Rolls RA2100b Specifications
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1
RA2100b Power
Amplifier
The RA2100b
is an ideal installation amplifier for
small to medium sized applications
.
The unit is built
solid and housed in a painted steel chassis. It also
includes special high performance transformers and
a fused power line. The MOSFET output stage is
fault protected which allows the R2100b to forgive
momentary output shorts. It is designed to drive 4 or
8 Ohm speakers, 25V speakers (individual channels)
or 70V speakers (in bridged mode). CAUTION: The
2100b is convection cooled. Adequate ventilation
room for the heat sink fins on the rear panel must
be provided for.
FEATURES:
• Great install amp, drives 25V or 70V lines
directly.
• MOSFET drivers in a voltage and current gain
circuit
• 1 second turn-on delay
• LED power output meters
• Fault protected outputs
SPECIFICATIONS
Power Output Stereo: 100 Watts RMS/ch. 4 Ohms
85 Watts RMS/ch. 8 Ohms
Bridged: 200 Watts RMS into 8 Ohms
or 70V
Sensitivity: <1 VRMS for full output
THD: <.08% (1kHz @ 1 Watt)
S/N Ratio: 106 dBU
Power Bandwidth: 60 Hz - 30 kHz +/- 1dB
Damping Factor: > 150
Slew Rate: 100 Volts/microSecond
Phase Shift: <10 Deg., 20Hz - 20kHz
Input Impedance: 10 K Ohms Balanced
Power: 120 VAC 60Hz 2.5A
230 VAC 50Hz
Size: 19” x 3.5” x 7.5”
(48 x 9 x 19 cm)
Weight: 12 lbs (5.5 kg)
ROLLS Coporation
5968 South 350 West, Salt Lake City, UT 84107
(801) 263-9053 FAX (801) 263-9068
[email protected] • www.rolls.com
WATTS 4 OhmsWATTS 4 Ohms
VOLUME 1
RA2100b
M
OSFET
P
OWER
A
MPLIFIER
POWER
PROTECT
0 10
VOLUME 2
0 10
MADE IN U.S.A.
RISQUE DE CHOC - NE PAS ENLEVER
SERIAL NUMBER
WARNING:
To reduce the risk of electric
shock or fire do not expose
this device to rain or moisture.
CHANNEL 2 INPUT
CHANNEL 1 INPUT
BRIDGE NORMAL
OUTPUT 2 OUTPUT 1
4A 120V
2A 230
V
OUT 1
-
-
+
+
MAINS POWER
WARNIN
G
For continued protection against
risk of fire, replace only with
same type and rating of fuse.
CAUTION
TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT NOT REMOVE LID. NO
USER SERVICABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
CORPORATION
OUT 2