TOA A-1812 UK User manual

TOA A-1812 UK User manual
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zd TOA PA AMPLIFIER A—1812(UK)
HDESCRIPTTON
Equipped with Priority function, Chime function, and 2 Zone selector switches, the A-1812 РА
Amplifier of 120 W is designed to suit the following PA system applications: ¡peana announcements,
intercommunications, BGM, and broadcasting in schools, offices, and shops. Its power remote
control function, provided especially for use in conjunction with the P=1 12 (optional), will turn
ON or OFF the P—1812's power.
HSPECIFICATIONS (*1) 0 dB = 1 V
Power Source 220 — 230 V AC, 50/60 Hz
24 V DC (M4 screw terminal)
Rated Output 120 W
Power /Current AC operation: 260 W (rated output), 110 W (EN60065),
Consumption 320 mA or less (when power switch is OFF)
24 V DC operation: 7.0 A (rated output), 2.8 A (EN60065)
Frequency Response 20 Hz — 20 kHz (£5 dB)
Distortion 2 % or less at 1 kHz, rated power
Input MIC 1: —60 dB(x1), 600 ©, electronically-balanced,
combined type of XLR—3-31 equivalent and phone jack, DIN socket (5 pins)
MIC 2 — 3: —60 dB(x1), 600 Q, electronically-balanced,
combined type of XLR-3-31 equivalent and phone jack
AUX 1 (MOH): —20 dB(+1), 10 kQ, unbalanced, RCA pin jack
AUX 2: —20 dB(x1), 10 kQ, unbalanced, RCA pin jack
AUX 3: —20 dB(x1), 10 kQ, unbalanced, combined type of XLR-3-31 and phone jack
TEL(*2): —20 dB(*1), 10 kQ, electronically-balanced, M3 screw terminal
EMERGENCY: O dB(x1), 600 (, unbalanced, M3 screw terminal
Output REC: O dB(*1), 600 Q, unbalanced, RCA pin jack
LINE 1, 2 (+35): O dB(*1), 600 Q, unbalanced, RCA pin jack
MOH: 0 dB(x1), 600 Q, transformer balanced, M3 screw terminal
SPEAKER SELECTOR: 2 zone, high impedance (100 V line/83 Q), individual selector switch,
M4 screw terminal
DIRECT SPEAKER OUT: High impedance (100 V line/83 Q), M4 screw terminal
Low impedance (4 — 16 Q), M4 screw terminal
(Both Low and High impedance terminals cannot be used at the same time.)
Phantom Power ON or OFF for each MIC1 — 3 with switch setting (+17 V DC)
S/N Ratio 100 dB or more (Master volume: min)
(Band Pass 70 dB or more (Master volume: max)
: 20 Hz — 20 kHz) 60 dB or more (MIC 1 — MIC 3)
76 dB or more (AUX 1 — AUX 3)
90 dB or more (TEL)
96 dB or more (EMERGENCY)
Tone Control Bass: +10 dB at 100 Hz, Treble: £10 dB at 10 kHz
Control Input TEL: No—voltage make contact input, open voltage: 24 V DC, short-circuit: 5 mA or less,
M3 screw terminal
EMERGENCY(+4): No-voltage make contact input, open voltage: 24 У ОС,
short-circuit: 10 mA or less, M5 screw terminal
Control Output Power remote: Open collector output, withstand voltage: 35 V DC,
control current: 50 mA or less, M3 screw terminal
Chime 1—tone, 2—tone, or ascending 4—tone chime, or None selectable with switch setting,
activated at MIC 1's DIN or CONTROL TEL terminal.
Indicator 5 point LED output level meter, Power indicator LED, Zone indicator LED, Emergency LED,
TEL LED
Priority EMERGENCY: Overrides other inputs
TEL: Overrides other inputs except EMERGENCY’, ON/OFF selectable with switch setting
MIC 1: Overrides other inputs except EMERGENCY 8 TEL”,
ON/OFF selectable with switch setting
Operating Temperature | —10 °С 10 +40 °С (14 + to 104 °F)
Finish Panel: ABS resin, black, hairline
Case: Steel plate, black
Dimensions 420 (W) X 107.7 (H) X 367 (D) mm (16.54 X 4.24" X 14.45")
Weight 12.6 kg (27.78 Ib)
Accessory Power cord +1, Terminal block cover |, Terminal block cover mounting screw 2
Option Rack mounting bracket: MB—25B
Volume control cover: YA—920
Input transformer: IT—455A
[Note] Distance between barriers on the above screw terminals: M3 = 7 mm (0.28”),
M4 -- 9 mm (0.35)
(*2) Can be transformer—balanced with the addition of optional IT-453A input transformer.
(x3) LINE 1 and LINE 2 outputs can be interlocked with ZONE 1 and ZONE 2 speaker selectors, respectively.
(This function needs internal modification.)
(x4) Operation when activated can be selected from the following: Turning ON the unit's power (factory-preset) or OFF.
(The OFF function needs internal modification.)
TOA Corporation DWG No: GA—034B1-2
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TOA PA AMPLIFIER A—1812(UK)
BAPPEARANCE
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QUTPUT RATED 120W CY 00 $86 Mic 3 4 TONE Ka OFF
TOA Corporation 2 TONE| ON | OFF
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NONE | ON | ON
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Front View
367 [14.45”]
18.5 [0.737] 326.5 [12.85”]
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Side View
UNIT:mm SCALE: 1/3
03E TOA Corporation DWG No: GA—034C1-2
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