
THE SOUND THAT CREATES LEGENDS
Pro Junior
TYPE: PR 257  
Owner,s Manual
P/N 047443

Pro Junior introduction
The Fender Pro Junior amplifier is the ultimate in a 
professional practice amp. A TRUE ALL TUBE AMP 
with that late nite blues tone found nowhere else but 
in a Fender.
The Fender Pro Junior amplifier offers both simplicity 
and versatility through its top panel mounted controls: 
Power Switch, Power On indicator, Tone, Volume 
and Input jack. You‘ll get smooth tones from sparkly 
clean all the way to the edge with the Fender Pro 
Junior.
The speaker is connected through a standard 1/4” 
jack allowing the player‘s choice of the internal 
speaker or any external 8Ω cabinets.
Pro Junior sound settings
The Fender Pro Junior‘s compact size, professional 
tone, and traditional styling make it ideal for practice, backstage warm up, and serious recording.
The selection of a Fender amplifier will reward you 
with years of quality performance and a wide range 
of musical sounds. The built in quality of a Fender 
amplifier is the result of over four decades of dedication in the combined skills of research and development by our engineers and musicians.
That is why we proudly say...FENDER, The Sound 
That Creates Legends

Pro Junior front panel functions
A. Power Switch – This switch turns the AC power
ON and OFF. When the switch is OFF, the amplifier 
is completely shut down.
B. Power Indicator – When the indicator is illuminated the Pro Junior is receiving power.
Pro Junior rear panel 
F. Speaker Connector – This jack provides a con-
nection for the internal speaker. An Eight Ohm 
external speaker cabinet may be used instead of the 
internal speaker.
WARNING: NO USER SERVICEABLE PARTS 
INSIDE. REFER SERVICING TO QUALIFIED 
PERSONNEL ONLY.
C. Tone – Adjusts the amount of boost or cut in the 
upper mids and highs.
D. Volume – Adjusts the overall loudness of the 
amplifier.
E. Input – A high impedance, high sensitivity plug-in 
connection for instruments.

Pro Junior specifications
PART NUMBER: 120V VERSION:21-3103
INPUT IMPEDANCE: Greater than 1 Meg Ohm 
NOMINAL INPUT LEVEL: 100mV 
POWER OUTPUT: 15 Watts R.M.S. at 8 Ohms 
RATED LOAD IMPEDANCE: 8 Ohms 
POWER REQUIREMENTS: 120V VERSION:120 VAC 60 Hz., .6A Max.
SPEAKER COMPLEMENT: One 8 Ohm 10” Fender Special Design Speaker 
DIMENSIONS: Height: 14.5” (36.8 cm)
WEIGHT: 20 lbs. (9.1 kg)
230V VERSION:21-3163
230V VERSION:230 VAC 50 Hz., .3A Max.
Width: 15” (38.1 cm) 
Depth: 8.75” (22.2 cm)
SOUND:
Hot, Bluesy, Incredible!
A PRODUCT OF:
FENDER MUSICAL INSTRUMENTS CORP.,
CORONA, CA 91720