The TOA A-2120 H Mixer Amplifier is a reliable commercial audio amplifier designed for background music and paging applications in professional PA systems. Manufactured by TOA Corporation, this mixer amplifier delivers 120 watts of output power, making it suitable for driving multiple speakers in 70V/100V distributed audio systems used in schools, offices, retail stores, mosques, and public facilities.
The A-2120 H combines a multi-input mixer and power amplifier in a single compact unit, allowing easy connection of microphones and audio sources such as media players or mixers. With three microphone inputs and two auxiliary inputs, the amplifier provides flexible connectivity for both announcements and background music playback.
Designed for professional installations, the amplifier supports 70V and 100V line speaker outputs as well as 4-ohm low-impedance speakers, making it compatible with a wide range of commercial loudspeakers. The system includes priority muting for microphone input, ensuring that important announcements override background music when necessary.
The front panel features independent volume controls, bass and treble tone adjustments, and LED status indicators for easy monitoring and operation. Built with TOA’s proven reliability, the A-2120 H includes protection circuits against overheating and overload conditions, ensuring stable operation in demanding environments.
With its simple operation, durable construction, and versatile connectivity, the TOA A-2120 H mixer amplifier is an excellent choice for installers looking for a dependable PA amplifier for small to medium commercial audio systems.
Features
- 120W mixer amplifier for commercial PA systems
- Supports 70V / 100V distributed speakers and 4Ω speakers
- 3 microphone inputs and 2 auxiliary inputs
- Priority muting function for paging announcements
- Bass and treble tone control for sound adjustment
- Independent volume controls for each input
- Standard 6.3 mm microphone input connectors
- Thermal and overload protection circuits
- Compact rack or shelf-mount installation
- Ideal for background music and public address systems
Specifications
| Specification | Details |
|---|---|
| Product Model | TOA A-2120 H |
| Amplifier Type | Mixer Amplifier |
| Rated Output Power | 120 W |
| Speaker Outputs | 70V / 100V / 4Ω |
| Frequency Response | 50 Hz – 20 kHz |
| THD | < 1% at rated output |
| Signal-to-Noise Ratio | 60 dB (MIC), 80 dB (AUX) |
| Inputs | 3 × Mic, 2 × AUX |
| Microphone Connector | 6.3 mm Phone Jack |
| Tone Control | Bass and Treble |
| Priority Function | Mic 1 Priority Muting |
| Power Supply | 220–240 V AC, 50/60 Hz |
| Power Consumption | Approx. 230 W |
| Dimensions | 420 × 100.6 × 367 mm |
| Weight | Approx. 10.3 kg |
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