Proel HPD2004 - Manuale (Pagina 14)

14
If you connect a standard 2 wire cable (1+/1-), you run to the speaker the amplifi ed output of the signal applied to
channel 1/3 input.
If you connect a standard 4 wire cable (1+/1-/2+/2-), you run to the speaker:
• with amplifi er set in STEREO mode, the amplifi ed outputs of the signal applied to channel 1/3 input (1+/1-) and to
channel 2/4 input (2+/2-),
• with amplifi er set in PARALLEL mode, the amplifi ed outputs of the signal applied to channel 1/3 input only, (1+/1-) =
(2+/2-),
In both modes using a single cable you can connect a BI-AMP loudspeaker or a SUB-SAT speaker system.
Always connect a loudspeaker with a minimum impedance of 4 ohm or more.
NOTE: Use only loudspeaker enclosure cables, never signal cables, i.e. those normally used for microphones, instruments
and audio equipment in general.
15. Channel 2 or 4 SPEAKON output
Accepts a male Neutrik Speakon NL4FX connector wired in this way:
• PIN 1+ connected to POSITIVE output of Channel 2/4;
• PIN 1- connected to NEGATIVE output of Channel 2/4;
• PIN 2+ and 2- NOT connected.
This is the amplifi ed output of the signal applied to channel 2/4 input if the amplifi er is set in STEREO mode or the signal
applied to channel 1/3 input if the amplifi er is set in PARALLEL mode.
Always connect a loudspeaker with a minimum impedance of 4 ohm or more.
16. BRIDGE SPEAKON output
Accepts a male Neutrik NL4FX connector wired in this way:
• PIN 1+ connected to "in phase" (Channel 1/3);
• PIN 1- connected to "out phase" (Channel 2/4);
• PIN 2+ and 2- NOT connected.
This is the amplifi ed output of the signal applied to channel 1/3 input if the amplifi er is set in BRIDGE mode.
Always connect a loudspeaker with a minimum impedance of 8 ohm or more.
NOTE: Use this output alone and only with BRIDGE mode se ng.
17. MAINS ~ cord
This is the amplifi er mains supply cord. Connect the power cord to an electrical outlet complying with the power supply
specifi ca ons indicated on the apparatus. Be sure your amplifi er is turned off before you plug the mains supply cord
into an electrical outlet.