THE UNIT SAFELY ....2 Storing Settings by Effect (User Quick Settings)..........24 IMPORTANT NOTES ......4 Copying the PREAMP/SPEAKER Settings to Another Channel ..........25 Main Features ........8 Names of Things and What They Do ..9 Chapter 4 Introduction to Effects and Parameters ..26 Front Panel ..............
  • Page 6 Setting the Knob Functions (Knob Mode) .... 74 EXP Pedal Switch, and EXP Pedal (Assign CTL/EXP) ..56 Switching Settings with the Number Pedals ..74 Setting the Operation of the GT-8 and External Controllers (Assign Variable) ..57 Using the Digital Outs..........75 Quick Settings .............57...
  • Page 7 Map Settings (MIDI Map Select) ......84 Changing patches using bank select messages........85 Changing patch numbers on an external MIDI device from the GT-8.....85 Changing patch numbers on the GT-8 using the bank select messages sent from an external MIDI device ..86 Appendices ........87 About MIDI ...............

  • Page 8: Main Features

    The unit includes an external loop feature, which allows you to connect external effects devices. You can freely set the order in which the GT-8’s effects are connected as well as the send and return levels. The GT-8 is also equipped with an amp control jack, enabling you to use the GT-8 to switch preamp channels on the connected device.

  • Page 9: Names Of Things And What They Do

    12 13 14 15 TYPE VARIATION Button Display Switches the type variation. A variety of information about the GT-8 appears here. The left display shows the bank number. CHANNEL Button This switches between preamp Channels A and B. PATCH LEVEL Knob...
  • Page 10 Names of Things and What They Do fig.002-010 10 11 19 20 21 22 23 24 12 13 14 15 DELAY EQ (Equalizer) FEEDBACK Knob EQ ON/OFF Button Adjusts the number of times the delay is repeated. Press when changing the settings. LEVEL Knob 10.
  • Page 11 With items for which there child is capable of following all the rules essential for aren’t that many parameters, the GT-8 jumps to the last (or initial) parameter. the safe operation of the unit.

  • Page 12: Rear Panel

    Names of Things and What They Do Rear Panel fig.002-020 INPUT Jack The guitar is connected here. OUTPUT LEVEL Knob Adjusts the volume level of the output from the output and headphone jacks. OUTPUT R/L (MONO) Jacks Connect to your amp, mixer, or such device. PHONES Jack Connect headphones here.

  • Page 13: Chapter 1 Playing Sounds

    * When outputting in mono, connect the cable to the OUTPUT fig.01-030 L (MONO) jack. * Use only the specified expression pedal (Roland EV-5 or Roland FV-300L; sold separately). By connecting any other expression pedals, you risk causing malfunction and/or damage to the unit.

  • Page 14: Turning On The Power

    1. Before turning on the power, confirm the following. • Are all external devices properly connected? • Is the volume on the GT-8, your amp, and all other connected devices turned down to the minimum level? 2. Switch ON the POWER switch on the GT-8’s rear panel.

  • Page 15: Turning Off The Power

    Turning Off the Power 1. Before turning off the power, confirm the following. • Is the volume on the GT-8, your amp, and all other connected devices turned down to the minimum level? 2. Turn off the power to any external effects processors, then to the guitar amp (power amp) and other devices.

  • Page 16: Creating Your Own Favorite Tones (Patches)

    What is a Patch? How to Switch Patches (Patch Change) The GT-8 can store 340 combinations (or “sets”) of effects and parameter settings. Each of these sets is called a “patch,” Patches are switched by selecting a “bank” (1–85) and with patches organized by bank and number as shown “number”...

  • Page 17: Switching The Bank And Number

    If the Patch Does Not Switch DELAY On the GT-8, you cannot switch patches in any screen other Adjusts the number of times the delay is re- than the Play screen. Press [EXIT] to return to the Play screen FEEDBACK peated.

  • Page 18: Turning The Effect On And Off

    Turning the Effect On and Off Setting the Effects Simply (QUICK FX) The GT-8’s internal effects are switched on and off with button controls. The indicator for an effect’s ON/OFF button Each effect includes prepared sample settings called “Quick lights up when the effect is enabled.

  • Page 19: Calling Up Existing Patch Settings

    Chapter 2 Creating Your Own Favorite Tones (Patches) Calling Up Existing Patch Settings 4. Press [EXIT] to return to the Play screen. 5. If you want to save a tone with the settings you’ve Just as with the Quick Settings, you can call up and use only made, proceed as described in “Storing Patches (Patch the specific effect settings you need from the User and Preset Write)”...

  • Page 20: Making More Precise Effect Settings

    ] (or [ ]). With items for which * Use [MASTER] to set the Noise Suppressor, use ASSIGN there aren’t that many parameters, the GT-8 jumps to the [CTL/EXP] to set the Foot Volume, and use [OUTPUT last (or first) parameter.

  • Page 21: Naming Patches (Patch Name)

    Chapter 2 Creating Your Own Favorite Tones (Patches) Naming Patches (Patch Name) Each patch can be given a name (Patch Name) consisting of up to sixteen characters. You’ll probably want to take advantage of this feature by assigning names that suggest the sound you’ll obtain, or the song in which it’ll be used.

  • Page 22: Saving The Tones You Have Created

    * You can also use the procedure described in “How to Switch 4. Press [WRITE]. Patches (Patch Change)” (p. 16) to select the save destination. The GT-8 switches to the copy-destination patch, and 3. Press [WRITE]. you’re returned to the Play screen.

  • Page 23: Exchanging Patches (Patch Exchange)

    You can return (initialize) the User patches to their original standard settings. On the GT-8, you can “swap” or exchange the positions of This is convenient when you want to create a new patch from two User patches. The following explains how this is done.

  • Page 24: Initializing Patches With A Tone Similar To What You Have In Mind

    Chapter 3 Saving the Tones You Have Created Initializing Patches with a Tone 7. Press [WRITE]. The GT-8 switches to the initialized patch, and the Play Similar to What You Have in Mind screen returns to the display. * The tones stored in patches are lost once the initialization is If you already have a clear idea about the kind of sound you executed.

  • Page 25: Copying The Preamp/Speaker Settings To Another Channel

    Chapter 3 Saving the Tones You Have Created Copying the PREAMP/SPEAKER In case of Assign 1–8 (p. 57) Press ASSIGN [VARIABLE] several times in order to Settings to Another Channel select the save-source Assign Variable number you wish to save the settings. You can take the PREAMP/SPEAKER settings for one * For PREAMP/SPEAKER, the setting in currently chosen channel and copy them to another channel.

  • Page 26: Introduction To Effects And Parameters

    Chapter 4 Introduction to Effects and Parameters PREAMP/SPEAKER (Preamp/ In this chapter you will find detailed descriptions for each of the GT-8’s onboard effects, and the parameters used to Speaker Simulator) control them. COSM technology plays an indispensable role in simulating The sound being input to each effect is called the “direct...

  • Page 27: Chapter 4 Introduction To Effects And Parameters

    Chapter 4 Introduction to Effects and Parameters Parameter/ Parameter/ Explanation Explanation Range Range Type *1 This is an optimal speaker cabinet for a large 4X10” enclosed amp with four 10-inch speakers. refer to Type List This sets the type of the guitar preamp. This is an optimal speaker cabinet for a large Gain *1 4X12”...
  • Page 28 Models the sound of the Channel 1 CLEAN JC CLEAN R-FIER Cln Mode on the MESA/Boogie DUAL Rectifi- JC-120 This is the sound of the Roland JC-120. Models the sound of the Channel 2 RAW Warm Clean This gives a mellow, clean sound. R-FIER Raw...

  • Page 29: Overdrive/Distortion

    Chapter 4 Introduction to Effects and Parameters OVERDRIVE/DISTORTION Type Explanation CLASSIC This effect distorts the sound to create long sustain. This models a Proco RAT. It provides 30 types of distortion and three different custom GUV DS This models an Marshall GUV’ NOR. settings.

  • Page 30: Delay

    Chapter 4 Introduction to Effects and Parameters DELAY Parameter/ Explanation Range Warp This effect adds delayed sound to the direct sound, giving This simultaneously controls the delay sound’s feedback level and more body to the sound or creating special effects. volume to produce a totally unreal delay.

  • Page 31: Using The Hold (Hold Delay)

    Chapter 4 Introduction to Effects and Parameters *1 Setting available when Type is set to Dual Series, Dual Parameter/ Explanation Parallel, or Dual L/R. Range Delay1 HiCut (Delay 1 High Cut Filter) *1 *2 Setting available when Type is set to Warp. *3 Setting available when Type is set to Modulate.

  • Page 32: Chorus

    Switch, and EXP Pedal (Assign CTL/EXP)” (p. 56) output. • “Setting the Operation of the GT-8 and External By setting a longer pre delay time, you can obtain an effect that Controllers (Assign Variable)” (p. 57) sounds like more than one sound is being played at the same time (doubling effect).

  • Page 33: Reverb

    Chapter 4 Introduction to Effects and Parameters REVERB COMP (Compressor) This effect adds reverberation to the sound. This is an effect that produces a long sustain by evening out the volume level of the input signal. You can switch it to a Parameter/ “limiter”...

  • Page 34: Wah

    Chapter 4 Introduction to Effects and Parameters FX-1/FX-2 “Wah” lets you use an EXP pedal or the like to obtain real- With FX-1 and FX-2, you can select the effect to be used from time control of the wah effect. the following.

  • Page 35: Acs (Advanced Compressor)

    Chapter 4 Introduction to Effects and Parameters ACS (Advanced Compressor) LM (Limiter) This is an effect that produces a long sustain by evening out The limiter attenuates loud input levels to prevent distortion. the volume level of the input signal. You can also use it as a Parameter/ “limiter”...

  • Page 36: Aw (Auto Wah)

    Chapter 4 Introduction to Effects and Parameters TM (Tone Modify) Parameter/ Explanation Range This changes the tone of the connected guitar. Frequency Adjusts the center frequency of the Wah ef- Parameter/ 0–100 fect. Explanation Range Peak Type Adjusts the way in which the wah effect ap- see below Selects the type of tone modification.

  • Page 37: Tr (Tremolo)

    Chapter 4 Introduction to Effects and Parameters PH (Phaser) Parameter/ Explanation Range By adding varied-phase portions to the direct sound, the phaser effect gives a whooshing, swirling character to the Adjusts the tone for the low frequency -50–+50 sound. range. High Parameter/ Explanation...

  • Page 38: Fl (Flanger)

    Chapter 4 Introduction to Effects and Parameters FL (Flanger) The flanging effect gives a twisting, jet-airplane-like With the volume level of the left and right sides alternately character to the sound. changing, when playing sound in stereo, you can get an effect that makes the guitar sound appear to fly back and Parameter/ forth between the speakers.

  • Page 39: Uv (Uni-V)

    Chapter 4 Introduction to Effects and Parameters UV (Uni-V) SG (Slow Gear) Although this resembles a phaser effect, it also provides a This produces a volume-swell effect (“violin-like” sound). unique undulation that you can’t get with a regular phaser. Parameter/ Explanation Range Parameter/...

  • Page 40: Str (Sitar Simulator)

    Chapter 4 Introduction to Effects and Parameters STR (Sitar Simulator) FB (Feedbacker) This simulates the sound of the sitar. This allows you to use feedback playing techniques. * Note that the notes you want to apply feedback to must be Parameter/ played singly and cleanly.

  • Page 41: Afb (Anti-Feedback)

    Chapter 4 Introduction to Effects and Parameters AFB (Anti-feedback) Parameter/ Explanation Range This prevents the acoustic feedback that can be produced by * When set to BPM, the value of each parameter will be set according to the body resonances of a guitar. the value of the Master BPM (p.

  • Page 42: Wsy (Wave Synth)

    Chapter 4 Introduction to Effects and Parameters WSY (Wave Synth) SEQ (Sub Equalizer) This is a synth sound that processes the guitar input signal. This adjusts the tone as a sub equalizer. A parametric type is adopted for the high-middle and low-middle range. Parameter/ Explanation Range...

  • Page 43: Fx-2

    Chapter 4 Introduction to Effects and Parameters FX-2 Parameter/ Explanation Range Pre Delay *1 You can use the following effects in FX-2 in addition to whatever effect is shared by FX-1 and FX-2. Adjusts the time from when the direct 0 ms–300 ms, sound is heard until the harmonist sounds are heard.

  • Page 44: Creating Harmonist Scales (User Scale)

    Sets the note name of the input sound. You can also play -50–+50 Make fine adjustments to the pitch shift. individual notes on the guitar and let the GT-8 interpret The amount of the change in the Fine “100” is equivalent to that of the note name.

  • Page 45: Pb (Pedal Bend)

    Chapter 4 Introduction to Effects and Parameters PB (Pedal Bend) RT (Rotary) This lets you use the pedal to get a pitch bend effect. This produces an effect like the sound of a rotary speaker. The EXP pedal automatically switches to the pedal bend Parameter/ function when PB is selected.

  • Page 46: 2Ce (2 X 2 Chorus)

    Chapter 4 Introduction to Effects and Parameters 2CE (2 x 2 Chorus) AR (Auto Riff) Two separate stereo chorus units are used for the low- This allows you to automatically produce a phrase simply by frequency and high-frequency ranges in order to create a picking a single note.

  • Page 47: Creating Original Phrases (User Phrase)

    Sets the note name of the input sound. You can also play tar sound, then send the square waveform ( ) from the inter- individual notes on the guitar and let the GT-8 judge the nal sound generator. note name.

  • Page 48: Ac (Acoustic Processor)

    Chapter 4 Introduction to Effects and Parameters Parameter/ Parameter/ Explanation Explanation Range Range PWM Depth (Pulse Width Modulation Depth) *2 Synth Level 0–100 Adjusts the depth of the PWM. Adjusts the volume of the synthesizer 0–100 sound. When it is set to “0,” no PWM effect is obtained. Direct Level Cutoff Frequency 0–100...

  • Page 49: Sh (Sound Hold)

    Chapter 4 Introduction to Effects and Parameters SH (Sound Hold) EQ (Equalizer) You can have sound played on the guitar be held Adjusts the tonal quality. A parametric type equalizer is used continuously. This effect allows you to perform the melody for the upper and lower midrange.

  • Page 50: Loop (External Effects Loop)

    This allows you to connect an external effects device to the By connecting your guitar amp’s channel switching jack to SEND and RETURN jacks and use it as part of the GT-8’s the GT-8’s AMP CONTROL jack, you can then use [AMP effects.

  • Page 51: Master

    Chapter 4 Introduction to Effects and Parameters MASTER Master BPM The following parameters can be set with MASTER. Parameter/ Explanation Range • NS (Noise Suppressor) Master BPM • Patch Level 40–250 Adjust the BPM value for each patch. • Master BPM * BPM (beats per minute) indicates the number of quarter note beats that occur each minute.

  • Page 52: Fx Chain (Effect Chain)

    This setting is used for controlling multiple effects with the CTL pedal and EXP pedal or when controlling effects using MIDI messages or other external messages. For more detailed information, refer to “Setting the Operation of the GT-8 and External Controllers (Assign Variable)” (p. 57).

  • Page 53: Using Pedals To Control The Effects

    “Setting the Operation of the CTL Pedal, EXP Pedal Switch, devices, or other gear connected to the GT-8. and EXP Pedal (Assign CTL/EXP)” (p. 56) On top of all this, the GT-8 features an “internal pedal system,” which lets you produce effects including automatic Setting GT-8 and External Controller...

  • Page 54: Setting The Operation Of The Ctl Pedal (Ctl Pedal Function)

    Used for tap input of the delay time. This applies the functions of the CTL pedal and EXP pedal Controls the Start/Stop of external MIDI de- MIDI Start/Stop switch globally to the GT-8. vices (such as sequencers). fig.05-009 Controls the Play/Stop of external MIDI de- MMC Play/Stop vices (such as hard disk recorders).

  • Page 55: Setting The Operation Of External Foot Switches (Sub Ctl 1, 2 Function)

    * When two foot switches are connected using the special PCS- Chorus On/Off Switches the CHORUS on and off. 31 connector cable (manufactured by Roland; optional), the Reverb On/Off Switches the REVERB on and off. foot switch connected to the white-ringed plug functions as Amp Ctl On/Off Switches the AMP CTL on and off.

  • Page 56: Setting The Operation Of An External Exp Pedal (Sub Exp Pedal Function)

    Chapter 5 Using Pedals to Control the Effects Setting the Operation of an External Setting the Operation of the CTL Pedal, EXP EXP Pedal (Sub EXP Pedal Function) Pedal Switch, and EXP Pedal (Assign CTL/EXP) This sets the function of the external expression pedal (such Set the functions of the CTL pedal, EXP pedal switch, and as an EV-5) connected to the SUB EXP PEDAL/SUB CTL1,2 EXP pedal with “Assign CTL/EXP.”...

  • Page 57: Setting The Operation Of The Gt-8 And External Controllers (Assign Variable)

    External Controllers (Assign Variable) Switches the OVERDRIVE/DISTORTION OD/DS On/Off on and off. This sets the functions of the GT-8’s controllers (the CTL and Preamp On/Off Switches the PREAMP/SPEAKER on and off. EXP pedal and the EXP pedal switch) and external EQ On/Off Switches the EQ on and off.

  • Page 58: Manual Settings

    Chapter 5 Using Pedals to Control the Effects Manual Settings 2. Press PARAMETER [ ] to select one of the Assigns from Assign 1–8. Here, you can individually determine which controller is to The Quick Settings selection screen appears in the display. control which parameter.
  • Page 59 The value of the parameter selected as the target changes within the range defined by “Min” and “Max,” as set on the GT-8. When using an external foot switch, or other controller that This sets the targeted operation. Possible assignments for the acts as an on/off switch, “Min”...
  • Page 60 Chapter 5 Using Pedals to Control the Effects When controlling the On/Off target with the Setting Assign Input Sens EXP pedal: * This determines the global settings for Assign 1–8. fig.05-150 1. Press PARAMETER [ ] so that “Assign Input Sens” is displayed.

  • Page 61: Internal Pedal System

    This is activated when the CTL pedal on the GT-8 is depressed. certain settings, the value may not change. EXP SW This is activated when the EXP pedal switch on the GT-8 is turned SUB EXP PEDAL This is activated when the EXP pedal connected to the SUB EXP PEDAL/SUB CTL 1, 2 jack is depressed.
  • Page 62 Chapter 5 Using Pedals to Control the Effects Wave Pedal Parameter/ Explanation Range This changes the parameter selected as a target in a certain MIDI CC#1–31,64–95 cycle with the assumed EXP pedal. When you have set This is activated when the value of the Control Change messages “Wave Pedal”...

  • Page 63: Creating Original Effects Types (Customize)

    Chapter 6 Creating Original Effects Types (Customize) With the GT-8’s Customize function, you can rely on your Parameter/ own sensibilities and create a totally new effect by tweaking Explanation Range the settings for the “Preamp/Speaker Simulator,” Type “Overdrive/Distortion,” and “Pedal Wah.” The result can fig.06-020d...

  • Page 64: Customizing The Speakers

    Chapter 6 Creating Original Effects Types (Customize) Parameter/ Explanation Parameter/ Range Explanation Range Preamp High Speaker Size fig.06-026d fig.06-040d Adjusts the preamp section’s high-frequen- -50–+50 5”–15” Selects the size of speaker. cy tone. Color Low fig.06-044d Customizing the Speakers You can make two different sets of settings, Custom 1 and Custom 2.

  • Page 65: Customizing Overdrive/Distortion

    Chapter 6 Creating Original Effects Types (Customize) Customizing Parameter/ Overdrive/Distortion Explanation Range Type You can make three different sets of settings, Custom 1, fig.06-060d Custom 2, and Custom 3. * The sound of any patch that uses Custom 1, 2, or 3 will be altered if the custom settings are edited.

  • Page 66: Customizing Pedal Wah

    Chapter 6 Creating Original Effects Types (Customize) Customizing Pedal Wah Parameter/ Explanation Range You can make three different sets of settings, Custom 1, Type Custom 2, and Custom 3. fig.06-080d The sound of any patch that uses Custom 1, 2, or 3 will be altered if the custom settings are edited.

  • Page 67: Chapter 7 Other Features

    As the guitar volume changes during the performance, Dynamic Sens is adjusted in response to the volume The GT-8 includes a function to control effect parameters when the preamps are switched. with the guitar dynamics as the instrument is played. This is 5.

  • Page 68: Adjusting The Overall Sound To Match The Usage Environment (Global)

    5. Rotate the PATCH/VALUE dial to select “Input Level.” fig.07-0561d the Usage Environment (Global) The GT-8 includes a feature that allows you to change the overall tone temporarily. This is called the “Global function.” 6. Press PARAMETER [ ] to display “Input With the Global function, you can temporarily change your Sens.”...

  • Page 69: Global Eq

    Chapter 7 Other Features Global EQ Total REVERB This adjusts the tone regardless of the equalizer on/off This has no effect on patches in which reverb is turned off. settings of individual patches. Parameter/ Explanation Range Parameter/ Explanation Rev Level Range Low EQ fig.07-046d...

  • Page 70: Adjusting The Display Contrast (Lcd Contrast)

    Contrast (LCD Contrast) the Guitar Being Used Depending on where the GT-8 is placed, the display (on the The GT-8 includes a function used for adjusting the tone to right) may become difficult to read. If this occurs, adjust the match the connected guitar.

  • Page 71: Keeping Effect Sounds Playing After Patches Are Switched (Patch Change Mode)

    All Patches (Preamp Mode) The GT-8 features a mode that is enabled when spatial effects With the GT-8, you can have a preamp be set globally for use (such as reverb and delay) are used, whereby the effects in all patches.

  • Page 72: Limiting The Banks That Can Be Switched (Bank Extent)

    By setting an upper limit to the banks, thus limiting the range This sets the timing with which the GT-8 switches to the next of banks that can be switched, you can set the GT-8 so that patch when switching patches with the pedals.

  • Page 73: Changing The Exp Pedal Mode When Patches Are Switched (Exp Pedal Hold)

    If the expression pedal is operated, and that information is transmitted to the GT-8, the volume will change in accord with the pedal’s movement. 3. Press [EXIT] to return to the Play screen.

  • Page 74: Setting The Knob Functions (Knob Mode)

    (Knob Mode) Number Pedals This sets the way the values of settings are changed when the The GT-8 includes a function that allows you to turn the control knobs are turned. tuner on and off, switch preamp channels, and perform other fig.07-201...

  • Page 75: Using The Digital Outs

    * You can check the level of signals being input to the INPUT jack by selecting “Input.” Selecting “Output” allows you to check the level of signals output from the GT-8. * You may not be able to achieve the effects you envision if your output levels are set too high.

  • Page 76: Tuning The Guitar

    Chapter 7 Other Features Tuning the Guitar How to Tune When the Tuner is turned on, sounds input to the GT-8 are 1. Play a single open note on the string being tuned. output directly as is (bypassed), and the tuner is activated.
  • Page 77 Mute Sounds are muted, and no sound is output. Bypass Sounds input to the GT-8 bypass the processing and are output di- rectly as is. When this is set to “Bypass,” and Tuner is set to ON, you can adjust the volume of the direct sound by operating the expression pedal.

  • Page 78: Turning The Effects On And Off With The Pedals (Manual Mode)

    On and Off With the Pedals with the Pedals (Manual Mode) fig.07-020 The GT-8 features a Manual mode, in which the pedals are used for switching specified effects on and off. In Manual mode, you can switch effects on and off without changing the patch number.

  • Page 79: Using The Gt-8 With External Midi Devices Connected

    MIDI device, its patches are simultaneously connected devices match. If the MIDI channel settings are not switched. correct, the GT-8 will be unable to exchange data with other MIDI devices. You can set up the correspondence between MIDI Program Operating From the GT-8 Change messages and the GT-8’s patches using the Program...

  • Page 80: Making The Settings For Midi Functions

    Explanation Range Functions MIDI TX Channel (MIDI Transmit Channel) fig.08-050d Here is a description of the GT-8’s MIDI functions. Set them as needed, depending on the intended use. fig.08-021 This sets the MIDI Transmit channel used 1–16, Rx for transmitting MIDI messages.

  • Page 81: Transmitting And Receiving Midi Data

    Explanation Range MIDI Data * On the GT-8, Bank Select messages are output simultaneously with Program Change messages. For more details, reefer to p. 85. On the GT-8, you can use Exclusive messages to provide MIDI EXP OUT (MIDI EXP Pedal Out) another GT-8 with identical settings, and save effect settings fig.08-090d...

  • Page 82: Receiving Data

    Making the Connections MIDI IN When Receiving Data Saved on a MIDI Sequencer Connect as shown below. Set the GT-8’s Device ID to the MIDI OUT same number that was used when the data was transmitted to the MIDI sequencer.

  • Page 83: Setting The Program Change Map

    Program Change messages 2. Transmit the data from the external MIDI device. received by the GT-8 and the patches to be switched to in the The following appears in the display when the GT-8 “Program Change Map.”...

  • Page 84: Enabling/Disabling The Program Change Map Settings (Midi Map Select)

    Chapter 8 Using the GT-8 with External MIDI Devices Connected 5. Repeat Step 4 as needed, setting patch numbers to their corresponding Program numbers, until the Program Change Map is completed. 6. Press [EXIT] to return to the Play screen.

  • Page 85: Changing Patches Using Bank Select Messages

    Changing patch numbers on an external MIDI device from the GT-8 When a patch is selected on the GT-8, the bank select and program change messages sent from the GT-8 correspond with each other as shown below.

  • Page 86: Changing Patch Numbers On The Gt-8 Using The Bank Select Messages Sent From An External Midi Device

    MIDI device To change patch numbers on the GT-8 using bank select messages sent from an external MIDI device, check how the external bank select and program change messages correspond with the patch numbers on the GT-8.

  • Page 87: Appendices

    MIDI IN. aspect of the sound will be affected by control change * The GT-8 features both “MIDI IN” and “MIDI OUT” connectors. messages of a given controller number. The specified parameters can be controlled with the GT-8.

  • Page 88: About The Midi Implementation

    ● The memory backup battery inside the GT-8 has run exchange. Since the charts are always of a uniform size, you down. (This message will appear when the power is can simply place the two charts side by side.

  • Page 89: Troubleshooting

    ❍ Is something other than the Play screen shown in the display? No sound/volume too low → On the GT-8, patches can be selected only when the Play ❍ Are the connection cables broken? screen is displayed. Press [EXIT] to return to the Play →...

  • Page 90: Troubleshooting Other Problems

    Settings (Factory Reset) Parameters specified with pedal assign can’t be controlled Restoring the GT-8 to the settings made at the factory is referred to as “Factory Reset.” ❍ Could the effect be switched off? Not only can you return all of the settings to the values in →...

  • Page 91: List Of Factory Settings

    List of Factory Settings Adjusting the EXP Pedal Parameter Value Although the GT-8’s EXP pedal has been set for optimum TUNER operation at the factory, extended use and the operating environment can result in the pedal going out of adjustment.

  • Page 92: Midi Implementation Chart

    A separate publication titled “MIDI Implementation” is also available. It provides complete details concerning the way MIDI has been implemented on this unit. If you should require this publication (such as when you intend to carry out byte-level programming), please contact the nearest Roland Service Center or authorized Roland distributor.

  • Page 93: Specifications

    Appendices Specifications CHANNEL button SOLO button SPEAKER button GT-8: Guitar Effects Processor (OVERDRIVE/DISTORTION) TYPE knob AD Conversion DRIVE knob 24 bit + AF method LEVEL knob DA Conversion On/Off button 24 bit TYPE VARIATION button (DELAY) Sampling Frequency FEEDBACK knob 44.1 kHz...

  • Page 94: Power Supply

    16 characters, 2 lines (backlit LCD) 2 characters, 7 segment LED AF Method (Adaptive Focus method) Connectors This is a proprietary method from Roland & BOSS that INPUT jack vastly improves the signal-to-noise (S/N) ratio of the A/ OUTPUT jacks L (MONO)/R D and D/A converters.

  • Page 95: Patch List

    Patch List ■ User Patch Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type U 1-1 HiGAIN STACK Single (Ch.A) MS HiGain Drive Stack U 1-2 MS1959 LEAD Single (Ch.A) MS1959(I) MS HiGain U 1-3 STACK CRUNCH Single (Ch.A) StackCrunch MS HiGain U 1-4...
  • Page 96 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type U11-1 BOTTOM COMBO DRV Warm OD Single (Ch.A) MATCH Drive Fat MATCH U11-2 FAT COMP LEAD Single (Ch.A) StackCrunch Tweed U11-3 BLUES LEAD T-Scream Single (Ch.A) Tweed StackCrunch U11-4 BIG HALL CLEAN Single (Ch.A)
  • Page 97 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type U21-1 WEST COAST DRIVE Booster Single (Ch.A) Blues Tweed U21-2 MILD LEAD Single (Ch.A) Mild Drive SmoothDrive U21-3 VO DRIVE+LIMITER Single (Ch.A) VO Drive VO Drive U21-4 JAZZ COMBO Single (Ch.A) Jazz Combo Warm Clean...
  • Page 98 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type U31-1 STEREO MODERN Dual L/R R-FIER Mdn1 R-FIER Mdn2 U31-2 DYNA LEAD/CLEAN Dynamic StackCrunch MS HiGain U31-3 LIQUID CRUNCH '60s FUZZ Single (Ch.B) MATCH Lead JC-120 U31-4 FUNKY FREAK Single (Ch.A) Clean TWIN Clean TWIN...

  • Page 99: Preset Patch

    Patch List ■ Preset Patch Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type P36-1 HiGAIN STACK Single (Ch.A) MS HiGain Drive Stack P36-2 HEAVY METAL DRV Single (Ch.A) R-FIER Vnt1 R-FIER Mdn1 P36-3 OD-1 + MS1959 OD-1 Single (Ch.A) MS1959(I) MS1959(I) P36-4...
  • Page 100 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type P49-1 MILD 1959 Single (Ch.B) Warm Clean MS1959(II) P49-2 DOUBLE AMP Dual L/R Clean TWIN MS1959(II) P49-3 5150/1959 DUAL Dual L/R 5150 Drive MS1959(I+II) P49-4 DUAL DRY 1959 Dual Mono MS HiGain MS1959(I+II)
  • Page 101 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type P62-1 MILD CRUNCH Single (Ch.A) Warm Crunch Crunch P62-2 COMP TWEED Single (Ch.A) Tweed Pro Crunch P62-3 BLUES LEAD T-Scream Single (Ch.A) Tweed StackCrunch P62-4 BRIGHT CRUNCH Single (Ch.B) StackCrunch Tweed P63-1...
  • Page 102 Patch List Patch Name OD/DS Type PRE Ch.Mode Ch.A Type Ch.B Type P75-1 CLEAN DLY CHORUS Single (Ch.A) Clean TWIN JC-120 P75-2 CLEAN / CRUNCH Dual L/R Warm Clean Warm Crunch P75-3 WET JAZZ Single (Ch.A) Jazz Combo Warm Clean PIEZO →...

  • Page 103: Index

    Index Numerics Connection ..............13 Contrast ................70 2 x 2 Chorus ..............46 Control Change ..........79, 85, 87 2CE .................. 46 Copy ................22 COSM ................8 CTL .................. 11 AC ..................48 CTL Pedal ..............54, 79 AC Adaptor ..............
  • Page 104 Index FEEDBACK .............. 10, 17 LOOP ................. 10, 50 Feedbacker ..............40 FL ..................38 Flanger ................38 MANUAL ..............11, 78 Foot Switch ............... 14, 59 Manual Mode ..............78 Foot Volume ............. 20, 51 Manual Setting ............... 58 Fretless Guitar ..............
  • Page 105 Index Patch Change ..............16 Patch Change Mode ............71 SDD ................. 49 Patch Copy ..............22 SEND ................. 12, 50 Patch Exchange .............. 23 SEQ .................. 42 PATCH LEVEL ............ 9, 17, 51 SG ..................39 Patch Name .............. 21, 52 SH ..................
  • Page 106 Index Uni-V ................39 User Bank ............... 16 User Patch ............16, 22–23 User Phrase ..............47 User Quick Setting ............24 User Scale ............... 44 UV ..................39 VARIABLE ........... 11, 52, 58, 67 VB ..................38 Vibrato ................38 Volume ................
  • Page 107 For the U.K. IMPORTANT: THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE. BLUE: NEUTRAL BROWN: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
  • Page 108 G6047002R3 ‘04-10-1...

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