3 EN | OP-PRO Studio
6. EXPRESSOR:
Simultaneously controls the mix of the exciter and sets the threshold of the compres-
sor/limiter. This silder allows the player to set the playing level where the compressor/
limiter circuit engages. Once set, when the player increases playing level above this
selected level, the output of the preamp output increases is only a fraction of the
playing level change. This feature allows the performer a greater dynamic playing
reange without negative effects on the performance mix or creating headroom issues
for mixers or amps. Once the threshold setting of this control is established, the Drive
control can be set to achieve the desired harmonic enhancement appropriate with the
established compressor/limiter setting.
7. TUNE:
Activates the built-in tuner function. Pressing this switch once mutes the output of
your guitar and turn on the automatic tuner referenced to A440Hz. If you need to
tune to some other reference, like an out-of-tune piano, tune one of your strings to
the corresponding note on the other instrument. While that note sustains on your
guitar, press the tune button a second time. Tuning is now referenced to the other
instrument. Simply tune the remaining strings as usual. To conserve battery power,
the tuner atuomatically deactivate after two minutes, returning to the default A440.
Holding down the tune button for about 2seconds will turn off the muting feature and
tuner at any time.
The tuner is fully functional without plugging in (battery must be installed).
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