A-700 Series Integrated Mixer/Amplifiers - 240W

A-700 Series Integrated Mixer/Amplifiers - 240W

A-700 Series Integrated Mixer/Amplifiers - 240W

A-724

TOA A-724 is 240W Mixer/Amplifiers offer versatile features and outstanding value for installed sound applications such as boardrooms, educational facilities, houses of worship and many others with all manufactured with proven TOA quality and reliability.
Equipped with 6 LINE/ MIC selectable inputs, 2 LINE inputs and 1 MODULE input, the A-724 PA amplifier is designed to suit PA system applications such as announcements, BGM and broadcasting churches, large rooms and factories.


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Power Source 120 V AC, 60 Hz
Rated Output 240 W
Power/Current Consumption 565 W (rated output), 215 W (based on UL60065),
under 60 mA (when power switch is OFF)
Frequency Response 50 - 20,000 Hz (±3 dB)
Distortion Under 2% at 1 kHz, rated power
Input INPUT 1 - 6: -70 to -50 dB*, 600 Ω (MIC)/ -10 dB*, 600 Ω (LINE)
INPUT 1: Transformer-balanced, removable terminal block (3 pins)
INPUT 2 - 6: Electronically-balanced, removable terminal block (3 pins)
NOTE: Each of INPUT 2 and 3 can be converted into transformer-
balanced type by using an optional transformer IT-455.
INPUT 7 - 8 (LINE): -20 dB*, 10 kΩ, unbalanced, RCA jack
MODULE: -20 dB*, 10 kΩ
PWR AMP IN: 0 dB*, 10 kΩ, unbalanced, RCA jack
(An equalizer or other signal processor connectable between PRE AMP OUT
and PWR AMP IN terminals)
Output REC OUT: 0 dB*, 600 Ω, unbalanced, RCA jack
PRE AMP OUT: 0 dB*, 600 Ω, unbalanced, RCA jack
SPEAKER OUT: 70 V line (21 Ω), 25 V line (2.6 Ω), and 4 - 16 Ω,
removable terminal block (4 pins)
Phantom Power (+23 V DC) ON or OFF for each INPUT 1 - 6 (MIC input) with switch setting
S/N Ratio (Band pass : 20 - 20,000 Hz) Over 55 dB (INPUT 1 - 6, mic trim volume: max., 600 Ω terminated)
Over 70 dB (INPUT 1 - 6, mic trim volume: min., 600 Ω terminated)
Over 76 dB (Master volume: max.)
Over 90 dB (All input volume: min.)
Tone Control Bass: ±10 dB at 100 Hz
Treble: ±10 dB at 10 kHz
Control Input REMOTE VOLUME: Removable terminal block
POWER REMOTE: No-voltage make contact input,
open voltage: under 14 V DC,
short-circuit: under 0.5 mA, removable terminal block
MUTE CONTROL: No-voltage make contact input,
open voltage: under 17 V DC,
short-circuit: under 1.5 mA, removable terminal block
Indicator 5-point LED output level meter, Power indicator LED
Operating Temperature -10℃ to +40℃
Finish Panel: ABS resin, black, hair line
Case: Steel plate, black
Dimensions 420 (W) × 107.7 (H) × 351.5 (D) mm
Weight 13.5 kg
Accessory AC power cord (2 m) …1, Removable terminal plug (3 pins) …6,
Removable terminal plug (4 pins) …1, Removable terminal plug (6 pins) …1,
Volume control cover …4
Option Rack mounting bracket: MB-25B
Volume control cover: YA-920
Input transformer: IT-455



Features include six mic/line inputs, two auxiliary line inputs and a 900 Series module port. Each mic/line input includes a mic trim control and 23 VDC phantom power. Speaker outputs consist of 70.7 V, 25 V and 4 ohm. An auxiliary line output can be used for recording or connection to an external booster amplifier.

An Auto-Mute function provides voice-activated priority override. You can assign inputs to activate or respond to the muting function with rear panel DIP switches. Muting can also be activated with an external switch-closure. Other features include channel and master volume controls, bass/treble, processor insert jacks and output level meter. Master volume and power on/off can also be controlled remotely. Short-circuit and thermal protection circuitry ensures extended operation.

Optional accessories include the MB-25B rack-mount kit and YA-920 volume control security knob. The 700 Series is UL and cUL listed with competitive pricing and a five-year warranty.

Note: The 700 Series Mic/Line Inputs have Removable Terminal Block (Phoenix-type) connectors with the following pin-out: H: Hot, C: Common, E: Earth

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