Princeton 112 Plus Front Panel Functions
M. REVERB -
Adjusts the amount of reverb signal mixed
with the original dry signal for both the Normal and Drive
Channels.
N. FOOTSWITCH -
Plug in connection for the optional
footswitch to select between the Normal and Drive
Channels and to switch the Reverb on and off. For
proper operation of the footswitch, the DRIVE SELECT
switch (item K) should be out. NOTE: Any good quality
patch cable will work with the remote footswitch,
however, a speaker grade cord is preferable to a coax
guitar cable if it is availability.
O. PREAMP OUT -
This jack provides an unbalanced
output signal from the preamp and can be used in
conjunction with the POWER AMP IN jack (item P) as a
patch point for effects units (i.e. as an effects loop). This
signal can also be used to feed recording and sound
reinforcement mixers. Additionally it can drive another
amplifier as a slave by connecting a standard guitar
cable from the PREAMP OUT jack of the master
amplifier to the POWER AMP IN jack of the slave.
P.
POWER AMP IN -
This unbalanced jack inputs signal
directly to the power amp. It automatically disconnects
the preamp signal when used. This is useful when using
the effects loop option or when using the PRINCETON
112 Plus as a slave amplifier.
Q. HEADPHONES -
This jack provides an output to
standard stereo or mono headphones for private
listening. NOTE:
Use of this jack automatically
disables the main speaker.
CAUTION: Prolonged
listening at high levels may be hazardous to your
hearing! This jack can also be used as an unbalanced
line output, which is post effects loop, by using either a
stereo or mono 1/4 inch phone plug connection.
R. POWER SWITCH -
This switch turns the AC power ON
and OFF. When the switch is OFF the amplifier is
completely shut down.
LINE CORD -
This amplifier is equipped with a
grounding type supply cord to reduce the possibility of
shock hazard. Be sure to connect it to a grounded
receptacle.
DO NOT ALTER THE AC PLUG.
A. INPUT -
A high impedance, high sensitivity plug-in
connection for instruments.
B. VOLUME -
Adjusts the overall loudness of the Normal
Channel.
C. NORMAL CHANNEL INDICATOR -
This LED is
illuminated when the Normal Channel is active.
D. TREBLE -
Adjusts the amount of boost or cut in the
high frequency range of the Normal Channel.
E. BASS -
Adjusts the amount of boost or cut in the low
frequency range of the Normal Channel.
F. GAIN -
Adjusts the amount of preamp amplification in the
Drive Channel. Cleaner sound is achieved at lower gain
settings; high gain settings will produce more sustain
and distortion. This control works in conjunction with
the DRIVE VOLUME control (item L) to set the overall
loudness of the Drive Channel.
G. DRIVE CHANNEL INDICATOR -
This LED is illuminated
when the Drive Channel is active.
H. CONTOUR -
Adjusts the overall tone quality of the Drive
Channel without affecting the signal level. Low
CONTOUR settings will provide emphasis in the
midrange frequencies whereas a higher setting will
notch the midrange to produce sounds characteristics
of most “metal” music.
I.
TREBLE -
Adjusts the amount of boost or cut in the
high frequency range of the Drive Channel.
J. BASS -
Adjusts the amount of boost or cut in the low
frequency range of the Drive Channel.
K. DRIVE SELECT -
Activates the Drive Channel. NOTE:
This switch disables the optional Channel Select
Footswitch and the Normal Channel controls.
L. VOLUME -
Adjusts the overall loudness of the Drive
Channel.