ARREL Audio
R-506 User Manual, Issue 0.1
Page 7
R-506 Front Panel Controls and
Operations
DRY-WET KNOB
The DRY-WET knob is used to mix the dry signal
from the input of the compressor and the WET i.e.
the compressed signal at the output of the
compressor (mono and dual band compression).
HI-LOW KNOB
The HI-LO knob is used to mix the compressed
audio signal at the output of the two channels of the
compressor (HI and LO channel).
OUT LEVEL KNOB
The OUT knob is used to set the output level.
HI/VU/LO SWITCH
It is used to select the measurement on the display.
Select HI to visualize the compression factor on the
HI channel. Select LO to visualize the compression
factor on the LO channel. Select VU to visualize the
level at the output of the compressor.
When the compressor is bypassed the VU meter is
able to measure the input signal level.
RATIO KNOB (HI AND LO BAND)
It is used to set the compression ratio of the
compressor. A knob for each band. The
compression ratio range is 1:1, to
∞
:1.
THRESH(OLD) KNOB (HI AND LO BAND)
It is used to set the threshold of the compressor. A
knob for each band. The threshold range is -20
dBu, +13 dBu.
REL(EASE) SWITCH (HI AND LO BAND)
Select one of the three positions to select slow,
medium and fast (separate switch for HI and LO
band).
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
