PF 500
power
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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.
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300 W @ 8Ω 500W @ 4Ω MIN LOAD |
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23.SPEAKER OUTPUTS: These individual
Speakon / 1/4" TS output jacks supply
500 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.