PreSonus Acousti-Q - Manual (Page 11)

CONTROLS & OPERATION 2
twelve dB. The resulting sound from overly reducing the low frequencies of
the instrument’s signal can be very thin and harsh. Incremental adjustments
while listening to the effect the adjustments are having on the sound of the
instrument will yield the best results.
2.1.4 MASTER
The Master section of the ACOUSTI-Q contains a Mute
switch and a dual concentric control with the inner
knob labeled LEVEL and the outer knob labeled CUT/
BOOST FOOTSWITCH. The Mute switch turns off the
signal at the Main (XLR) balanced output while allow-
ing the signal to remain at the Amp/Tuner -20dB 1⁄4”
output. This feature lets the performer tune his/her instrument silently if a tuner
has been connected to the Amp/Tuner output provided without sending a signal
to the Main output. The Mute function may be engaged by pressing the Mute
switch located on the front panel to the ON position or by engaging this function
by way of the optional footswitch. The dual concentric control of the Master
section is used to set the output level of the ACOUSTI-Q. The inner knob adjusts
the output Level of the unit’s Main output. The Level control adjusts from 80
(fully counter clockwise) to +20 (completely clockwise) which is the loudest
position. Unity (zero) occurs at the twelve o’clock position. The outer knob
is labeled Cut/Boost Footswitch and adjusts from 12 (rotated fully counter
clockwise) to +12 (completely clockwise) at the loudest boost position. Once
again zero is at the twelve o’clock position with no boost or cut applied to
the signal at this adjustment. This feature is only available when the optional
footswitch is used with the ACOUSTI-Q. The purpose of this feature is to allow
the signal to be raised or lowered instantaneously. This lets the performer
increase the output of his instrument for a solo by using the optional footswitch
without the need of using a hand to turn a knob or being at the mercy of a
sound man who might miss a cue and fail to bring up the level of the instrument
so the solo passage can really stand out.
2.1.5 METERING
The ACOUSTI-Q is equipped with LED’s for observing different functions:
Power
A red LED indicator labeled POWER is located at the top of the front panel above
the input level controls. This LED is lighted when power is supplied to the unit
by plugging in the power supply.
9
0
-80 +20
0
-12 +12
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