5To ensure years of enjoyment from your NADY AUDIO ProPower™ PPA-300, please read and understand this manualthoroughly before using the unit.INSPECTIONYour NADY AUDIO ProPower™ PPA-300 was carefully packed at the factory in packaging designed to protect the units inshipment. Before installing and using your unit, carefully examine the packaging and all contents for any signs of physicaldamage that may have occurred in transit.[Please note: Nady Systems is not responsible for shipping damage. If your unit is damaged, do not return to Nady, but notifyyour dealer and the shipping company (if shipped to you) immediately to make a claim. Such claims must be made by theconsignee in a timely manner.]CONTENTS• Instruction manual• PPA-300 (verify that the unit’s serial number is same as shown on shipping carton)• AC Power cord• Warranty CardPOWER CONNECTIONThe PPA-300 has an internal power supply and is designed to operate from an external AC source. Power requirementsfor electrical equipment differ from area to area. Be sure to confirm that the voltage is your area is 115V, 60 HzRACK MOUNTINGThe PPA-300 amplifier is designed for standard 19" rack mounting as well as “stack” mounting without a cabinet. Use 4screws and washers for mounting to the front rack rails. It is also a good idea to support the amps also in the rear,especially for mobile use where the amps will be subjected to shocks.AMPLIFIER COOLINGAlso pay close attention to the cooling requirements. Never block the air vent in the back side and front of the amplifier ifthe amplifier is being run at high output levels. For best results in such high output power applications you shouldaugment the amplifier’s air flow with a rack cooling system.I N S TA L L AT I O N