Parasound
®
ZoneMaster
™
450 Owner’s Manual
Page 8
AC Mains Voltage
BEFORE plugging in the ZoneMaster 450
’s AC power cord: Check if the rear panel is
marked for 115V or 230V. These markings are located below the AC line (mains) inlet.
The ZoneMaster 450 has been set by the factory to either 115V or 230V AC mains operation. The
unit can be seriously damaged if it is plugged into the incorrect AC mains voltage. The operating
voltage for this model can be changed only by a qualified electronics technician.
In the 115V position the ZoneMaster 450 can safely operate with AC line voltages between 110V-120V
which is correct for North America, including Mexico, as well as in Taiwan. In some countries, such as
Brazil, AC voltage varies by region. Most other countries require setting this switch to 230V. With the
230V setting the ZoneMaster 450 can operate safely with AC line voltages between 220V-240V.
Note: A ZoneMaster 450 that has been damaged by connection to the
incorrect AC voltage is not covered by the Parasound warranty.
AC Voltage Marking:
AC Line Power Cord
Connect your sources and preamplifier before you plug in the AC cord.
The power cord supplied with your
ZoneMaster 450 is an IEC type 18AWG AC cord. The AC ground potential can vary between your AC outlets
and the result can be an audible 60Hz (or 50Hz) hum heard in your speakers. To help avoid this problem
plug your ZoneMaster 450 into the same AC wall outlet, power strip or line conditioner as all your other audio
equipment.
