Release
In Gate mode, the RELEASE setting determines how quickly
the Gate closes (gain decrease) as the key signal drops below
threshold.
In Expand mode, the RELEASE setting determines how
quickly the signal is turned down as the key signal moves below
threshold.
In Duck mode, the RELEASE setting determines how
quickly the signal is ramped up when the key signal drops
below threshold.
Hold
In Gate mode, the HOLD time determines how long the Gate
remains open after the key signal drops below threshold.
In Duck mode, the HOLD time determines how long the
signal remains ducked when the key input drops below thresh-
old.
e HOLD time is reasserted whenever the peak signal
moves above the Gate or Duck threshold.
e HOLD control has no eect in Expand mode.
Depth / Ratio
In Gate mode, the DEPTH control determines how many dB
the signal is attenuated when the key input is at or below thresh-
old. e RATIO control has no eect in Gate mode.
In Duck mode, the DEPTH control determines how many
dB the signal is attenuated (ducked) when the key input is at or
above threshold. e RATIO control has no eect in Duck mode.
In Expand mode, the RATIO control indicates the ratio
of output change to input change when the key signal is at or
below threshold. For example, with a ratio of 4:1, the output
level decreases 4 dB for every 1 dB the key signal moves below
threshold. e DEPTH control has no eect in Expand mode.
Side-Chain Key Sources: Internal / External
e INTernal / EXTernal switch determines the source of the
side-chain key signal.
When set to INT, the channel input is the source. When
set to EXT, the side-chain input jack is the source. Side-chain
source switches remain independent in Link mode.
A wiring diagram to make your own insert cable is below.
Side-Chain: Normal / Listen
e NORMAL / LISTEN switch allows the user to listen to
the ltered side-chain key signal. When set to LISTEN, the
ltered side-chain key signal is routed to the output. Listening
to the ltered key signal assists in adjusting the side-chain lter.
When set to NORMAL , the main processed audio signal is
routed to the output jack. Side-chain Listen switches remain
independent in Link mode.
Side-Chain: Low-Cut and High Cut
e side-chain, 12 dB/octave Butterworth LOW-CUT and
HIGH-CUT lters are used to limit the detector’s response
to a particular range of frequencies, thereby minimizing false
triggering.
ese lters are only applied to the side-chain. ey do not
aect the main output (unless you accidentally leave the LIS-
TEN switch engaged).
Side-chain ltering is advantageous in virtually all dynam-
ics control applications. For example:
• Adjust the HIGH-CUT lter to tune out the mic bleed from
the snare drum or cymbals when gating a kick drum or tom
mic. Similarly, adjust the LOW-CUT lter to tune out the
kick drum when gating a snare mic.
• Adjust the LOW-CUT lter to eliminate background noise
(a low frequency air conditioner, for example) when using a
speech microphone to duck music. e ltered signal is less
likely to false trigger, while the detector remains sensitive to
voice signals.
Manual-3
ms
2 Sec
250
125 500
25
RELEASE
Sec
3
.5
.252
0
HOLD
n:1
dB
8
4
26
10
40
60 20
80
RATIODEPTH
EXTINTLISTENNORMAL
SIDE-CHAIN
Hz Hz
5k
315
80
1.25k
20 20k
2k
630
6.3k
200
LOW-CUTHIGH-CUT
1-CONDUCTOR SHIELDED CABLE
1-CONDUCTOR SHIELDED CABLE
T = SEND
R = RETURN
S = SHIELD
SEND
RETURN
SHIELD SHIELD
SHIELD
Send/Return Cable Wiring (Insert Cable)
