Operating instructions

10
the GUITAR or BASS TYPE. Select TYPE GTR12F or BASS 12F to tune your
instrument to the twelfth fret. After you choose what "type" of instrument, the Reference
frequency (Refrnc) parameter defaults to the appropriate Guitar or Bass tuning
frequencies. The strings start low and go high. The frequency A 440 is included for
tuning keyboards, or checking the intonation of your neck. When you select Refrnc to
equal Off, it allows you to access the preset and display the preset number instead of [- - -
]. The Tuner at this point is inactive, you must change the Refrnc parameter to a string
value to
activate the Tuner. When you set the Refrnc parameter to Auto, tuning is simplified even
more. Auto enables the SGX NIGHTBASS SE to know which string you are trying to
tune and automatically switch the Reference parameter to the correct string/frequency.
The Auto range has a frequency window of 2.5 half steps.
Detune will let you change the reference frequency A 440 plus or minus 2 half steps. This
allows you to detune up to 50Hz. As a rule of thumb 4 cents, displayed as [0.04] equals
1Hz. So, to detune A440 to A435 you would set the Detune parameter to [-0.20]. To
detune a full half step, set the Detune parameter to = [1.00] (plus or minus). Level sets the
signal output level of the Tuner in a preset.
TUNER NOTES:
1) If you do not wish anyone to hear you tune up when you realize you're out of tune, set
the Tuner Level and the ANFX level of the Mix to [0%] in the preset.
2) If you want signal to pass through the tuner, set the Tuner Level and the ANFX Level
to the desired output level. The tuner is designed to respond to open string tuning only, no
harmonics. For best results, tune your guitar in the position you will be playing in.
Plucking the string at or near the 12th fret will help the tuner lock on to the signal.
3) Accuracy of the SGX NIGHTBASS SE Tuner is better than .5 cents!
4) 100 cents = 1 semitone = 1 half step.
Select presets 21 and 22 in Bank "A" 12th FRET TUNER and TUNERTONE for quick
tuning while on stage. These presets are set up to auto detect which string you are playing
and display the tuning scale on the front panel.