TOA Electronics A-724 用户手册
133-12-920-9A
[A-724]
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)
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-
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): –10 dB*, 10 k
Ω, unbalanced, RCA jack
MODULE:
–10 dB*, 10 k
Ω
PWR AMP IN:
0 dB*, 10 k
Ω, 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
Over 55 dB (INPUT 1 – 6, mic trim volume: max., 600
Ω terminated)
(Band pass: 20 – 20,000 Hz)
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.)
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, removable terminal
POWER REMOTE: No-voltage make contact input, removable terminal
block, Open voltage: Under 14 V DC, Short-circuit:
Under 0.5 mA
Under 0.5 mA
MUTE CONTROL:
No-voltage make contact input, removable terminal
block, Open voltage: Under 17 V DC, Short-circuit:
Under 1.5 mA
block, Open voltage: Under 17 V DC, Short-circuit:
Under 1.5 mA
Indicator
5-point LED output level meter, Power indicator LED
Operating Temperature
–10°C to +40°C
Finish
Panel: ABS resin, black, hair line
Case: Steel plate, black
Case: Steel plate, black
Dimensions
420 (w) x 107.7 (h) x 351.5 (d) mm
Weight 13.5
kg
* 0 dB = 1 V
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
• Optional products
AC power cord (2 m) ........................................ 1
Removable terminal plug (4 pins) .................... 1
Removable terminal plug (6 pins) .................... 1
Removable terminal plug (4 pins) .................... 1
Removable terminal plug (6 pins) .................... 1
Removable terminal plug (3 pins) .................... 6
Volume control cover YA-920 .......................... 4
Volume control cover YA-920 .......................... 4
Input transformer: IT-455
Available as a service part with the
order code 114-03-120-40.
Additionally needed is the insulating
sheet also available as a service part
with 131-27-700-90.
order code 114-03-120-40.
Additionally needed is the insulating
sheet also available as a service part
with 131-27-700-90.
Rack mounting bracket: MB-25B
Volume control cover:
Volume control cover:
YA-920
900 series module