ARREL Audio
R-506 User Manual, Issue 0.1
Page 8
ATT(ACK) SWITCH (HI AND LO BAND)
Select one of the three positions to select slow,
medium and fast (separate switch for HI and LO
band).
OFF-ON-X10 SWITCH
This is the most important switch of the compressor
unit.
Select OFF to use the compressor as a
single band traditional compressor. In this
operative mode the high section of the
compressor is activated.
Select ON to use the compressor as a dual
band compressor. In this case the crossover
frequency range knob works on a 50Hz-500
Hz range.
Select x10 to use the compressor as a dual
band compressor. In this case the crossover
frequency range knob works on a 500Hz-
5000 Hz range.
CROSSOVER FREQUENCY KNOB
Rotate the knob to change the cutoff frequency of
the crossover.
LINK JACK (3.5 MM STEREO JACK)
The link Jack is used to link two R-506 units. In this
way two R-506 can be linked for stereo
compression. The left channel in the first unit is sent
via the link cable to the second unit (right channel)
and added to the right channel to generate the
control signal to the right channel compressor. The
same happens to the right channel that is sent to
the first unit (left channel) and added to the left
channel in the generation of the control signal for
the left channel compressor. Each channel can then
be controlled with the front panel controls.
SIDE JACK (3.5 MM STEREO JACK)
The link Jack is used to control the VCAs by an
external side chain signal.
LO CUT SWITCH
Used in the mono band mode to insert a variable
frequency Low Cut filter on the side chain. The Low
R 506
AUDIO
SINGLE
Fx10
Hz
X-OVER
SIDE LO CUT
GR / VU
DUAL
ON
OFF
+20
+12
+12
0
0
1
1
+5
0
-20
-20
300
200
500
400
100
150
S
S
S
S
MODE
ATT
ATT
REL
THR
THR
RATIO
RATIO
REL
F
F
F
F
50
LINK
SIDE
DRY
LO
WET
HI
HI
LO
VU
OUT
ON
