The TOA A-3524D is a 240W Class D mixer amplifier with five inputs and a 2-zone speaker selector for 100V line or low impedance speakers. It has priority and emergency control inputs, phantom power on two inputs and line outputs for linking to booster amplifiers. It is used for paging and background music in shops, supermarkets, bars, restaurants, schools, offices and sports facilities.
240W
Class D
2 zones
Plus direct
5 inputs
Mic / line
100V
Or low-Z
Features
240W Class D output, 100V line or 4 to 16 ohm
2-zone speaker selector (100V line only) plus direct output
5 inputs: INPUT 1, 2 and 4 switchable mic/line, INPUT 3 mic, INPUT 5 AUX
Phantom power on two inputs
INPUT 1 and 2 on removable terminal blocks or phone jacks
Priority and emergency paging via contact control inputs
Zone control inputs and outputs, power remote and emergency outputs
2 line outputs and a record output
Power amp input on RCA
Rack mountable with the MB-25B kit (sold separately)
Specifications
| Rated output | 240W |
| Amplifier | Class D |
| Speaker output | Direct, zone 1 and zone 2: 100V or 4 to 16 Ω total |
| Frequency response | 50 Hz to 20 kHz (±3 dB, 1/8 rated output) |
| Distortion | 1% or less (1 kHz, rated output) |
| S/N ratio | 88 dB (A-weighted) |
| INPUT 1, 2 | -60 dB mic / -20 dB line, 600 Ω, balanced, terminal block or 6.3 mm jack |
| INPUT 3 | -60 dB, 600 Ω, balanced, 6.3 mm jack |
| INPUT 4 | -60 dB mic / -20 dB line, 600 Ω, balanced, 6.3 mm jack |
| INPUT 5 | -20 dB, 10 kΩ, unbalanced, 2 x RCA |
| Power amp in | 0 dB, 600 Ω, unbalanced, RCA |
| Rec and line outs | 0 dBV, 600 Ω, unbalanced, RCA |
| Control inputs | 2 channels plus zone control, dry contact, terminal block |
| Control outputs | Power remote, emergency, zone control; open collector, 30V DC, 25 mA |
| Power source | 100 to 240V AC, 50/60 Hz |
| Power consumption | 314W at rated output, 70W (EN 62368-1) |
| Operating temperature | -10 to +40°C |
| Finish | ABS resin, steel plate, black |
| Dimensions (W x H x D) | 420 x 96 x 313 mm |
| Weight | 4.9 kg |





