Ab international 900 a brochure

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ab international 900 a brochure

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Page 1

4.5

Audio Equipment

Model 900A
&

Model 1100A

CHANNEL ONE LEVEL

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The AB lnt-l models 900A/1100A are both a
two channel stereo amplifier. The compact
(three rack unit) instruments feature
individual channel level controls, with signal
and clip LED indication, 1/4- jack inputs
(unbalanced), XLR inputs (balanced),
ground lifi switch, and a Dual / Bridge
switch.

The 900A delivers 350 Watts per channel
into 8 Ohms, 590 Watts per channel into 4
Ohms and 775 Watts into 2 Ohms 20Hz-
ZOKHZ at < .l% distortion.

The 1100A delivers 525 Watts per channel
into 8 Ohms, 850 Watts per channel into 4
Ohms and 1100 Watts per channel into 2
Ohms at < .l% distortion.

Both units employ only 20dB of negative
feedback to reduce forward transfer
distortion components to minimum levels.
VI energy limiters are incorporated for

short- circuit protection and a thermal sensor
prevents an over-temperature condition,
Other features include - Sofi Clip- speaker
protection circuitry, selectable input
sensitivity, and a fully modular construction
for service accessibility. The 1100A
incorporates an internal, dual speed fan for
cooling. The 900A features convection
cooling.

Both AB lnt-l Models features the -Logic
Operated Gated Output- supply system.
Dual tri-level supplies that gate the
operating voltages around the output
waveform power high current, fully
complimentary output stages. This is used to
control and eliminate unused and inefficient
headroom.

Both units operate from 100-240V 50-60Hz
AC mains and measures 5-%- high (three
rack unit), 19- wide and 11-7/8- deep.