This is the 2 pages manual for ab international 900 a brochure.
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CHANNEL ONE LEVEL
CHANNEL TV-ėIO LEVEL
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1.on mo com"
The AB lnt-ôl models 900A/1100A are both a
two channel stereo ampliÔ¨Āer. The compact
(three rack unit) instruments feature
individual channel level controls, with signal
and clip LED indication, 1/4-Ě jack inputs
(unbalanced), XLR inputs (balanced),
ground liÔ¨Ā switch, and a Dual / Bridge
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 -ú SoÔ¨Ā Clip-Ě 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
Both AB lnt-ôl Models features the -úLogic
Operated Gated Output-Ě 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 inefÔ¨Ācient
Both units operate from 100-240V 50-60Hz
AC mains and measures 5-%-Ě high (three
rack unit), 19-Ě wide and 11-7/8-Ě deep.