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PF-350 / PF-500 / PF-800 Bass Guitar Amplifier
14
19. IEC POWER INPUT CONNECTOR: This
is where you connect the supplied AC
power cord.
Before plugging in the power cord, make
sure that the voltage selector switch
[20]issettothesamevoltageasyour
local AC mains.
20. VOLTAGE SELECTOR SWITCH:
Make sure the switch is in the correct
position for your local AC mains voltage
before you plug in the AC power cord.
Use a small flat screwdriver to slide the
switch if required.
21. POWER SWITCH: Use this switch to
turn the overall system power on or off.
Press the switch to the left to turn on
the power. Press the switch to the right
to put the amp into standby mode. It will
not function, but the circuits are still live.
To remove AC power, either turn off the
AC mains supply, or unplug the power
cord from the amplifier and the AC
mains supply.
22. VENTILATION: Make sure that the
ventilation openings are not obscured in
any way. This will allow the flow of
cooling air to the power
amplifier’s heatsinks. See “Fault/Thermal
Considerations” on page 18 for more
information.
23. SPEAKER OUTPUTS: These individual
Speakon/1/4"TSoutputjackssupply
speaker-level power to the speaker
cabinet.
The rated power output of the PF-500
is 300 watts rms into 8 ohms or
500 watts rms into 4 ohms.
The rated power output of the PF-800
is 400 watts rms into 8 ohms or
800 watts rms into 4 ohms.
The two outputs are wired in parallel,
and you can use either one, or use both.
Make sure the total speaker impedance
load is 4 ohms or greater.
For example, you could connect:
Two 16 ohm speakers (an 8 ohm load),
Two 8 ohm speakers (a 4 ohm load)
or one 4 ohm speaker.
Use speaker cables with Speakon or
1/4"TSendstomaketheconnections.
Do not use instrument cables as they
may overheat.
24. XLR LINE OUT JACK: Typically, you
would connect this balanced output to
the balanced input of an external mixer,
or a recorder. In this way, you do not
have to mic the speaker cabinet in order
to add it to the main mix, or to record.
The output is not affected by the volume
control[15].
This output can connect to external
power amplifiers, or powered
loudspeakers, as long as they have their
own input controls to adjust the volume
level.
Balanced connections allow long cable
runs to be used, as hum and noise
pickup in the line is minimized.
PF-500 / PF-800 Rear Panel
19 20 21 22 23 23 24 2625 27 28
2930313233
XLR line
out
pre-EQ
post-EQ
300 W @ 8 500W @ 4Ω MIN LOAD [PF-500]
400 W @ 8 800W @ 4Ω MIN LOAD [PF-800]
send
return
tuner outpwr amp in pre amp out
patch
power
LIFT
GND
-40dB
0dB
ft switch
speaker outputs
CLASS 2 WIRING
fx loop
PF 800
PF 500
14


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