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Rear Panel
7
MADE IN CHINA
T 15AL
230V
250V
115V
MOUNT IN RACK ONLY
INSTALLER SUR SUPPORT
DE MONTAGE SEULEMENT
9
8
IEC MAINS CONNECTOR
8
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.
LINE VOLTAGE SELECTOR SWITCH
9
The PV series power transformer is designed with two primaries that can be placed in series or parallel by means of the line
voltage selector switch. It is accessible by loosening one screw and rotating the transparent guard out of the way. Please be
sure this is set to the proper voltage for your area before turning the amplifier on for the first time.
BINDING POST OUTPUTS
10
Shockproof binding post speaker outputs are provided on the PV® amplifier. For each channel, the 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 twist lock outputs (11). For sustained high-power applications, either outputs can be used;
however, exercise care to assure the correct speaker polarity. 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 loudspeaker load is
connected between the two red posts, with CH A having positive polarity and CH B having negative polarity.
WARNING.
2 Ohms per channel, or 4 Ohms when in BRIDGE mode. 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 with
this load. 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.
TWIST LOCK OUTPUTS
11
PV® amplifiers utilize three 4-conductor twist lock connectors, one for each channel and one for BRIDGE mode. Please refer
to the BRIDGE MODE section of this manual before attempting to use this mode. For each channel twist lock, the same
impedance rules apply as with the binding posts. Internally, all the twist locks are wired in the "high current" configuration, with
11
B
CHANNEL
BRIDGE
CHANNEL
BRIDGE
_
+
_
_
+
+
SPEAKER OUTPUTS
10
Regardless of what connections are used, the minimum parallel speaker load should always be limited to
12
A
BRIDGE
STEREO
BRIDGE
DDT
TM
ENABLE
DEFEAT
14
13
9
17
19
16
A
CHANNEL
LINE OUTS
40 Hz
INPUTS
THRU
+
150 Hz
A
X-OVER
-
HIGH
LOW
OUT
OUT
GND
40 Hz
THRU
-
B
150 Hz
+
X-OVER
HIGH
LOW
OUT
OUT
B
CHANNEL
20
18
15
13
10
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