Versatility plus

The A-1800 Series amplifiers are distinctive for their input versatility. Each has three mic inputs, three auxiliary inputs, an emergency input as well as a telephone paging input. Paging can be initiated and the chime function can also be set to automatically output to two zones.

Phantom power provided

The A-1800 Series of amplifiers provide phantom power to all connected microphones. Phantom power can switched on or off as needed. The microphone inputs feature a balanced configuration with XLR connectors, allowing long Cable runs without any problems.

2 Zone coverage

A-1800 Series amplifiers feature 2 speaker zones to which broadcasts can be sent independently or combined as desired. Emergency broadcasts will be heard in both zones. Even when the amplifier power is switched off, an emergency broadcast will be imitiated to both zones.

Chime on input

The Mic 1 input incorporates chime on capability when the optional PM-660D Paging Microphone is used. Chime on can also be activated for the telephone paging. A selection of chime tones are available such as single, two-tone and four-tones which can either be in ascending or descending order.

Line output

A line output is useful for adding more power in a particular zone by providing the input signal for a booster amplifier such as the P-1812.

Record output

The back panel includes a stereo record output for connecting an external recorder to archive or back up broadcasts.

Input priority override and muting

Each input can be set for priority override as well as mute. This facilitates making emergency announcements and messages as well as paging. Priority is in order starting with emergency, telephone paging, Mic 1* input, then aux.

* Mic 1 has priority by default unless switched or when the optional PM-660D Paging Microphone is used. Priority will also automatically decrease the levels of other inputs.

Music On Hold (MOH) output-equipped

For adding convenient music or messages when telephone call waiting, music from a CD or cassette player connected to the Aux 1 input will activate MOH to fill the silence.

Optional P-1812 120W Power amplifier System amplification option

When additional power amplification is required to power more speakers in a system, the toa P-1812 Booster amplifier can be connected to an A-1800 Series amplifier's line out which provides an optimal level and impedance to efficiently drive the P-1812.

Emergency control

On the back panel of amplifier is a remote-in terminal for emergency control which sets the default output level for the emergency input. This can be remote-controlled via the main volume setting control.