IV.
2
Control Matrix
Electric Signal MMXV AD
Page 15
Delta Transconductace band Compressor
User Manual
Page 16
This Control is an 11 position rotary switch, and
controls a relay based attenuater with a
resolution of 1.5dB per step. Together with the
Threshold control this defines the slope and the
threshold of the compression curve.
The attack control determines the speed with
which the compressor attacks a level above the
threshold point. It also determines the ratio of
action the compressor will have on short
duration spikes and transients.
The threshold control is used to adjust the
amount of compression in conjunction with the
input gain. With the control in the full clockwise
position (out), there will be no compression.
Turning the control anti-clockwise increases the
amount of compression.
It determines the time-rate of compression holding
action. Increasing the control clockwise lengthens
the holding time.
This Control is an 11 position rotary switch and
controls a relay based attenuater with a
resolution of 1.5dB per step. Besides amplefying
the signal after compression, this control can be
used to mix the low, mid and high band together.
IV.
2.1
Input Gain
IV.
2.2
Attack time
IV.
2.4
Threshold
IV.
2.3
Release time
IV.
2.5
Recovery gain
Behold the following visual: This is a manipulated
image from the front panel; the control, main and
the filter section are edited out. What is left is an
empty matrix.
The controls are arranged in that matrix:
High
Mid
Low
Input Gain (dB)/
stereo link
Attack time (ms)/
time adder
Recovery time (s)/
time adder
Threshold (dBu)
Recovery gain
(dB)/mute
Gain
reduction
Calibration
High
Mid
Low
Input Gain (dB)/
stereo link
Attack time (ms)/
time adder
Recovery time (s)/
time adder
Threshold (dBu)
Recovery gain
(dB)/mute
Gain
reduction
0.2
0
-0.5
-1
-2
-3
-6
-8
-10
-14
-20
r
i
g
h
t
9
-6
-3
3
0
12
-3
0
6
9
3
on
on
link
on
mono
off
off
mute
6
l
e
f
t
0.01
0.04
0.05
0.08
0.10
0.13
0.2
1.2
0.5
1.5
0.8
1.8
0.1
0.6
0.3
0.8
1.0
1.5
4.0
34
20
50
100
130
9
-6
-3
3
0
12
-3
0
6
9
3
on
on
link
on
mono
off
off
mute
6
0.01
0.04
0.05
0.08
0.10
0.13
0.2
1.2
0.5
1.5
0.8
1.8
0.1
0.6
0.3
0.8
1.0
1.5
4.0
34
20
50
100
130
9
-6
-3
3
0
12
-3
0
6
9
3
on
on
link
on
mono
off
off
mute
6
0.01
0.04
0.05
0.08
0.10
0.13
0.2
1.2
0.5
1.5
0.8
1.8
0.1
0.6
0.3
0.8
1.0
1.5
4.0
34
20
50
100
130
Calibration
r
i
g
h
t
l
e
f
t
0.2
0
-0.5
-1
-2
-3
-6
-8
-10
-14
-20
0.2
0
-0.5
-1
-2
-3
-6
-8
-10
-14
-20
level
zero
bal
level
zero
bal
level
zero
bal
l
e
f
t
r
i
g
h
t
out
9
-6
-2
3
1
-8
7
14
0
5
out
9
-6
-2
3
1
-8
7
14
0
5
out
9
-6
-2
3
1
-8
7
14
0
5
