Rolls RA200 User Manual
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free from
defects in materials and workmanship under normal installation, use and service for a
period of one (1) year from the date of purchase as shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited to repair
or replacement (at our option), during the warranty period of any part which proves
defective in material or workmanship under normal installation, use and service, provided
the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by
a copy of the purchase receipt. In the absence of such purchase receipt, the warranty
period shall be one (1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number,
improper electrical voltages or currents, repair, alteration or maintenance by any person or
party other than our own service facility or an authorized Service Center, or any use
violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, obligations or
liabilities. ANY IMPLIED WARRANTIES, OBLIGA TIONS, OR LIABILITIES,
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE
LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN
LIMITED WARRANTY. Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL
OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER
WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow
the exclusion or limitation of special, incidental or consequential damages so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.
RA200
100 WATT/CHANNEL
POWER AMPLIFIER
VOLUME 1 VOLUME 1
0 10 0 10
1 5 30 10 0
WATTS
1 5 30 10 0
WATTS
PROTECT
ROLLS CORPORATION
SALT LAKE CITY, UTAH
6/99
ROTECT
POWER
RA200
M
OSFET POWER
A
MPLIFIER
OWNERS MANUAL
INTRODUCTION
Thank you for your purchase of the R OLLS RA200 Power Amplifier. The RA200 is
a stereo 100 W att per channel MOSFET pow er amplifier. It bridges to 200 W atts
into eight ohms. It is intended f or prof essional audio applications such as recording studios and small live performances.
INSPECTION
1. Unpac k and inspect the RA200 bo x and pac kage.
If obvious physical damage is noticed, contact the carrier immediately to make a
damage claim. We suggest saving the shipping carton and packing materials f or
safely transporting the unit in the future.
2. Please complete the Warranty Registration Card and return it to the factory .
INSTALLATION
Connect the power cord to an AC pow er source , connect the input to the signal
source and to the RA200 via the RCA or 1/4” input jacks . Speakers may be
connected by using the 1/4” output jac ks , or the dual banana posts. Turn the
V olume controls fully countercloc kwise (off), and turn on the power s witch, the
power LED should light. With the program material running, slowly increase the
V olume controls until the desired le v el of sound is present. There is a one second
turn-on delay provided to prevent possib le speak er damage in case all equipment
is on a signal power strip.
4A 120V - 2A 230 V
MAINS POWER
OUTPUT 2
WARNING
For continued protection against
risk of fire, replace only with
same type and rating of fuse.
RISQUE DE CHOC - NE PAS ENLEVER
OUTPUT 1
-
OUTPUT 1
+
+
OUTPUT 2
-
SERIAL NUMBER
MADE IN U.S.A.
CHANNEL 2 INPUT
CHANNEL 1 INPUT
BRIDGE NORMAL
C O R P O R A T I O N
CAUTION
TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT NOT REMOVE LID. NO
USER SERVICABLE PARTS INSID E .
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
WARNING:
To reduce the risk of electric
shock or fire do not expose
this device to rain or moisture.
BRIDGING
To bridge the RA200, first ensure the power is off. Move the Bridging switch to the
“Bridge” position. The Channel 1 Volume control will be the master v olume,
Channel two Volume is inactive.
Connect the input to Channel 1 input, then connect the load (speakers) to the two
positive (red) banana jacks. Make no connections to the black posts. The level
meters will both light, and the output power into 8 ohms is the sum of the LEDs
that light.
F AULT PRO TECTION
The fault protection in the RA200 limits the current to the output stage in the
faulted channel and turns on all the LEDs in that channel. This mode is entered
whenever the output stage is called upon f or too much po wer, it may also be
fooled by impedances low er than f our ohms - which ma y cause the output stage
to overheat and burn up the MOSFETs.
Since the RA200 is convection cooled, the unit radiates heat from the rear panel
and , depending on the load demand, it may become very hot if drawn upon
heavily.
SPECIFICATIONS
Po wer Output, Stereo: 100 Watts RMS/ch. 4 W
70 Watts RMS/ch. 8 W
Bridged - 200 Watts RMS 8 W
Input Connectors: 1/4" TRS balanced and RCA
Output Connectors: 1/4" and 5-way binding posts
Sensitivity: <1 VRMS f or full output
THD: <.08% (1kHz @ 1 W att)
S/N Ratio: 106 dBU
Po w er Bandwidth: DC - 30 kHz +/- 1dB
Damping Factor: > 150
Slew Rate: 100 Volts/microSecond
Phase Shift: <10 Deg., 20Hz - 20kHz
Input Impedance: 10 KW Balanced
Po we r: 120 VAC 60Hz 2.5A
230 V AC 50Hz
Size: 19” x 3.5” x 7.5”
(48 x 9 x 19 cm)
Weight: 12 lbs (5.5 kg)
SCHEMATIC
R5
33K
R1
C1
.001
R2
C2
10K
470PF
R3
1K
R45
1K
C7
.001
R44
10K
C8
470PF
Vr+
R90
10K
PROTECT
R91
10K
Vr-
SW1
F5
SW SPST
1458
2
U1A
3
4
VrR4
33K
1M
R47
33K
1458
2
U2A
3
4
VrR46
33K
D26
1N4148
D24
LDRR
Q30
2N3904
R92
1M
T1
MAINS TRANSFORMER
Lo Cut
1
1
23
C3
.01
Vr+
J113
C17
1U
R105
Vr-
Lo Cut
1
1
2
C9
.01
P101
P100K
CP8010
2
3
P1
P100K
R6
1K
C4
Q1
120PF
R103
1M
D25
1N4148
R104
1M
H1E
Q15
R50
J113
470
1
2
H1A
H1B
R48
H?A
H?A
1K
HCN2
HCN2
SW2B
C10
DPDT
120PF
4
1
1
NORMAL
5
6
BRIDGE
SET P2 & P102 FOR 1 - 2 mV ACCROSS R11 & R111
V+
C18
4
503
R93
3.3K
1
BR1
V-
3
R9
10K
R8
C5
470
Vr+
50PF
8
1458
6
7
U1B
5
R7
100K
4
H1D
H?A
HCN2
1
2
3
1
1
SW2A
DPDT
H?A
HCN2
5
R51
R52
10K
10K
C11
50PF
Vr+
Vr+
8
R54
1458
10K
6
7
U2B
5
R53
1K
R49
100K
R55
6.8K
P102
500
Q16
2N3904
R56
R57
1K
150
R58
10K
Vr-
R98
1K
Q31
C13
6800UF
C14
6800UF
2N3904
R99
R94
22K
D22
10K
D21
RED
ZD12V
R95
-12V
1K
Q32
Vr-
R96
2N3906
D23
10K
C15
ZD12V
10U
12V
V+
F1
R18
.1
Vr+
R11
6A
10K
1K
R10
R12
6.8K
P2
500
R13
1K
6A
Vr+
C16
10U
Vr-
V+
Q2
2N3904
R14
150
R15
10K
F3
LAST R72 C15
Q3
2N3906
R16
150K
R17
150K
Q7
2N3904
F2
6A
V-
1N4148
R61
.1
2N3906
Q17
D11
R63
R62
470
R59
150K
R60
150K
R71
D12
1N4148
R72
Q24
2N3904
F4
V-
6A
R21
10K
R19
R20
470
1K
D1
1N4148
R22
R23
2K
22K
Q4
MPSA06
D2
R25
1N4148
330
R26
330
Q8
MPSA56
R28
R29
D3
2K
22K
1N4148
470
R30
R32
1K
R31
R33
.1
10K
R65
1K
R67
R66
10K
22K
2K
Q18
Q19
MPSA06
2N3904
R64
330
C12
R69
R70
330
100
Q21
MPSA56
R75
51
2K
R73
22K
R74
Q22
10K
1K
R76
2N3906
470
.1
R77
D4
D5
1N4148
1N4148D61N4148
Q6
IRF9540
Q5
2N3904
R24
51
C6
.002
R34
51
Q9
2N3906
R68
51
.002
H4A
1
H4B
HD42
H4C
R27
HD43
100
H4D
HD44
Q10
HD4
IRF540
HEATSINK
D14
D16
D15
1N4148
1N4148
1N4148
Q20
IRF9540
Q23
IRF540
HEATSINK
D13
1N4148
R35
10K
R36
10K
R37
100K
R38
10K
R39
100K
R40
10K
R41
100K
2N3904
R42
33K
V+
R78
10K
2N3904
R79
10K
R80
100K
2N3904
R81
10K
R82
100K
2N3904
R83
10K
R84
100K
2N3904
R85
33K
V+
Title
Size: Document Number:
Date:
R102
4.7K
Q11
2N3904
D7
LDRY
2N3904
Q12
D8
LDRG
2N3904
Q13
D9
LDRG
Q14
D10
LDRR
R100
4.7K
Q25
D17
LDRY
Q26
D18
LDRG
Q27
D19
LDRG
Q28
D20
LDRR
ROLLS CORPORATION
5968 S 350 W
Murray, UT 84107
RA200 Amp Board
Rb
ra200.sch C
22 August 2002
J1
J4A
RCAX2
3
J4B
RCAX2
3
J2
R87
22K
R101
THERMISTOR
10K@23c
PLUG AC MALE
CHANNEL 2
t
CHANNEL 1
10K
1
2
R43
10K
R88
10K
Q29
2N3904
R89
470
4 AMP
J3
V+
1
5
32
100
V+
1
5
32
100
Rev:
1
1
of
Sheet
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