1) BAT
Battery Indicator: When a guitar cable is connected to the
output jack, the BAT LED will light, and the System 600T preamp/Eq
functions are activated. (Please note that the digital tuner function can
be activated without connecting a
cable to the output jack). To prevent
excessive battery consumption,
unplug your cable from the output
jack when the System 600T is not in
use. When the battery is wearing out,
the LED will become dim, and the
signal will become distorted. If the
LED does not light, remove the chas-
sis and replace the battery.
2) PIEZO:
This control adjusts the
level of the under-saddle bridge piezo
pickup.
3) AUX:
This control adjusts the
level of the auxiliary input, either a
sound hole pickup, or an internally
mounted microphone.
4) LEVEL:
This switch adjusts the
input level of the AUX input. When
using a magnetic sound hole pickup,
this switch should be set in the up,
or -20dB position. When an internal
microphone is used, this switch
should be set in the down,
or +20 dB position.
5) PHASE:
This switch reverses
the polarity of the PIEZO input
relative to the AUX input. If the
polarities of the different inputs
are “out of phase”, a noticeable loss
of low frequencies (bass) will occur.
If there is a loss of fullness, or low end when two input signals are
mixed, reverse the position of this switch (In/Out) to correct the polarity.
Note: If only one input is used, this switch will have no effect.
6) TREBLE:
This slider pr/- 15 dB of boost/cut at 10kHz. In
its center position, there will be no effect.
7) BASS:
This slider pr/- 15dB of boost/cut at
100Hz. In its center position, there will be no effect.
8) MID:
This slider works in conjunction with the MID
FREQ control. It pr/- 15 dB of boost/cut at the
center frequency determined by the MID FREQ control.
9) MID FREQ:
This control adjusts the center frequency
of the MID slider, variable from 600Hz to 1.2kHz. If the
MID slider is set to its center position, no effect will be
heard. Maximum effect of this control can be heard as the
MID slider is set for boost or cut.
Note: The main Eq system (TREBLE/MID/MID
FREQ/BASS) controls will only affect the piezo input signal.
These controls have no effect on the AUX input signal.
10) MASTER:
This control is the Master Volume, which
adjusts the overall output of the System 600T, including both
the PIEZO and AUX inputs.
11) NOTCH:
This switch engages a notch filter, which is
used to control feedback in live performance applications.
When the switch is in its IN (down) position a deep, narrow
band of frequencies is cut from the signal, depending on the
position of the FREQ control. This notch filter is located
“post Eq” in the circuit and will affect the combined PIEZO
and AUX input signals.
12) FREQ:
This control adjusts the center frequency of
the “anti-feedback notch”. With the NOTCH switch engaged,
turn the MASTER control up until feedback is heard. Adjust
the FREQ control until the feedback disappears.
The Alvarez System 600T has been designed to accurately
reproduce the natural sound of an acoustic guitar when used
with a wide variety of sound reinforcement and recording
equipment. Sound is very subjective. We urge you to experiment with
the many control capabilities of the System 600T in order to “dial in”
the sound that is right for you.
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S y s t e m 6 0 0 T O w n e r s G u i d e
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F r o n t P a n e l C o n t r o l s a n d F e a t u r e s
System 600T booklet 6/14/00 4:52 PM Page 5
