Avsl Adastra LA-300 mkII 사용자 설명서 - 페이지 4

{카테고리_이름} Avsl Adastra LA-300 mkII에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Avsl Adastra LA-300 mkII 8 페이지. Loop amplifiers

Installation

The LA series loop amplifiers can be operated free-standing or fitted into a standard 19" rack cabinet using

the supplied rack ears. Ensure that the unit is positioned on a stable surface with adequate cooling

ventilation.

The XLR/jack connectors can be set to accept microphone or line level via the Mic/Line DIP switches (16),

which are also accompanied by switches for activating phantom power (+20V) for use with condenser

microphones.

Multiple loop amplifiers can be used in master/slave mode using the combined slave input/output jack (17).

Connecting a stereo 6.3mm plug to this socket gives 2 wiring options as shown below.

Connecting a mono 6.3mm plug will function as a slave output. A TRS plug with signal connected to the ring

will be needed for a slave input from another loop amplifier.

Alarm contacts (13) are provided, which will emit a siren on the induction loop when the connection is made.

These can be connected to an emergency switch or alarm panel contacts to activate the siren for emergency

evacuation, indicated by an LED on the front panel (7)

Alongside the alarm contacts are the screw terminals for the induction loop (12). Connect the 2 ends of the

loop wire to these terminals, ensuring no stray strands or shorted connections. See below for details about

installing the loop wire before connecting mains power to the loop amplifier.

Mains is connected via a rear panel IEC connector (11) with a built-in mains fuse.

Use the supplied lead and ensure that the correct mains voltage is set on the voltage selector (10).

There are 3 input channels which can accept inputs via balanced XLR or 6.3mm

jack connection (14) or unbalanced RCA connection(15).

952.864UK, 952.867UK User Manual