C o n t r o l l a y o u t
a. Volume:
Yes
B. tune:
Battery must be in for tuner to function. Press
button and the tuner will light up briefly to show that it is
on and a green light will flash. To tune guitar, pluck string
and note left and right arrows around each letter that will
indicate flat or sharp. Adjust accordingly. when string is
in tune the green light will flash again. Press the button
again after tuning all strings to turn off tuner and keep
from draining battery. Note: Tuner mutes preamp when
tuner is being used.
c. Bass:
Adds or subtracts the lower frequencies.
D. Mid:
Adds or subtracts the midrange, nasal or “honky”
type sounds.
e. treb:
Adds or subtracts the highest frequencies,
“sparkle” or presence sounds.
f. Battery Status:
As the battery weakens, the light will
turn on. dO NOT remove or replace the battery while
plugged in!
G. notch filter:
if, after using the phase inversion, there is
still feedback, slowly sweep the frequency with the notch
filter until it grabs this feedback and eliminates it. This
effect will be easy to detect, as the problem frequency will
instantly vanish when the knob is in the correct position.
with the phase and notch in their optimum positions,
you will find that you can play quite a bit louder without
feedback.
H. phase:
This control changes the phase, or polarity, of
the signal. The phase of the guitar top, relative to that of
the loudspeaker, influences the guitar’s stability at high
sound levels. The speaker’s phase relative to the guitar top
is impossible to predict on stage, especially when moving
around. Therefore it is necessary to experiment with
this button to find the optimum phase setting for each
environment.
i. click-Lock Battery access:
The 9v battery is located
inside the preamp. To replace battery simply push down
on the bottom area of the face plate until you hear a click
then slowly release and the drawer will pop up.
a
B
c
D
f
e
i
H
G
