7
Constant Voltage Operation
All PCX Series loudspeakers feature a 70/100 V transformer in-
side the loudspeaker. This transformer allows many same model
PCX loudspeakers to be connected in parallel to a single amplifier
channel. The included transformer greatly simplifies installation
while reducing cost and complexity of the system.
When connecting PCX Series loudspeakers in Constant Volt-
age mode connect the positive (+) conductor of the amplifier, or
prior loudspeaker to the positive (+) terminal of the barrier strip
and connect the negative (-) conductor of the amplifier, or prior
loudspeaker to the negative (-) terminal of the barrier strip. The
second paralleled barrier strip inside the input pocket is available
for connecting to additional loudspeakers.
When selecting an amplifier for PCX Series loudspeakers in
Constant Voltage mode, the available power per channel must be
greater than the total of all loudspeaker power taps loaded onto
the channel. In order to prevent damage to both the amplifier, and
loudspeaker Renkus-Heinz recommends at least a safety margin
with at least 3 dB above the total power requirements per chan-
nel.
The PCX4 features a 60 W Transformer, and the PCX8 and PCX16
both feature 100 W Transformers. The table to the right details
the wattage taps for each transformer type.
PCX4
70 V
100 V
8 W
15 W
15 W
30 W
30 W
60 W
60 W
PCX8 & PCX16
70 V
100 V
12.5 W
25 W
25 W
50 W
50 W
100 W
100 W
Securing Connections Outdoors
All PCX Series loudspeakers include a cover for the input pocket
that features a factory-installed Gland-Nut to seal connections
from the elements. The Gland-Nut has a cable jacket tolerance
range of 0.23” to 0.395” (5.8 mm to 10.0 mm). When installing
PCX Series loudspeakers outdoors using the included Gland-Nut
cover, please ensure there is a drip loop to prevent water wicking
into the pocket.
PCX Series Input Pocket Cover
