On
B OnA
IMPORTANT: FFA-4004 and FFA-6004 have a single input mains fuse and the FFA-6000, FFA-8000 and
FFA-10000 amplifiers have input mains fusing for each channel. If a mains fuse fails it must be replaced
with the same type as supplied with the unit, this will ensure continued protection against fire and
equipment damage.
If a fuse has failed without good reason, disconnect mains supply and using a medium flat blade
screwdriver remove fuse carrier and replace fuse.
6.3mm x 32mm T20 A, 250V ac ceramic type fuse.
IMPORTANT If the amplifier develops a fault and internal fuses are blown it is the likelihood that there is a
genuine fault with the amplifier. These fuses must not be replaced as further damage could occur. Please
return the amplifier for service.
POWERING UP
The FFA-4004 and FFA-6004 have a single power on switch located on the right side of the front panel with
green LED indicator for ‘power on’. The FFA-6000, FFA-8000 and FFA-10000 have 2 power on switches one
for each channel and green LED power on indicators.
All FFA amplifiers have ‘soft start’ or current in rush protection circuitry which slows down the time the
amplifiers bulk storage capacitors are charged and prevents accidental tripping of mains safety breakers.
After ‘switch on’, each amplifier channel’s clip and protect LED will glow red for approximately 4 seconds
until the amplifier is ready for operation. The clip light will also glow red if an input signal is present until
the amplifier is ready for operation.
Mains power connection - continued
pg 8
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