Parasound A 21 - Manual (Page 14)

AC Power Connections
We recommend that you plug your A 21 into the same AC wall outlet or power strip that
powers your other audio components, especially the preamplifier or system controller.
Having all the audio components on the same power circuit helps prevent hum caused
by possible ground loops. The A 21 requires AC power that is continuous rather than
switched on and off.
110 V - 120 V or 220 V - 240 V Operation
The A 21 can operate on either 110 V - 120 V or 220 V - 240 V. The correct line (or “AC
mains”) voltage for your unit is marked on its carton. Changing the A 21’s operating
voltage involves rewiring internal connections for both its main power transformer and
standby power transformer, plus changing fuse values. Since there is a risk of electric
shock, voltage changes must be referred to a qualified technician.
What You’ll Need:
• An IEC 65 AC Cord (provided)
• An AC outlet or high quality AC power strip within reach of the AC cord
Before Connecting
Remove power to all the components in your audio system.
To Connect
Plug the female end of the AC cord to the AC receptacle on the rear of the A 21.
Plug the male end of the AC cord to an AC outlet or power strip.
CONNECTING THE A 21 AC POWER CORD 11
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