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FA Amplifier • Operating Manual
Table of Contents
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2
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3
4
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5
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polarity............ 8
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6
7
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1
Introduction
Thank you for your purchase of this Ashly
FA power amplifier. This product uses state
of the art, light weight, high efficiency
switching technology developed through
years of design and testing. FA amplifiers are
available in two power levels, designed to
......... 5
meet the most demanding live sound and fixed
installation sound systems in stadiums, arenas,
performance venues, restaurants, worship
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spaces and conference centers.
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1.2
Features
•
2 x 125W (half-rack), 4 x 125W (half-rack),
or 4 x 250W (full-rack)models
•
Active power factor correction (PFC)
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•
Power-sharing on 125W models
•
Low-Z or High-Z (70V/100V) output mode
per channel
•
Euroblock input and output connectors
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•
Front panel soft-power switch
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•
Front panel level controls, fully off = mute
9
•
Front panel status LED per channel for
9
signal, limit, mute, input clipping, protect
•
Input sensitivity select: +4dBu or -10dBv
........ 9
•
Standby mode contact closure with normally
................9
open/normally closed polarity switch
•
Automatic sleep mode (non-defeatable)
.......... 10
•
Front panel lock
•
Remote DC level control per channel (2 channel
model), per channel pair (4 channel models)
•
Protect mode fault logic output
•
Universal 100-240VAC operation, 50-60Hz
•
Detachable AC connector
•
USB connector for firmware update
•
Variable cooling fan
•
Rack mount or table/wall mount kit available
for half-rack models
•
Rear support kit available for all models
•
Protection: Over-temperature, output short-
circuit/over-power, output DC, mains fuse
•
Safety/Compliance: UL, CE, FCC Class B,
Energy Star®, RoHS
•
Ashly five year warranty
2
Requirements
Before connecting to AC mains power,
make sure that the mechanical installation,
wiring, cooling requirements, and controls
are all set to the configuration needed for
your particular application. Failure to do so
could result in damage to the unit or to other
components in the system.
2.1
AC Mains Requirements
This amplifier will auto-detect AC mains voltage
from 100-240VAC, 50-60Hz. At nominal 120VAC
mains, the allowed operating range is 85-
135VAC to allow for brownouts or power surges,
and for nominal 240VAC operation the range is
170-265VAC. Use only the provided AC cord to
connect to AC mains. The power consumption
is indicated on the back panel near the AC inlet.
To reduce the risk of ground loop hum, all sound
system ground references should originate at the
same AC power distribution point. Do not lift or
remove the amplifier power cord ground pin.
4