Fender Princeton Chorus User Manual

THE SOUND THAT CREATES LEGENDS

PRINCETON CHORUS
OWNER’S MANUAL

P/N 030780

PRINCETON CHORUS OWNER’S MANUAL

The Fender PRINCETON CHORUS amplifier presents the player with the best value of any amplifier in its price class. The
PRINCETON CHORUS is much more than a portable Gain Switching Amplifier. Besides its basic complement of VOLUME,

TREBLE, MID, BASS & REVERB this amplifier offers a selectable
Channel amplifier! The

distortion-activated
stereo

PRINCETON CHORUS is one of the most
Fender Pre & De-Emphasis Distortion is based on unique Pre and Post clipper voicing filters designed to simulate the preamp

tone settings and speaker output of an overdriven tube amplifier. You get the
stack amps are known for. The MID BOOST switch provides a second pre-emphasis voice and the PRESENCE control
provides continuous variation of the high frequency content in the de-emphasis voicing.

The LIMITER is a new feature which will provide gain compression at the onset of distortion and can be used to dial in the
exact degree of distortion without sacrificing sustain. This effect is particularly dramatic at high GAIN settings. At high
LIMITER and GAIN settings a very dynamic effect can be achieved by varying pick attack. (i.e.: The harder you pick, the cleaner

the note. Also
control turned down can achieve reverse envelope, backwards tape effects and many other sounds.)

The
the amp.

chorus circuit utilizing two 25-watt power amplifiers gives this amp that lush stereo chorus sound. The Fender

harmonic content will

extended range

Overdrive

Limiter which provides dynamic interactive control over the distortion characteristic. In addition, a

three band equalization circuitry is post overdrive and can be used to further modify the overall sound of

channel features Exclusive Fender Pre & De-Emphasis Distortion circuitry plus a unique

“Expressive”

increase as notes are allowed to sustain. High output pickups with the instrument tone

amplifiers ever made.

Overdrive

channel with features that make it virtually, a Two

true

searing smooth

highs backed by

deep

punch that

In addition to convenience features like All
detachable footswitch for selecting the Overdrive Mode and for activating the stereo chorus circuitry. These functions are
multiplexed over a standard 1/4 inch phone plug for ease of connection or extension of the footswitch to remote pedal boards.
The versatility of the PRINCETON CHORUS is greatly expanded by the individual mono and true stereo EFFECTS LOOPS.
These patch points allow for a wide variety of external effects connection schemes and amplifier slaving configurations. They
also provide for direct connection to recording and sound reinforcement mixers. The HEADPHONE jack automatically mutes
the speakers in addition to driving standard Stereo or Mono headphones and can also be used as a line out.

Last, but definitely not least, the Fender PRINCETON CHORUS packs a new stereo power amp section that is based on a
radically underdamped design that interacts with the speakers in much the same way as a tube amplifier does, producing
sparkle and punch with an increase in apparent loudness and power that defies comparison to other similarly rated units.
These amps are LOUD, and the Fender Special Design 10 inch speakers can reliably put it out, night after night.

The selection of a Fender amplifier will reward you with years of quality music in a wide range of controlled sounds. This manual
is designed to familiarize you with the equipment and to acquaint you with its many fine features. Read it carefully so that you
will benefit from all the features as soon as you start using the amplifier.

The built-in quality of a Fender amplifier is the result of over three and a half decades of dedication in the combined skills of
research and development by our engineers and musicians.

That is why we say, proudly... FENDER, The Sound That Creates Legends.
WARNING: TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT EXPOSE AMPLIFIER TO RAIN OR MOISTURE.

Front Panel Mounted Controls and Jacks,

the PRINCETON CHORUS features a

PRINCETON CHORUS FRONT PANEL FUNCTIONS

A. INPUT 1-A high impedance, high sensitivity plug-in connection for instruments,
B. INPUT 2-Plug-in connection for instruments. This input exhibits a lower input impedance and sensitivity than INPUT 1

and is useful with active preamp guitars, and will provide a darker tone with passive guitars. Both inputs are identical when
used simultaneously.

C. VOLUME-Adjusts the overall loudness when not in the OVERDRIVE mode. (SEE: M. SELECT and S. FOOTSWITCH).

D. TREBLE-Adjusts the amount of boost (accentuation) or cut (attenuation) in the high frequency range.
E. MID-Adjusts the amount of boost or cut in the mid frequency range.
F. BASS-Adjusts the amount of boost or cut in the low frequency range.
G. REVERB-Adjusts the overall amount of reverberated signal mixed with the original dry signal.

H. GAIN-Adjusts the amount of preamp amplification while in the OVERDRIVE mode. Cleaner sound is achieved at lower gain

settings, high gain settings will produce more sustain and distortion. This control works in conjunction with the N.
OVERDRIVE-VOLUME control to set the overall loudness at the output.

I. MID-BOOST-Activates a special pre-emphasis filter which accentuates mid-range frequencies.

J. LIMITER-Adjusts the amount of compression at high GAIN settings. The compression is activated by distortion in

the preamp, therefore it is not as noticeable at low gain settings.

K. OVERDRIVE INDICATOR-This LED is illuminated when in the overdrive mode.
L. PRESENCE -Adjusts the amount of boost or cut in the upper high frequency range while in the OVERDRIVE mode. This

control occurs post preamp distortion and is useful in adjusting the distortion characteristic from brash, to smooth.

M. SELECT-Activates the OVERDRIVE Mode. NOTE: This switch disables the Channel Select Footswitch and the C.

VOLUME control.

N. VOLUME-Adjusts the overall loudness while in the OVERDRIVE mode.

O. RATE-Adjusts the sweep rate of the chorus generating circuitry. A lower number corresponds to a slower rate of sweep.

P. SELECT- Activates the stereo CHORUS mode. NOTE: This switch disables the Chorus Select Footswitch.

Q. DEPTH-Adjusts the intensity of the chorus effect. A lower setting will introduce a subtle yet distinct effect wher eas a higher

setting will create a more dramatic effect. With both the 0. RATE and DEPTH controls set midway or higher, a variety of
vibrato/tremolo type effects can be achieved.

R. CHORUS INDICATOR-This LED is illuminated when the stereo chorus is active. The intensity of the LED is modulated

by the chorus sweep LFO to give a visual indication of the sweep rate.

S. FOOTSWITCH- Plug-in connection for remote footswitch to activate the OVERDRIVE mode and to switch the stereo

CHORUS on and off. For proper operation of the footswitch, both M. OVERDRIVE SELECT and P. CHORUS SELECT

switches should be out. NOTE: Any good quality patch cord will work with the remote footswitch, however a
speaker grade cord is preferable to a coax guitar cord when it’s available.