Specifications – TOA Electronics A-724 User Manual

Page 10

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10

12. SPECIFICATIONS

[A-706]

* 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 (3 pins) .................... 6
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.

Rack mounting bracket: MB-25B
Volume control cover:

YA-920

900 series module

Power Source

120 V AC, 60 Hz

Rated Output

60 W

Power/Current Consumption

155 W (rated output), 68 W (based on UL60065),
under 250 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): –10 dB*, 10 k

Ω, unbalanced, RCA jack

MODULE:

–10 dB*, 10 k

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 (83

Ω), 25 V line (10 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.)

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

block, Open voltage: Under 14 V DC, Short-circuit:
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

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

Dimensions

420 (w) x 107.7 (h) x 351.5 (d) mm

Weight 9.5

kg

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