TC Electronic ComboStaccato - Manual (Page 14)

– The RH450 now powers up in Tuner reference mode, which
is illustrated by an “R” in the Display (see illustration below).
Tune Reference mode
– Dial the BASS tone control to alter the tuner reference. The
center position equals 440 Hz, and each LED represents
one Hertz. So to set the tuner reference frequency e.g. to
438 Hz, turn the BASS knob counter-clockwise until the
second LED on the left lights up.
– Press the MUTE button to exit Tuner Reference mode.
Please note that the tuner’s reference frequency is
remembered even after powering the unit off.
OPERATION – FRONT PANEL
12