TOA
900
SERIES
3-CHANNEL MIXER POWER
AMPLIFIER
(10-WATT)
A-901A
Features
1. Output power: 10 watts RMS
2. Wide frequency response: 20 to 20,000Hz,
±1 dB
3. Low distortion and noise level
4. Excellent output regulation
5. Bass and treble controls for Input #1 and
Program Input
6. Incorporates muting function
7. Built-in protection circuitry when heatsink
temperature overheats
8. Separate output terminals for 4 and
8 ohms, 25 and 70 volts
9. Full range of plug-in modules
10. Can be rack mounted
Description
The TOA A-901A Mixer Power Amplifier controls and
mixes up to three independent input signals. The A-901A
delivers up to 10 watts of output power.
Thirty five optional accessory modules are available to
allow the A-901A amplifier to be configured for a variety
of applications. Edge connectors on the rear of the units
permit TOA modules to be easily inserted for use.
Modules include the M Series microphone preamplifiers,
available with muting, remote volume control, voice gate
and compressor options. The U Series auxiliary
preamplifiers, available with muting, remote volume
control and compressor options. The R-01R magnetic
phono preamplifier. The B Series bridging transformers,
available with muting option, the L Series line matching
transformers, available with muting option, the S Series
signal generator modules and the l-01S Exes interface
paging module. The T-02S module featuring auxiliary
input and balanced line output is also available for music-
on-hold.
For detailed module specifications, please refer to
publication TOA 900 Series Module Specifications,
Features and Connector Chart.
The A-901A has input and output terminals to match 4- or
8-ohm speaker systems and 25 or 70-volt speaker
distribution systems. A rack mounting bracket is available.
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