Fender BXR 300C, BXR 300R User Manual

THE SOUND THAT CREATES LEGENDS

BXR 300C
BXR 300R

Owner,s Manual

P/N 040294

INTRODUCTION

The Fender BXR 300 AMPLIFIER is the most recent effort in
state of the art bass amplifier technology, and is a member of
the FENDER BXR series. The design execution of the BXR 300
was carried out with the aid of some of today’s best players,
and represents years of thought and consideration in the
determination of features and specifications. The features
included in the BXR 300 will provide a forum for almost every
conceivable playing style from “contemporary” to those yet to
come.

This manuel covers all the features and functions for both BXR
300 models; the BXR 300R (rack mount) and the BXR 300C
(1-15 combo).

Much attention has been given to those who would like to
take advantage of the new signal processing devices which
have appeared in recent time. Processors from simple battery
powered devices to professional rack mounted studio types
may be used. This facility is accomplished through the use of
“PREAMP OUT” and “POWER AMP IN”. The preamp section
of the BXR 300 features two inputs, of differing sensitivity. A
pair of buttons called “ENHANCE” are provided to allow
enhancement of the low or high end of the spectrum. Active
“BASS” and “TREBLE” controls allow response tailoring of the
high and low frequency areas of the sounds you and your
instrument produce.

The “MID” and “MID FREQUENCY” controls allow up to 20
decibels of boost or cut of the mid frequencies from 150 Hz
to 4kHz. The rugged 300 Watt power amplifier was designed
to give reliable service under all conditions and is equipped
with our exclusive DELTACOMP™ adaptive compression
system. When DELTACOMP™ engages, it is practically
impossible to cause the power amplifiers to clip (distort). With
DELTACOMP™, apparent compressor release time is kept
short yet waveform distortion is kept to a minimum at low
frequencies.

The BXR 300R is designed to perform well with almost any
high quality speaker system, but performs best when used
with members of the FENDER BXR and HM series. Speakers
in these series include the BXR-115 , with a single fifteen inch
FENDER special design driver, BXR-215 with two fifteen inch
FENDER special design drives, BXR-410 with four ten inch
FENDER special design drivers or the BXR SPECTRUM,
employing one eighteen inch and two ten inch FENDER
special design drivers and a BI-AMP ready crossover
network.

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

FRONT PANEL DESCRIPTIONS

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 300. The Front
Panel is similar for both the 300R and 300C.

(A) INPUT: Two inputs are provided;

Input 1 ­Input 2 -

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.

(B) ENHANCE:

boost.
eliminating sub-sonic noises below 40 Hz.

(C) VOLUME: This control sets the gain of the preamp and
serves as an adjustment for the "loudness" of the amplifier.

(D) TREBLE: - adjusts the high frequency part of the spectrum.
Turning the treble up will cause the sound to become
"BRIGHT" or more "CRISP".

High gain
Low gain

HIGH ENHANCE

LOW ENHANCE

provides high frequency

provides low frequency boost, while

(E) MID: - Can be used to add or subtract the frequency range
set by MID FREQUENCY control.

(F) MID FREQUENCY: - Adjusts the frequency of boost or cut
by the MID control.

(G) BASS - adjusts the low frequency part of spectrum, the
area where the "deep" fundamental reside.

(H) PREAMP OUT: The preamp jack is a source of signal as it
appears at the power amp input. This jack can be used as a
"LINE OUT" or as a "SEND" point for an external effects
device.

(I) POWER AMP IN: Use of this jack allows the default input
signal from the preamp to be replaced by an external source,
(usually the "return" from an effects device).

(J) DELTACOMP™: With this button in, DELTACOMP™ is
active, in the out position, DELTACOMP™ is deactivated,
and a special ASYMMETRIC LIMITER circuit is enabled. The
LED next to this button indicates that the power amplifier has
reached full power and that either DELTACOMP™ or
LIMITING has occurred, depending which position that the
switch is in. The unit may seem louder without DELTACOMP™
since the power amp will be allowed to go into clipping. With
DELTACOMP™ on, your volume level will be rather loud
before the compressor turns on; this is normal.

(K) POWER: Turns the BXR 300 on or of f.