RCF HDL15-AS Owner's Manual page 7

Always make sure that the maximum current requirement does not exceed the maximum
admitted POWERCON current. In case of doubt call the closest RCF SERVICE CENTRE.
13
POWER MAIN SWITCH. The power switch turns the AC power ON and OFF. Make sure
that the VOLUME is set to - when you turn on the speaker.
14 FUSE.
The XLR connectors use the following AES standard:
PIN 1 = GROUND (SHIELD)
PIN 2 = HOT (+)
PIN 3 = COLD (-)
At this point you can connect the power supply cable and the signal cable, but before
turning on the speaker make sure that the volume control is at the minimum level (even
on the mixer output). It is important that the mixer is already ON before turning on the
speaker. This will avoid damage to the speakers and noisy "bumps" due to turning on parts
on the audio chain. It is a good practice to always turn on speakers at last and turn them
off immediately after the show.
Now you can turn ON the speaker and adjust the volume control to a proper level.
HOT
COLD
CONNECTIONS
GND
BAL. XLR
BEFORE CONNECTING
THE SPEAKER
7