KORG TouchView Trinity ProX - Manual (Page 154)

01: Delay/Reverb
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i: Spread
i: Spread Control These parameters set the width of the stereo image of the effect sound. The wid-
est image can be obtained with a value of 30. With a value of 0, the effect sound
will be output from the center.
When the Spread control = Delay, you can control the width of the stereo image
of the delay output only. In this case, the width of the reverb stereo image is set
to maximum.
When the Spread control = Reverb, you can control the width of the stereo
image of the reverb output only. In this case, the width of the delay stereo image
is set to maximum.
When the Spread control = Both, you can control the width of the stereo image
of both the delay and reverb outputs.