A-724 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
A-724 Specification
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
