11
UM TGMC-120117
Bypass
When the TG1 Opto’s Bypass switch is set downward to
IN
,
the compressor is active, conversely, when positioned up-
ward, it is removed from the audio path.
Note:
For the TG1 Opto to be active in the TG Microphone
Cassette signal chain, it must be physically patched at the rear
of the unit, using a short female to male XLR cable (wired pin
2 hot), and connected from the
Pre Amp/EQ
output XLR to
the
Compressor
input XLR connector.
Link Operation
When linked to a second TG1 Opto compressor using a
standard ¼” cable via the ¼”
Link
connector at the rear of
the unit, the linked units are controlled by whichever of the
two control voltages is instantaneously the greater.
Under linked conditions, each compressor’s control set will
be managed independently.
Link connector is wired: Tip – CV, Sleeve – 0v.
Note:
When using the TG1 Opto independently of a sec-
ond unit or in mono, be sure to remove any link cable as to
not cause undesired influence of one another.
Knee
The TG1 Opto provides two compression knee types: Sharp
and Rounded.
Sharp knee
Sharp
is equivalent to limit mode on the TG1 and Zener Lim-
iters, and is considered hard. When the Knee switch is set to
Sharp
, compression will be full ratio.
Tip:
Sharp knees are often employed to control transient
peaks, while increasing overall programme level.
Historical note:
On historic EMI TG limiters,
Limit
mode
was intended to mimic the curve of the studio’s Fairchild 660
units.
Rounded knee
Rounded
is a soft type knee. The traditional soft knee is one
in which when triggered, onset of the compression ratio is
gradual; however, the soft knee implementation on the TG1
Opto functions independently from ratio.
Tip:
Rounded or soft knees are great in scenarios where
compression is required to be less obvious, such as vocals
and other melodic source.
BYPASS
SHARP
ATTACK
RELEASE
HOLD
ROUNDED
OUTPUT
IN
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
OPTO
KNEE
+ 1 2
+ 8
+ 4
0
+ 1 6
Gain
Reduction
BYPASS
SHARP
ATTACK
RELEASE
HOLD
ROUNDED
OUTPUT
IN
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
OPTO
KNEE
+ 1 2
+ 8
+ 4
0
+ 1 6
Gain
Reduction
000001
Chandler Limited
TG MICROPHONE CASSETTE
INPUT
OUTPUT
COMPRESSOR
PRE AMP/EQ
INPUT
OUTPUT
PRE AMP/EQ
PIN 1) 0v
PIN 2) 48v
PIN 3) +28v
PIN 4) -28v
DC POWER
LINK
MICROPHONE CASSETTE
TIP- CV
SLEEVE- 0v
