Roland GP-100 Owner's Manual page 47

Section3 Effect Guide
Volume
Adjusts the volume and distortion of the amp.
Bass
Adjusts the tone for the low frequency range.
Middle
Adjusts the tone for the middle frequency range.
* Ifyou have selected "Match Drive" as the type, the Middle control will
have no effect.
Treble
Adjusts the tone for the high frequency range.
Presence
Adjusts the tone for the ultra high frequency range.
* [f you have selected "Match Drive" as the type, raising Presence will
cut the high range (the value will change from ^0" to ^-100^).
Master
Adjusts the volume of the entire preamp.
Bright
When Bright is switched on, the sound will be sharper and clearer.
* Depending on the Type setting, this may not be displayed.
Gain
Adjusts the distortion of the amp. Distortion will successively
increase for settings of "Low," "Middle" and "High."
* Normally you should leave this set to "Middle."
* The tone of each Type has been created with a setting of "Middle" in
mind.
Reverb
This simulates the sound that reaches the listener after being
reflected from many surfaces (late reverberation).
Mode
Selection for the type of reverb.
Room 1: Aconventional room reverb.
Room 2: А room reverb with a softer tone than "Room 1."
Hall 1: А conventional hall reverb.
Hall 2: А hall reverb with a softer tone than "Hall 1."
Plate: A simulation of a plate reverb device.
Reverb Time
Adjusts the length (time) of reverberation.
Pre Delay
Adjusts the time unti! the reverb sound appears.
High Pass Filter
Adjusts the frequency at which the high pass filter will take effect.
When "Thru" is selected, the high pass filter will have no effect.
Low Pass Filter
Adjusts the frequency at which the low pass filter will take effect.
When "Thru" is selected, the low pass filter will have no effect.
Direct Level
Adjusts the volume of the direct sound.
* When the reverb is output in parallel, the Direct Level setting will be
*0" and the parameter will not be displayed.
Effect Level
Adjusts the volume of the reverb sound.
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