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zd TOA PA AMPLIFIER A—1806(AS) BOESCRIPTIÓN Equipped with Priority function, Chime function, and 2 Zone selector switches, the A—1806 PA Amplifier of 60 W is designed to suit the followin PA system applications: paging announcements, intercommunications, BGM, and broadcasting in schools, offices, and shops. It's power remote control function, provided especially for use in con junction with the P—1812 (optional), will turn ON or OFF the P-1812's power. BSPECIFICATIONS (x1) 0 dB = 1 V Power Source 240 V AC, 50/60 Hz 24 V DC (M4 screw terminal) Rated Output 60 W Power/Current AC operation: 158 W (rated output), 66 W (EN60065), Consumption 150 mA or less (when power switch is OFF) 24 V DC operation: 3.8 A (rated output), 1.6 A (EN60065) Frequency Response 50 Hz — 20 kHz (+3 dB) Distortion 2 7% or less at 1 kHz, rated power Input MIC 1: —60 dB(x1), 600 ©, electronically-balanced, combined type of XLR—3—51 equivalent and phone jack, DIN socket (5 pins) MIC 2 — 3: —60 dB(x1), 600 ©, 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 Q, unbalanced, M3 screw terminal Output REC: 0 dBt*1), 600 Q, unbalanced, RCA pin jack LINE 1, 2 (+3): 0 dB(x1), 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/167 Q), individual selector switch, M4 screw terminal DIRECT SPEAKER OUT: High impedance (100 V line/167 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) /6 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 V DC, short—circuit: 10 mA or less, M3 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 & TEL”, ON/OFF selectable with switch setting Operating Temperature —10 °С 10 +40 °C Finish Panel: ABS resin, black, hairline Case: Steel plate, black Dimensions 420 (W) X 107.7 (H) X 367 (D) mm Weight 9.4 kg Accessory Power cord -1, Terminal block cover +1, 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, M4 -- 9 mm (x2) Can be transformer—balanced with the addition of optional IT-455A input transformer. (+3) 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.) « ОЕ TOA Corporation DWG No: GA—0RZB1-3 BAPPEARANCE PA AMPLIFIER A—1806( AS) DB REMOTE OUT CONTROL MOH OUT EMERGENCY TEL PAGING @ CHIME MUTE BY TEL SIG 240V 0.44 50/60hz PA AMPLEER =) Pole 1 PO ГО HER ZZ) BLANK Г ТЕ ВСМС 1 96 ET IN orl RATED oo To emy — Tf € Como CO E E MOH A PAGING CHIME | =] в ie Шт: OFF OFF ® ® ENGNEERED IN Зе ASEO NC ОО Of | 1 TONE | OFF | ON NONE | ON | ON oO REC OUT LINE OUT AUX 3 AUX 2 (M он) MIC 3 MIC 2 MIC 1 ® ой ей ант 1 ( ) () ( ) () O INPUT === DIRECT ZONE2 ZONE! O — E OU E — A E 2-60 OO 100 TUD Eb bb O. = - © © dale Y O ee © à. @ AA —2 «> © SP OUT OUTPUT INPUT Le SP OUT J _ ( ) | T T - 420 - MIC 1 ME © Nu 7 PME AUS > ui 5 EMERGENCY a | == © a Do 10 BASS TREE a % 2 > æ 2 æ æ > æ E 7 4 2 % © © | O O qe 0-12 POWER Y Г EE -18 00 + LS 00 D al 223 -24 al О: O — Ga ГО А PA AMPLIFIER model А-1806 | Front View + — UNIT:mm SCALE: 1/73 O5E С Side View TOA Corporation View DWG No: GA—0RZC1-2
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