Rolls RA163 specifications Introduction, Description Front Panel, Installation, Schematic

INTRODUCTION

Thank you for your purchase of the ROLLS RA163 Distribution Amplifier. This unit will distribute a mono signal to eight outputs, or a stereo signal to four right and four left outputs. The outputs are designed to drive high-level balanced lines in a sound distribution system.

NOTE: THIS MANUAL ASSUMES THE USER HAS A BASIC WORKING KNOWLEDGE OF AUDIO ELECTRONICS, BALANCED AND UNBALANCED CONNECTIONS, AND PROPER SIGNAL LEVEL SETTING.

DESCRIPTION

FRONT PANEL

STEREO 1

2

LEFT

3

4

1

2

RIGHT

3

4

DISTRIBUTION

SWITCH

GAIN

+20 dB

AMPLIFIER PRO PLUS

CONFIGURATION

0 dB

MADE IN USA

STEREO MONO

pwr

8 Channel Mono

RA163

www.rolls.com

2X4

1X8

4 Channel Stereo

MONO 1 2 3 4 5 6 7 8

Mono 1 - 8 / Stereo 1 - 4: These volume controls vary the level of signal for each indicated output.

+20dB/0dB Gain switch: Depressing this switch provides 20 dB of gain to the input signal.

pwr: LED indicating the unit’s power status.

STEREO/MONO CONFIGURATION

Use the 2X4 - 1X8 switch to change the stereo/mono configuration of the RA163. Follow the silk screening on the unit for proper connection.

REAR PANEL

SERIAL NUMBER	120 VAC 50/60 Hz 15 VA	MONO INPUT	8	7	6	5	4	3	2	1	MONO
MODEL RA163
MADE IN USA

www.rolls.com
CAUTION	INPUTS	OUTPUTS
RISK DO NOT OPEN
OF ELECTRIC SHOCK

WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. TO
REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER. NO
USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED	RIGHT	LEFT	4	3	RIGHT	2	1	4	3	LEFT	2	1	STEREO
SERVICE PERSONNEL. RISQUE DE CHOC - NE PAS ENLEVER

120 VAC 50/60 HZ 15 VA: IEC Power Connector - Connect to the power cord, and to a properly grounded AC source.

INPUTS Right/Mono and Left: Balanced XLR jacks.

MONO 1 - 8, STEREO 1 - 4: Balanced XLR output jacks.

________________________________________________________________

INSTALLATION

Install the RA163 in a standard 19” rack. The unit is intended for installations where several zones or areas need to be controlled and a high level balanced signal is required to drive the input lines.

SCHEMATIC

J1

J2

M

M

XLR JACK M

XLR JACK M

XLR JACK

2

1

2

1

XLR JACK

D5 LDSG

POWER

Rev: A

1 of 1

2

1

2

1

J3

C4110U J4

10UC11

3

10U

C21

3

C22

10U

10UC31

3

C32

10U

3

C42

4.7K

16V

51

R1451 C12

10U

51

51

51

51

10U

1000UF 16V

C10

503

ROLLSCORPORATION

5968 S 350 W MURRAY, UT 84107

RA163 BALANCED DISTRIBUTIONAMP

Date: 1 JULY 2009Sheet

R12

120PF

R24

51

R32

7

R34

120PF

R42

7

R44

+12V

R4

C4

1000UF

-12V

7

7

8

8

8

8

4560

U1B

10K

+12

4560

U2B

4560

6

U3B

10K

+12

4560

U4B

503

C19

1N4001

+12

6

5 C13

R13 R2251

6

5 C23

120PF

10K

R23

+12

R31

5 C33

R33

1 6

5 C43

120PF R4310K

C18

1N4001D1

503

1N4001D2

1N4001D3

C5

D4

C20

503

Title

DocumentNumber:Size:

RA163.SCHBa

R11

10K

R21

10K

1

10K

R41

10K

812

1

1

U1A

4560

-12

U2A

4560

-12

4560

U3A

4

-12

4560

U4A

-12

T1

ROLLS P/N

+12V

C3 503

-12V

4

4

4

2

3

P1 10K

2

3

P2

10K

2

3

P3

10K

2

3

P4 10K

+12V +12V

C1 C2

503 503

-12V -12V

CH 1

CH 2

CH 3

CH 4

CIRCUIT GROUND

SW2

SW SPST

AC MALE

S1B

DPDT

MONO

1X8 SW2 SPST

J5 XLR JACK M

J6 XLR JACK M

J7 XLR JACK M PL1

PLUG

J8 XLR JACK M

5

100K

120PF

4560

1

3

1

2

2

1

2

1

2

1

2

1

R1

C18

U9A

-12

4

S1A

100K

2X4

C5110U

120PF

12

3

C62

10U

3

C82

10U

4

6

2 DPDT R9

C9

4560

1

DUAL

4

-

51

R54

C52

10U

C61

10U 3

R64

51

C7110U

R74

C72

10U

C81

10U

3

R84

51

BOOSTdB20

R3

10K

10KR2

2

3

dB20 BOOST 1

3

U10A

R52

51

120PF

R6251

120PF

R72

51

51

120PF

R8251

120PF

7

R17

10K

R16 10K

2

3

7

7

7

7

10K

7

4560

4560

R8

4560

R15 10K

4560

8

U9B

8

U10B

8

U5B

8

U6B

8

U7B

8

U8B

120PFC16

+12

R5 10K

120PF

+12

R10 10K

+12

6

5 C53

R5310K

+12

4560

6

5 C63

R6310K

+12

6

5 C73

R7310K

+12

4560

6

5 C83

R8310K

6

5

C7

6

5

10K

102

102

10K

R7

C8

C14

1

10K

1

1

10K

1

10K

R610K

C6

120PF

10K

R1810K

C15 120PF

R51

U5A

4

-12

R61

4560

U6A

-12

R71

U7A

-12

R81 4560

U8A

4

-12

1U

1U

C26

J10

C25

3

1U

XLRJACKF

R19 C24

J9

C17

3

1U

XLRJACKF

5

4560

2

3

P5

10K

6

2

3

P6 10K

7

4560

2

3

P7

10K

8

2

3

P8 10K

2

1

2

1

CH

CH

CH

CH