Technics SA-GX505 Operating Instructions Manual page 20

Adjustmen
Select
the
sound
source
and
start
its
Select the band to be adjusted.
playback at a moderate volume level.
(The center frequency level and band indication to be
(Refer to page 14.)
adjusted will flash for about 5 seconds.)
:
EQ1: 40 Hz~400 Hz to be adjusted
SS
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