.
gr.ba/select
①
.
②
+
.
.
.
③
.
④
.
.
.
.
GF650
GF650
.
.
.
The Volume Level indicator showing maximum volume (level 10)
gr.ba/select
GF650
gr-Balance
.
.
.
gr.ba/select
-
+
The GR.BA/SELECT button
The GR.BA/SELECT button
:
gr.ba
.
.
gr-Balance light