TOA / A-3524D PA amplifier 240W

The TOA A-3524D is a PA amplifier with four microphone inputs, one spare input, a priority function and a two-channel zone selector built in. It is ideal for paging and background music broadcasting in schools, offices, supermarkets, etc.

This PA amplifier has four microphone inputs, one spare input, as well as a built-in priority function and two-channel zone selector. It also uses a PFC circuit. It is ideal for paging and background music broadcasting in schools, offices, supermarkets, etc. ■Power supply　AC 100 V 50/60 Hz ■Rated output　240 W ■Power consumption/current　329 W (at rated output), 70 W (according to Electrical Appliance and Material Safety Act), 200 mA or less (power switch OFF) ■Frequency response　50 Hz to 20 kHz　±3 dB (at 1/8 rated output) ■Distortion rate　1% or less (1 kHz rated output), 20 kHz LPF (AUX-0025) ■Sound quality adjustment　±10 dB or more at 100 Hz, 10 kHz ■Signal-to-noise ratio　Master volume (min): 88 dB or more　Master volume (max): 76 dB or more　INPUT 1 to 4: 55 dB or more　INPUT 5: 72 dB or more　(JIS-A) ■Audio input　INPUT 1, 2: -60 INPUT 3: -60 dB (*1) (mic) / -20 dB (*1) (line) switchable, 600 Ω electronically balanced, detachable terminal block (5 pins) / φ6.3 mm phone jack (2 pins) * Phantom power for microphones is DC 24 V (ON/OFF can be turned on/off with a switch) INPUT 4: -60 dB (*1) (mic) / -20 dB (*1) (line) switchable, 600 Ω electronically balanced, φ6.3 mm phone jack (2 pins) INPUT 5: -20 dB (*1) 10 kΩ unbalanced, RCA pin jack x 2 Power amp: 0 dB (*1) 600 Ω unbalanced RCA pin jack ■Audio output Speaker: Low impedance (4 to 16 Ω)/High impedance (Direct, ZONE 1/ZONE 2: 100 series/composite 42 Ω) Removable terminal block (6 pins) (ZONE 1/ZONE 2 is selectable, maximum 240 W per zone) Recording: 0 dB (*1) 600 Ω unbalanced RCA pin jack Line 1, 2: 0 dB (*1) 600 Ω unbalanced RCA pin jack (*Can be linked with zone selection) ■Control input 2 systems, no-voltage make contact, open voltage: DC 35 V or less, short-circuit current: 10 mA or less, removable terminal block (5 pins) Zone control input: No-voltage make contact, open voltage: DC 35 V or less, short-circuit current: 10 mA or less, removable terminal block (4P) ■Control output Remote output: Open collector output, Withstand voltage: DC 30 V or less, Allowable current: 25 mA or less, Removable terminal block (4P) Emergency output: Open collector output, Withstand voltage: DC 30 V or less, Allowable current: 25 mA or less, Removable terminal block (4P) Zone control output: Open collector output (polarized), Withstand voltage: DC 30 V or less, Allowable current: 25 mA or less, Removable terminal block (4P) ■Indications 5-point LED level meter, power indicator, priority broadcast indicator, emergency broadcast indicator, temperature protection indicator, overcurrent protection indicator, zone 1 indicator, zone 2 indicator ■Operating temperature range -10°C to +40°C ■Operating humidity range 85 % RH or less (but no condensation) ■Finish 　Panel: ABS resin, black (approximate color to Munsell N1.0) 　Case: Surface-treated steel plate, black (approximate color to Munsell N1.0), painted ■Dimensions 　420 (W) x 96.1 (H) x 313.1 (D) mm ■Weight　4.9 kg ■Accessories 　Power cord (2 m)... 1, detachable terminal plug for audio input (3.81 mm, 5P)... 2, detachable terminal plug for control I/O (3.81 mm, 4P)... 2, detachable terminal plug for remote control (3.5 mm, 4P)... 1, detachable terminal plug for speaker output (5 mm, 6P)... 1, volume cover... 4 ■Optional items　Rack mounting bracket: MB-23B, Ventilation panel: PF-013B (*1) 0 dB = 1 V