Rolls RA900 User Manual

CHANNEL B

CLIP

PROTECT

CHANNEL A

SIGNAL

RA900

0 10

POWER

0 10

CAUTION

MINIMUM LOAD IMPEDANCE

2 OHMS PER CHANNEL

4 OHM BRIDGE

AMP MODE

A

LOW

4
23

BAL

BA

INPUT

1

LOW

B

FUSE

15A/120V

STEREO BRIDGE

CUT FILTER

ON=30Hz

OFF=50Hz

3

4

2

1

- BRIDGE MONO +

ON=30Hz

OFF=50Hz

CUT FILTER

GROUND

Channel A

Channel B

R A900 Power Amplifier

The R A900 Power Amplifier is a t wo channel amp with

two 410 wat t RMS - 4 ohm outputs via 1/4" jacks or 5-

way binding posts. It may be bridged and connected to a

4 or 8 ohm load supplying up to 1100 Watts or 850 Watts

respectively. The unit is housed in a painted steel chas-

sis and includes a special high performance t ransformer,

and a fused power line.

The R A900 is ideal for DJs, musicians, or other sound

reinforcement applications like powering front-of-house

speakers or monitors.

SPECIFICATIONS

Power Output, Stereo: 570 W RMS/ch. 2Ω

410 W RMS/ch. 4 Ω
260 W RMS/ch. 8 Ω

Bridged: 1100 Watts RMS 4 Ω

850 Wat ts RMS 8 Ω

Input Connectors: 1/4" TRS balanced and XLR balanced

Output Connectors: 1/4" and 5-way binding posts

Sensitivit y: 0.9 V rms 0 dB V

LIFT

THD: <.05% (20Hz - 20 kHz)

@ rated output, 8 Ω)

Frequency response: @ 1 Watt rms 8 Ω ; 10Hz to 40kHz

@ rated output, 8 Ω ; 20Hz to 20kHz

Hum and Noise: 100 dB, unweighted

Power Consumption: 7A and 120 VAC

Cooling System: 2 speed fan

Transformer: Toroidal

Size: 19" x 3.5" x 15.9"

Weight: 31 lbs (14 kg)

(48.3 x 8.8 x 40.5 cm)

POWER

A

THRU

INPUT

1

-

+

B

-

3

2

+

POWER AMPLIFIER

ROLLS Coporation

5143 South Main Street, Salt Lake City, UT, 84107

[phone] FAX [phone]

[e-mail] • www.rolls.com