User Guide
VT-747SP RECALL SETTINGS
Class A Vacuum Tube
STEREO SPECTRAL OPTO-COMPRESSOR
VT-747SP
Avalon Design is a division of Avalon Industries, Inc. 2000
c
TSP
TWIN SIGNAL PATH
20
10
3
2
AVALON
VACUUM TUBE
-
7
5
3
1
0
1
2
decibels
VU
+
IN IN IN IN INININ
HF
v
747
sp
t
-
dB+
-15 +15 -15 +15
0dB
+2 +6
+10
SIDE-CHAIN THRESHOLD
CONTOUR
GR SC LISTENSIDE-CHAIN
CAL
GR
GAIN
+10dB
60
100
80
160 250
300
400
1k
Hz
70 600
200
600
1k
800
1k6 2k5
3k
4k
10k
Hz
700 6k
2k
LF
TSP
EQ COMP
INPUT
0
20 8
3 2
46
610
11
FAST SLOW
ATTACK
TUBE
SIGNAL
PATH
FAST SLOW
RELEASE
GAIN
MAKE-UP
COMPRESSOR
METER
RATIO
COMPRESSION
1 20
4 7
83
102
65
-
dB+
THRESHOLD
20 20
0
6
10
-
10
1615
3+2
DESIGN
AVALON
0
1
2
3
3
2
1
+
-
CLASS A PROGRAM EQUALIZER LEVEL
SIGNAL
-
dB+
OUTPUT
0
20 6
2 2
34
48
11
EQUALIZER
R
dB
L
30
0
24
18
12
+
-
12
6
6
18
24
30
20
10
3
2
AVALON
VACUUM TUBE
-
7
5
3
1
0
1
2
decibels
VU
+
IN IN IN IN INININ
HF
v
747
sp
t
-
dB+
-15 +15 -15 +15
0dB
+2 +6
+10
SIDE-CHAIN THRESHOLD
CONTOUR
GR SC LISTENSIDE-CHAIN
CAL
GR
GAIN
+10dB
60
100
80
160 250
300
400
1k
Hz
70 600
200
600
1k
800
1k6 2k5
3k
4k
10k
Hz
700 6k
2k
LF
TSP
EQ COMP
INPUT
0
20 8
3 2
46
610
11
FAST SLOW
ATTACK
TUBE
SIGNAL
PATH
FAST SLOW
RELEASE
GAIN
MAKE-UP
COMPRESSOR
METER
RATIO
COMPRESSION
1 20
4 7
83
102
65
-
dB+
THRESHOLD
20 20
0
6
10
-
10
1615
3+2
DESIGN
AVALON
0
1
2
3
3
2
1
+
-
CLASS A PROGRAM EQUALIZER LEVEL
SIGNAL
-
dB+
OUTPUT
0
20 6
2 2
34
48
11
EQUALIZER
R
dB
L
30
0
24
18
12
+
-
12
6
6
18
24
30