Manual-7
MASTER / SLAVE Stereo Link
When channels are Linked
• Bypassing the Master channel does not automatically bypass
the Slave channel. Channel ACTIVE / BYPASS switches are
the only controls which do not follow the Master channel,
making it possible to bypass each channel individually.
• Selecting
Listen
on the Master channel automatically puts
both channels into Listen mode. Side-chain function switch
indicators are turned off on the Slave channel.
• Meters for Master and Slave channels remain active, indicat-
ing both channels are being processed.
ACTIVE / BYPASS
The
MASTER / SLAVE
switches link channels 1 & 2, or
channels 3 & 4 for stereo operation. When linked, the associ-
ated LINK indicator lights and only the controls of the Master
channel (channel 1 or channel 3) are active, with the exception
of channel ACTIVE / BYPASS switches. This feature helps pre-
serves a stable left/right image when compressing a stereo source,
such as a vocal or horn submix.
MASTER
SLAVE
1
2
LINK
MASTER
SLAVE
3
4
LINK
Figure . Active controls in Linked Mode
Stereo Linking in Compressor Mode
Linked Compressors use the rms sum of the two channels’ side-
chains, and display this summed result on the side-chain dBr
meters of both channels. The Master channel settings determine
the actual gain reduction characteristics.
Linked Controls in Dynamic EQ Mode
When channels are linked in Dynamic EQ mode, both channels
use the Master channels’ control settings, but the dynamic EQ
essentially functions independently for each channel. Combin-
ing the rms values of broadband and bandpass signals, as is done
in Compressor mode, is of no advantage in Dynamic EQ mode.
Stereo-Linked Limiters
When channels are linked, the Master channel Limit Threshold
setting determines the maximum output level for both chan-
nels. However, the greater of the two peak-detected signals is
used to control the gain of both Master and Slave channels. For
example, if the Slave channel signal exceeds the Mater channel’s
Limit Threshold by 3 dB, both channels are limited by 3 dB.
The Limit Headroom meters remain independent for both chan-
nels, as the dynamics of the Master and Slave channels may be
quite different.
0
0
6
3
12
24
dB
-20
-10
0
-40
-30
+20
+10
-20
-10
0
-40
-30
+22
+10
ms
ms
dBu
dBu
dB
Hz
oct
Headroom
dB
8
-3 -1
12
4 2
-6
-12
1
n:1
MASTER
SLAVE
10
2
1.5
5
-6
+6
-6
+6
1
500
100
50
250
25
10
2
1
5
0.5
20k
640
125
3.15k
20
500
125
1 s
2 s
50
25
+12
-12
+12
-12
0
0
6
3
12
24
dB
-20
-10
0
-40
-30
+20
+10
-20
-10
0
-40
-30
+22
+10
ms
ms
dBu
dBu
dB
Hz
oct
Headroom
dB
8
-3 -1
12
4 2
-6
-12
1
n:1
10
2
1.5
5
1
500
100
50
250
25
10
2
1
5
0.5
20k
640
125
3.15k
20
500
125
1 s
2 s
50
25
+12
-12
+12
-12
18
18
SIDE-CHAIN
RELEASE
ATTACK
KNEE
GAIN
FREQUENCY
BANDWIDTH
LIMIT THRESHOLD
RATIO
GAIN
COMP THRESHOLD
1
2
LINK
Auto
Auto
Soft
Hard
dBr
Reduction dB
Listen Dynamic
EQ
Comp
LIMIT
BYPASS
ACTIVE
PEQ
SIDE-CHAIN
RELEASE
ATTACK
KNEE
GAIN
FREQUENCY
BANDWIDTH
LIMIT THRESHOLD
RATIO
GAIN
COMP THRESHOLD
Auto
Auto
Soft
Hard
dBr
Reduction dB
Listen
Comp
LIMIT
BYPASS
ACTIVE
PEQ
TH
TH
Dynamic
EQ
Selecting
BYPASS
disables all Compressor/Dynamic EQ
processing, including the GAIN control. The side-chain dBr
meter, threshold indicator and gain reduction meter continue
to operate when a channel is bypassed. Similarly, the side-chain
Listen function is also available. Channels can be individually
bypassed, even in Linked mode.
Note:
The Limiter is active at all times and is not affected by
the BYPASS switch. To bypass the Limiter, simply rotate the
Limiter Threshold control fully clockwise (+22 dBu setting).
BYPASS
ACTIVE
