BACK PANEL FEATURES
6
7
(7)
IEC MAINS CONNECTOR
This is a standard IEC power connector. An AC mains cord having the appropriate AC plug and
ratings for the intended operating voltage is included in the carton.
U.S. DOMESTIC AC MAINS CORD
The mains cord supplied with the unit is a heavy-duty, three-conductor type with a conventional 120
VAC plug with ground pin. It should be connected to an independent circuit capable of continuously
supporting at least 15 amps. This is particularly critical for sustained high-power applications. If the
outlet used does not have a ground pin, a suitable grounding adapter should be used and the third
wire grounded properly.
Never break off the ground pin on any equipment. It is provided for your safety.
The use of extension cords should be avoided but, if necessary, always use a three-wire type with at
least a #14 AWG wire size. The use of lighter wire will severely limit the power capability of this
amplifier. Always use a qualified electrician to install any new electrical equipment. To prevent the risk
of shock or fire hazard, always be sure that the amplifier and all associated equipment is properly
grounded.
NOTE: FOR UK ONLY
If the colors of the wires in the mains lead of this unit do not correspond with the colored markings
identifying the terminals in your plug, proceed as follows: (1) The wire that is colored green and yellow
must be connected to the terminal that is marked by the letter E, the earth symbol, colored green, or
colored green and yellow. (2) The wire that is colored blue must be connected to the terminal that is
marked with the letter N or the color black. (3) The wire that is colored brown must be connected to
the terminal that is marked with the letter L or the color red.
(8)
BINDING POST OUTPUTS
Shockproof binding post speaker outputs are provided on the PV
outputs are in parallel and the speaker connection cables can be terminated with banana plugs or
stripped wires for use in the binding post terminals, or can be connected using the Speakon
(9). For sustained high-power applications, either outputs can be used; however, exercise care to
assure the correct speaker phasing. The red binding posts are the signal outputs from each channel,
and the black binding posts are chassis ground. The red binding post should be connected to the
positive inputs of the associated loudspeakers. For BRIDGE mode operation, only the red binding
posts are used and the associated loudspeaker load is connected between the two red posts.
WARNING...Regardless of what connections are used, the minimum parallel speaker load should
always be limited to 2 Ohms per channel or 4 Ohms BRIDGE mode for any application. Operation at
loads of 4 Ohms per channel, or 8 Ohms BRIDGE mode, is more desirable for sustained operation
applications because the amplifier will run much cooler at this loading. Operation above 4 Ohms per
channel and even open-circuit conditions can always be considered safe, but sustained operation at
loads below 2 Ohms could result in temporary amplifier shut down due to the thermal limit circuitry.
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9
8
11
9
18
15
12
17
amplifier. For each channel, the
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13
16
outputs
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