Fender BXR-25 Operation Manual

THE SOUND THAT CREATES LEGENDS

BXR 25

Owner,s Manual

P/N 047999

BXR 25

The Fender BXR 25amplifier is the most recent effort in
state-of-the-art bass amplifier technology. The Fender design
team developed the BXR 25with the assistance from some of
today’s best musicians. It represents years of decisions
concerning performance, features, and specifications. The
features included in the BXR 25make it a viable and tough
competitor, whether meeting the demands of a serious
practice session, or just jammin’!

The preamp section of the BXR 25 features two inputs of
differing sensitivity, that allow connection of a variety of
signal sources and levels. Built-in emphasis circuitry is
included to provide enhancement of the extreme low and high
ends of the frequency spectrum. Wide range active “HIGH”,
‘MID”, and “LOW” controls allow further response tailoring
of the high, mid, and low frequency areas of the sounds you
and your instrument produce. The rugged 25 Watt power
amplifier was designed to give years of reliable service under
all conditions and is equipped with a unique implementation
of our exclusive DELTACOMP™ adaptive compression
system. When DELTACOMP™ engages, it is practically
impossible to cause the power amplifier to clip (distort). With
DELTACOMP™, apparent compressor release time is kept
short, yet waveform distortion is kept to a minimum at low
frequencies.

A number of professional features have been added to the

BXR

25

like PREAMP OUT & POWER AMP IN jacks which
can be used as an Effects Loop. The PREAMP OUT is
connected to the input of your effect (digital delay or other
effects device) and the output from the effect is returned to the
POWER AMP IN. The PREAMP OUT can also be used to
connect your BXR
reinforcement mixer. The HEADPHONE jack automatically
mutes the speaker in addition to driving Stereo or Mono
headphones.

The selection of a Fender amplifier will reward you with years

of quality music in a wide range of sonic possibilities. This
manual is designed to familiarize you with the features and
functions of your BXR
so you will benefit from these features as soon as you start
using your new Fender amplifier.

The built-in quality of a Fender amplifier is the result of over

four decades of dedication in the combined skills of the
Fender design team.

That’s why we proudly say ..............FENDER,

That Creates Legends.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO
NOT EXPOSE UNIT TO RAIN OR MOISTURE.

25

directly to a recording console or sound

25

amplifier . Read this manual carefully

The Sound

BXR 25 FRONT PANEL FUNCTIONS

The front panel contains all items necessary for system
operation and observation. Please read this section of the
manual carefully to make sure you understand all the
operational features of your new FENDER BXR 25
amplifier.

A. Input 1: High gain
B. Input 2: Low gain

The high gain input (INPUT 1 ) should be used for most
instruments. This input can handle as much as 3.5 volts
R.M.S., while the low gain input (INPUT 2) accepts 7 volts
R.M.S. without audible distortion. For both cases, this is
greater than any active bass with a 9 volt battery can
produce. If you are using a bass with dual 9 volt batteries
or a "hot" passive bass, it might be wise to try INPUT 2.
For the rare case where two players want to use one
amplifier or where two instruments are to be used during
the performance, both inputs may be used.

C. VOLUME: This control sets the gain of the preamp and

serves as an adjustment for the "loudness" of the amplifier.

D. LOW: adjusts the low frequency part of the spectrum, the

area where the "deep” fundamentals reside.

E. MID: adjusts the mid frequency par t of the spectrum.

Turning the mid down will cause the sound to become
"TIGHT" or more "PUNCHY."

F. HIGH: adjusts the high frequency part of the spectrum.

Turning the HIGH up will cause the sound to become
"BRIGHT" or more "CRISP".

G. TAPE INPUTS: Plug-in connection for any line level

(500mV) stereo or mono signal. This signal is mixed into
the power amp along with the instrument signal from the
preamp. It has fixed gain and is unaffected by any of the
front panel controls; however, the signal will be affected
by any device inserted between the preamp output and
the power amp input. It is useful for patching in a CD, tape
player, rhythm machine or other signal source to be used
as accompaniment for practice or performance. The
output level control of the external signal source is used to
control its own volume while the front panel volume control
is used for the instrument in order to obtain a balance.

H. PREAMP OUT: This jack provides an unbalanced output

signal from the preamp. This output can be used in
conjunction with the POWER AMP IN as a patch point for
external mono effects devices.

I. POWER AMP IN: This unbalanced jack inputs signal

directly to the power amp section. It automatically
disconnects the preamp circuitry when used. This is useful
when using the patch point option or when using the BXR
25 as a slave amplifier for an external signal source.

J. 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!

K. POWER INDICATOR: When this LED is illuminated, the BXR

25 is receiving power.

REARPANEL DESCRIPTION

INPUT POWER: This tells you how much AC power (75 Watts)
the amplifier can "draw" from the wall socket when the
amplifier is at full power. The marking directly below tells you
what the the wall socket Voltage and Frequency must be.
Incorrect line voltage will damage your amplifier and VOID
THE WARRANTY.

L. POWER: Turns the BXR 25 on or off.

LINE CORD: The line cord should be connected to a suitable

power source, with the correct voltage and frequency, as
shown in the INPUT POWER at the amplifier rear. If you are
not sure, check some other piece of equipment in your area.

DO NOT ALTER THE AC PLUG.

BXR 25 SPECIFICATIONS

PART NUMBER 022-4403

POWER AMPLIFIER SECTION
Power output: 25 Watts
Rated load impedance: 8 Ohms
Distortion at rated power: 5%
Power bandwidth: 20 Hz to 20kHz
Input sensitivity: .90 VOLT R.M.S.
Input impedance: >10k Ohms

PREAMP SECTION
Input impedance: Input 1 > 220k Ohms

Input 2 > 11Ok Ohms

Sensitivity: Volume at maximum, all Input I > 10mV

tone controls at “0” Input 2 > 20mV
detent, power amp
at 25 Watts, 8 Ohms

Equalization range: HIGH +/- 15 dB at 8kHz

MID +/- 15 dB at 800 Hz
LOW +/- 15 dB at 40 Hz

PHYSICAL SPECIFICATIONS

Width: 14-3/4 inches (37.5 cm)
Height: 18 inches (45.7 cm)
Depth: 10 inches (25.4 cm)
Weight: 32 lbs. (14.5 kg)
Speaker: 1-10” Fender Special Design (P/N 038657)

Sound:

WARNING: NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.

HUGE

BXR 25 BLOCK DIAGRAM

+

A PRODUCT OF:

FENDER MUSICAL INSTRUMENTS CORP.,

BREA, CA 92621