
EFFECT
23
SEND/RETURN
You can connect an external eects processor between the SEND jack and
RETURN jack, and use it as one of the GT-100’s eects processors.
The sound that is input to SEND/RETURN within the eect chain will be
output to the SEND jack. The sound that is input via the RETURN jack will
be input to SEND/RETURN within the eect chain.
Parameter Value Explanation
SEND/
RETURN  
ON/OFF
OFF, ON Turns the SEND/RETURN on/o.
MODE
NORMAL
The input to SEND/RETURN within the eect 
chain will be output to the SEND jack, and 
the input from the RETURN jack will be 
output following SEND/RETURN.
Use this setting if you want to connect an 
external eects processor in series within the 
GT-100’s eect chain.
SEND RETURN
DIRECT MIX
The input to SEND/RETURN within the eect 
chain will be output to the SEND jack, and 
the input from the RETURN jack and the input 
to SEND/RETURN (the direct sound) will be 
mixed and output following SEND/RETURN.
Use this when you want to mix the GT-100’s 
eects sounds together with the sound with 
the external eects device applied to it.
SEND RETURN
BRANCH OUT
The input to SEND/RETURN within the eect 
chain will be output to the SEND jack. The 
input from the RETURN jack will be ignored.
For example, by placing SEND/RETURN in 
the GT-100’s eect chain in front of reverb or 
delay, this allows you to use the SEND jack as 
a dry out.
SEND
SEND LEVEL 0–200 Adjusts the volume of the output to the 
external eects device.
RETURN 
LEVEL 0–200 Adjusts the volume of the input from the 
external eects device.
NS1/NS2
This eect reduces the noise and hum picked up by guitar pickups. Since
it suppresses the noise in synchronization with the envelope of the guitar
sound (the way in which the guitar sound decays over time), it has very
little eect on the guitar sound, and does not harm the natural character
of the sound.
Parameter Value Explanation
NS ON/OFF OFF, ON Switches the noise suppressor eect on/o.
THRESH 0–100
Adjust this parameter as appropriate for the volume 
of the noise. If the noise level is high, a higher setting 
is appropriate. If the noise level is low, a lower setting 
is appropriate. Adjust this value until the decay of the 
guitar sound is as natural as possible. 
*  High settings for the threshold parameter may result 
in there being no sound when you play with your 
guitar volume turned down.
RELEASE 0–100 Adjusts the time from when the noise suppressor 
begins to function until the noise level reaches “0.”
DETECT
This controls the noise suppressor based on the volume level for 
the point specied in Detect.
INPUT Input volume from input jack.
*  Ordinarily, DETECT should be set to “INPUT.”
NS INPUT
Noise suppressor input volume.
*  When connected as illustrated below, and you want 
to prevent a spatial-type eects sound (such as a 
delay sound) from being eradicated by the NS, you 
should set DETECT to “NS INPUT.”
(Spatial-type eect)
NS1DLY
FV OUT
Volume after passing through Foot Volume.
*  If you want to use FV (Foot Volume) in place of the 
guitar’s volume control, you need to set DETECT to 
“FV OUT.”
INPUT
Foot Volume
NS1FV