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
800Hz
FREQ
300
200 2K
1K
800
ON
OFF
ACTIVE
GAIN
X-OVER
FREQ
0
8
4
4
8
–12
+12
EQ
GAIN
BLEND
SS TUBE
THRESH
INPUT
MID SWEEP
COMPRESSOR
LOW
3
6
9
12 12
9
6
3
0
HIGH
RATIO THRESH
GATE
3
6
9
12 12
9
6
3
0
3
6
9
12 12
9
6
3
0
EQ
80 125 25050 500 800 1.3K 2.6K 5K
FULL
RANGE
BI-AMP
AMP 2
(HIGH FREQ)
AMP 1
(LOW FREQ)
EFF
LOOP
CLIP
PASSIVE
MID
SHIFT
LOW
BOOST
PRE SHAPE
HI
BOOST
PHONES
POWER AMP CONTROL
VOLUME
0 10
1 9
8
7
6
5
4
3
2
0 10
1 9
8
7
6
5
4
3
2
0 10
1 9
8
7
6
5
4
3
2
R600
200Hz 2kHzOFF COMP LIMIT OFFMAX MAX
3
6
9
12 12
9
6
3
0
RED LINE
STEREO BASS AMP
SET SWITCH TO BI-AMP MODE (SWITCH OUT)
ADJUST CROSSOVER FREQUENCY WITH KNOB
ADJUST TO SET THE RELATIVE VOLUME
LEVELS ON EACH SPEAKER ENCLOSURE
HIGH FREQUENCY CABINET
LOW FREQUENCY CABINET
R600 or R1000
TYPICAL BI-AMP SETUP
R600 BI-AMP HOOK UP
The R600 bass amp contains two separate (stereo) power amplifiers. This makes it possi-
ble to run a full Bi-amped rig directly off of your bass amp. The AMP 1 (LOW FREQ) 1/4”
phone jack should be connected to a low frequency speaker cabinet, usually a 15” or 18”
speaker. The AMP 2 (HIGH FREQ) 1/4” phone jack will be connected to a set of high fre-
quency drivers, often a 4x10 box with a tweeter. The crossover selector switch must be set
to the B I - A M P (out) position in order to engage the internal electronic crossover. The
crossover frequency is set by rotating the X-OVER knob on the front panel. The mix of the
low and high frequency volume levels are set with the AMP 1 and AMP 2 POWER AMP
CONTROL knobs.
7. GRAPHIC EQ.
The nine band graphic eq. has been designed with the center frequencies most requested
by professional bass players. The eq. can be used to fine tune the tonal content of the
amps output. Since the graphic eq. is controllable with either the optional F S 2 2
footswitch or the EQ switch on the front panel, it can be used to develop a second sound
from the amp. Musicians that play more than one bass on stage will find this useful to get
the sounds they desire out of each of their instruments. The footswitch selectable graphic
eq. can also be useful during passages of a song when the bass needs to punch through
the mix. A yellow LED indicator located along side of the eq. signifies when the graphic
eq. is in the circuit. A green effect loop LED labeled EFF LOOP indicates when the effects
loop is turned on. Note: the EQ switch on the front panel overrides the SELECT switch
on the footswitch. So when the graphic eq. is off on the front panel it can not be turned on
with the footswitch.
8. OUTPUT GROUP
The output group determines how the Red Line amplifier interfaces with other gear and
speakers. The VOLUME control sets the overall volume level of the amp, use this control
to set the amplifier to the desired listening volume. The POWER AMP CONTROL knobs
deliver precision control over the individual amps. These are used to balance the low and
high cabinets when biamping. To set the balance in a bi-amped rig bring up the AMP 1
(LOW FREQ) knob until the desired volume
level is reached. Now bring up the AMP 2
(HIGH FREQ) knob until the desired balance
between the lows and highs is met. If the volume
control is at its maximum position and more vol-
ume is needed, increase both P O W E R A M P
C O N T R O L knobs by the same amount, so that
the mix is unchanged. The POWER AMP CON-
TROL knobs can also be used to set the level of
two full range speakers. So one speaker can be
used as a monitor for the guitar player or drum-
mer and the other speaker as the main bass cabi-
net. A front panel mounted PHONES jack is pro-
vided for practicing or as a place to hook up a
tuner. Use high quality headphones with an
impedance greater than 100W when connecting to
this jack. The phones jack does not interrupt the
amplifiers output, so a tuner can be left plugged
into this jack while playing. Note: When using a Tip / Ring (mono) cable to attach gear
such as a tuner to the phones jack insert the cable to the first click of the jack.
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