SND
EFF LOOP
FS-22
FOOT SW
RTN
STEREO RETURN
PRE-AMP OUT
1-800-854-2235
MADE
AUS
IN THE
LOW FREQ HI FREQ
PRE AMP
LINE
DIR
GND
LIFT
SPEAKER OUTPUTS
AMP 2
(HIGH FREQ)
AMP 1
(LOW FREQ)
WARNING –– To prevent a fire hazard, provide adequate space for ventilation! WARNING –– To prevent fire or
shock, do not expose to rain or moisture. WARNING –– Do not remove cover. No user-serviceable parts inside.
CAUTION: TO PREVENT SHOCK, DO
NOT DEFEAT THE SAFETY GROUND.
SPARE
FUSE
FUSE 6A
SLOW BLOW
575VA
120V 60Hz
S/N REMOVED
FUSE
RED LINE SERIES AMP
EFFECTS PROCESSOR
TO MIXER
MIXER SNAKE
SELECT REVERB / EFFECTS
FS 22
FS22 FOOTSWITCH
CONNECT YOUR MAIN EFFECTS UNIT TO THE
EFFECTS LOOP JACKS, THIS LOOP IS FOOTSWITCH
SELECTABLE BY USING THE FS22 FOOTSWITCH.
OPTIONAL FS22 FOOTSWITCH REMOTELY SWITCHES
GRAPHIC EQ. AND PRIMARY EFFECTS LOOP.
USE THE BALANCED XLR OUTPUT TO
CONNECT TO A MIXING CONSOLE.
SELECT "DIR" FOR A DIRECT OFF OF
THE BASS FEED, OR "LINE" TO INCLUDE
THE RED LINES SIGNAL PROCESSING.
A GROUND LIFT IS AVAILABLE TO
ELIMINATE GROUND LOOP PROBLEMS.
TYPICAL EFFECTS HOOKUP
EFFECTS HOOK UP
The Red Line Series bass amplifiers offer a lot of flexibility when connecting to external
signal processing or recording gear. The main effects loop “EFF LOOP” offers a footswitch
selectable loop which lies directly after the main eq. and just before the graphic eq.. To use
this loop connect the send “SND” 1/4’’ phone jack to the input jack of the effects unit, and
connect the return “RTN” 1/4” phone jack to the output jack of the effects unit. The FS22
footswitch should be connected to the jack on the back panel marked “FOOT SW”. The
FS22 will allow you to remotely engage and disengage the nine band graphic eq. and the
effects loop. Note: the FS22 is not required to use the graphic eq. or the effects loop. The
“PRE AMP” out XLR jack offers a balanced signal feed to send to recording or sound rein-
forcement equipment. This feed can be selected pre or post eq and compression. Press the
LINE / DIR switch to the in position for a direct feed from the instrument. Set the LINE /
DIR to the out position to include the Red Line’s signal processing. A ground lift switch is
provided to break the ground on the XLR output in order to tame problem ground loop
situations. Press the GND / LIFT switch to the in position to lift the ground on this output.
3. MAIN EQ.
The main Eq. con-
sists of a low shelv-
ing control, a
sweep midrange
control and a high
shelving control.
T h e L O W c o n t r o l
provides the overall
shaping of the low
frequencies, as
shown in FIG. 1. The action of this control has been carefully matched to the response of
the bass guitar, and provides the player with powerful control over the frequency range
most critical to the sound of the instrument. The
MID SWEEP controls perform as a semiparametric
eq. over the mid frequency range. The GAIN knob
provides a boosting or cutting action at a relatively
narrow band of frequencies. When the GAIN knob
of the MID SWEEP control is set to “0” the mid
sweep will have no effect. To boost or cut a specif-
ic frequency
rotate the
G A I N k n o b
clockwise or
counter clock-
wise respec-
tively, as shown in FIG. 2. The FREQ control knob is
used to select the center frequency where the boosting
or cutting will occur. The best way to become famil-
iar with the MID SWEEP control is to set the G A I N
knob at either full cut or full boost and rotate the
F R E Q k n o b
over its range of frequencies, see FIG. 3. Listen to
the results and experiment with different levels of
cut and boost. The MID SWEEP eq. is a powerful
sound shaping tool which usually requires some
practice to get the best results. The H I G H c o n t r o l
knob is designed to cut or boost the high frequen-
cies of the bass guitar. The response of this control
is shown in FIG. 4. Boosting with this control is
useful for bringing up the very highest harmonics
of the bass,
which is
especially useful when slapping or popping. Note:
boosting the high frequencies can result in
increased white noise (hiss), especially when using
speakers that include tweeters. The Red Line Series
bass amplifiers contain a very powerful eq. section,
so it is important to remember that too much or
improper equalization can give the bass a unnatural
or even an unpleasant sound. Experimentation is
the key to finding how each control affects the over-
all sound. With a little practice you should have no
problem finding the sound you are looking for.
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