INTRODUCTIONThank you for your purchase of the ROLLS RA63 Distribution Amplifier. This unitwill distribute six high-level balanced lines in a sound distribution system. Thescrew terminals on the rear panel are for input and output, and each output maypower more than one line. The unit is intended for professional applications andhas a FR4 double sided circuit board and painted steel chassis.FEATURES• 6 Distribution outputs on barrier strips• Screw driver adjustable front panel volume controls• Balanced inputs and outputs• Clean, quiet operationDESCRIPTIONFRONT PANEL
PWR
+ 20 dB
0 dB
CH 1 CH 2 CH 3 CH 4 CH 5 CH 6
4) $! >
VOL 1 - 6: These screwdriver adjustable controls adjust the level of output signalfor each indicated output.+20dB/0dB Switch: Pressing this switch in provides 20 dB of gain to the inputsignal.PWR: LED indicating the unit’s power status.REAR PANEL120 VAC
50/60 Hz 15 VA
MADE IN U.S.A.
MODEL RA63
SERIAL NUMBER
63-
NRTL /C
-+
INPUTCH 6
-+-+
CH 5CH 4
-+-+
CH 3CH 2
-+-+
CH 1
12 VAC
RISQUE DE CHOC - NE PAS ENLEVER
WARNING:
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK.
NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
120 VAC 50/60 HZ 15 VA: Power Cord. Connect to a properly grounded ACsource.12 VAC: These two terminals provide 12 volts of ac current. These are availablefor connection to low power accessory units.INPUT: These three terminals, labeled + for the positive or “hot” connection, - f orthe negative connection, and the ground symbol for earth ground connection arefor connection to the balanced or unbalanced input signal to be distributed.CH6 - CH1: For each channel; the two terminals labeled + for the positive or “hot”portion of the output signal, and the - for negative or neutral portion. The groundsignal indicates the terminal to be connected to earth ground. This terminal maybe lifted in the event of ground loops.INSTALLATIONInstall the RA63 in a standard 19” rack. The unit is intended for installations whereseveral zones or areas need to be controlled and a high level balanced signal isrequired to drive the input lines.SPECIFICATIONSInput Impedance: 100 KΩ balancedMax Input Level: +22 dBVI/O Connectors: Screw terminal; +. -, and groundOutput Impedance: 50 Ω balancedMax Output Level: +24 dBMax Gain: 20 dBS/N Ratio: >90 dBTHD: <.008%Power: 120 VAC 50-60 Hz, 15VASize: 19 x 1.75 x 6.5(48 x 4.5 x 17 cm)Weight: 7 lbs. (3 kg)SCHEMATICROLLS CORPORATION
5968 South 350 West
Salt Lake City, UT 84107
RA63.SCH Rev:
A
Sheet 1 of 1
Ba
+12
+12
-12
+12V-12V+12
-12
+12
-12
+12
-12
+12
-12
+12
-12
PO W E R
C H 1
C H 2
C H 3
C H 4
C H 5
C H 6
12 V A C
O U T
+I N
-IN
C IR C U IT
G R O U N D
20 dB
BO O S T
R 2
51 C 1
C 2
10 U
R 1
10 K
2
31
4
U 1 A
45 6 0
R 3 1 0 K
6
57
8
U 1 B
45 6 0
C 3
12 0 P F
R 4
51
D 1 1 N 4 0 0 1
D 3 1 N 4 0 0 1
D 4
1N 40 0 1
D 5
LD SG
4. 7 K
D 2 1 N 4 0 0 1
R 9 4. 7 K
SW 2
SW S PS T
PL 1
PL UG A C M AL E
T1
M CI 407 40 24
R 7
10 K
R 5
10 K
6
57
8
U 7 B
45 6 0
C 6
12 0 P F
C 7 1 2 0 P F
R 8 1 0 K
R 6 1 0 K
C 8
10 2
2
31
4
45 6 0
R 1 2 1 0 K
R 1 3
10 K
10 0 K
C 9 1 2 0 P F
12
3
D PD T
2
31
4
U 1 A A
45 6 0
6
57
8
U 1 A B
45 6 0
2
31
4
U 1 B A
45 6 0
6
57
8
U 1 B B
45 6 0
2
31
4
U 1C A
45 6 0
6
57
8
U 1C B
45 6 0
2
31
4
U 1D A
45 6 0
6
57
8
U 1D B
45 6 0
2
31
4
U 1 E A
45 6 0
6
57
8
U 1 E B
45 6 0
R 2 A 51
R 4 A
51
C 3 A
12 0 P F
C 2 A
10 U
R 2 B
51
R 4 B
51
10 U
C 3 B
12 0 P F
R 1 B
10 K
C 3 C
12 0 P F
10 U
R 1 D
10 K
C 3 D
12 0 P F
51
51
C 3 E
12 0 P F
51
1
O UT +
4
O UT +
2
O UT -
3
5
O UT -
1
4
2
3
G N D
5
1
4
2
3
5
1
2
3
4
5
R 3 A
10 K
C 1 A
R 3 B 1 0 K
C 1 B
C 1 C 1 0 U
R 3 C 1 0 K
R 4 C
51
R 2 C 51
R 1 C
10 K
R 3 D 10 K
R 2 E 5 1
R 3 E 1 0 K
R 1 E
10 K
R 1 A
10 K
P5
10 K
P6
10 K
P1
10 K
P2
10 K
P3
10 K
P4
10 K
C 4
C 5
R 2 D C 1 D
10 U
R 4 D
C 2 D
10 U G N D
C 1 E 1 0 U
R 4 E C2 E
10 U
S1 A
R 1 1
U 7 A
-1 2
R 1 0
10 00 UF 16 V
C 1 0
50 3
10 00 UF 16 V
Date: 31-Jul-2000
Size Document Number:
Title: RA63 DISTRIBUTION AMPLIFIER
C2C
OUT -
OUT +
GND
OUT -
OUT +
OUT -
OUT +
10 U
OUT -
OUT +