Manual

OPERATION – FRONT PANEL

Tuner Reference

RH750’sdefaulttunerreferenceis440Hz–justlikeany

other tuner. However, you can select any reference frequency

between 438 and 445 Hz.

This is how you select the tuner reference frequency:

– IfRH750isswitchedon,switchitoff.

– PressandholdtheMUTEbuttonduringpowerup.

– RH750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.