The TOA A-3212DM is a 120W digital mixer amplifier with a built-in media player for USB, SD card, FM radio and Bluetooth audio. It drives 100V line or 4 ohm speakers and has four microphone inputs and two AUX inputs, so one unit covers paging and background music without a separate music source. It suits shops, offices, schools, churches and function rooms.
120W
Rated output
USB / SD / FM
Media player
Bluetooth
Streaming
100V / 4Ω
Output
Features
120W rated output
100V line or 4 ohm speaker output, selectable
Media player: USB, SD/MMC card (up to 32 GB), FM radio and Bluetooth
4 balanced mic inputs and 2 AUX inputs
MIC 1 switchable to RJ45 for a chime microphone
MIC 4 switchable to AUX 1
+21V phantom power for condenser microphones
Master and input volume controls, bass and treble ±10 dB
Record output on RCA
Specifications
| Rated output | 120W |
| Speaker output | 100V or 4 Ω, screw terminals |
| Media player | USB, SD/MMC (up to 32 GB), FM radio, Bluetooth |
| Frequency response | 50 Hz to 20 kHz |
| Distortion | 1% max (1 kHz, 1/3 rated output) |
| S/N ratio | 60 dB min |
| Mic inputs | 4 x 1 mV (-60 dBV), 600 Ω, balanced, phone jack |
| AUX inputs | 2 x 100 mV (-20 dBV), 10 kΩ, unbalanced, RCA |
| Rec out | 0 dBV, 600 Ω, unbalanced, RCA |
| Power source | 100 to 240V AC, 50/60 Hz |
| Power consumption | 44W (1/8 maximum output) |
| Operating temperature | 0 to +40°C |
| Finish | ABS resin, steel plate |
| Dimensions (W x H x D) | 420 x 100.9 x 357 mm |
| Weight | 5.1 kg |





