3. GENERAL DESCRIPTION
TOA’s Basic Amplifiers A-2030, A-2060, A-2120 and A-2240 are high cost-performance mixer power
amplifiers suited for broadcasting paging or background music in schools, offices, shops, factories,
mosques, churches and large rooms
.
4. FEATURES
•
High durability, high reliability, and high cost performance.
•
Three microphone inputs, two AUX inputs, and one recording output.
•
Speaker output of constant voltage distribution system (70V or 100V) and low impedance (4
Ω
).
•
Operates on both AC and DC power.
• Muting function.
•
Independent input volume controls and master volume control.
•
Independent tone controls of boost and cut type for both high and low frequencies.
•
MIC 1 input is equipped with a 5-pin DIN connector to provide muting control.
•
MIC 1 with phantom power for condenser microphones.
•
Current limiter circuitry protects transistors, and the thermal protection circuitry prevents a failure
due to overheat.
•
All MIC inputs are electronically-balanced input.
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