Crown Com-Tech CT-1600 - Wiring for Parallel-Mono 70 Volt, Bridge-Mono 8;4 Ohm and Parallel-Mono 8;4 Ohm Modes

Page 16
Com-Tech 200/400/800/1600 Power Amplifiers
COM
+
–
+
70 VOLT STEP-DOWN
TRANSFORMERS
16, 8, OR 4 OHM
16, 8, OR 4 OHM
70 VOLT LINE
MIXER
Com-Tech Amplifier
CHANNEL 1
PARALLEL-MONO
70 VOLT MODE
TURN OFF THE AMPLIFIER
BEFORE CHANGING
THE DUAL/MONO SWITCH.
TURN OFF THE AMPLIFIER
BEFORE CHANGING THE
OUTPUT MODE SWITCHES.
WARNING: BOTH CHAN-
NELS MUST BE SET
TO 70 VOLT MODE.
COM
+
–
+
NOT USED
CHANNEL 2 IS NOT USED
IN PARALLEL-MONO MODE.
BRIDGE
MONO
DUAL
PARALLEL
MONO
BB
Programmable
Input Processor (P.I.P.)
–+
CH-2 INPUT
–+
CH-1 INPUT
70
VOLT
70
VOLT
8/4
OHM
8/4
OHM
CH1
CH2
CH-2 CH-1
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
P
R
E
S
S
R
E
S
E
T
PUSH TO RESET
LOUDSPEAKERS
ADD A 14 GAUGE OR
LARGER JUMPER
BETWEEN THE CHAN-
NEL 1 AND 2 POSI-
TIVE (+) TERMINALS.
ADD A 14 GAUGE OR
LARGER JUMPER
BETWEEN THE CHAN-
NEL 1 AND 2 POSI-
TIVE (+) TERMINALS.
CHANNEL 2 IS NOT USED
IN PARALLEL-MONO MODE.
MIXER
LOUDSPEAKER
Com-Tech Amplifier
CHANNEL 1
PARALLEL-MONO
8/4 OHM MODE
TURN OFF THE AMPLIFIER
BEFORE CHANGING
THE DUAL/MONO SWITCH.
–
+
NOT USED
BRIDGE
MONO
DUAL
PARALLEL
MONO
BB
Programmable
Input Processor (P.I.P.)
–+
CH-2 INPUT
–+
CH-1 INPUT
70
VOLT
70
VOLT
8/4
OHM
8/4
OHM
CH1
CH2
TURN OFF THE AMPLIFIER
BEFORE CHANGING THE
OUTPUT MODE SWITCHES.
WARNING: BOTH CHAN-
NELS MUST BE SET
TO 8/4 OHM MODE.
CH-2 CH-1
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
P
R
E
S
S
R
E
S
E
T
PUSH TO RESET
Fig. 3.7 Wiring for Parallel-Mono 70 Volt, Bridge-Mono 8/4 Ohm and Parallel-Mono 8/4 Ohm Modes
DO NOT
USE
MIXER
LOUDSPEAKER
Com-Tech Amplifier
CHANNEL 1
BRIDGE-MONO
8/4 OHM MODE
TURN OFF THE AMPLIFIER
BEFORE CHANGING
THE DUAL/MONO SWITCH.
–
+
BRIDGE
MONO
DUAL
PARALLEL
MONO
BB
Programmable
Input Processor (P.I.P.)
–+
CH-2 INPUT
–+
CH-1 INPUT
70
VOLT
70
VOLT
8/4
OHM
8/4
OHM
CH1
CH2
TURN OFF CHANNEL 2 (CCW)
IN BRIDGE-MONO MODE.
CH-2 CH-1
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
0
dB
.5
1
2
3
4
5
6
7
8
910
11
13
15
17
19
21
25
32
∞
TURN OFF THE AMPLIFIER
BEFORE CHANGING THE
OUTPUT MODE SWITCHES.
WARNING: BOTH CHAN-
NELS MUST BE SET TO
8/4 OHM MODE.
P
R
E
S
S
R
E
S
E
T
PUSH TO RESET
DO NOT USE THE
OUTPUT GROUND
TERMINALS.