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F R O N T   &   R E A R   C O N T R O L S A N D C O N N E C T I O N S

FRONT PANEL

1. POWER SWITCH

To turn the unit ON or OFF, press the left or right portion
of this button. Before turning on the amplifier, check all
connections and turn down the level controls. A
momentary muting is normal when turning the amplifier
on or off.

(Caution: Always turn on your power amplifier

last, after all your other connected equipment, and
always turn off your power amplifier before your other
connected equipment.)

2. POWER LED INDICATOR

This LED flashes and then illuminates when the power is
turned “ON”.

3. CLIP (PEAK) LED INDICATORS

These LEDs illuminate if any section of the power
amplifier’s output are within 3dB of clipping. Occasional
blinking of the LEDs are acceptable, but if they remain on
more than occasionally you should turn down either the

power amplifier’s level controls or reduce the output level
of the preceding component to avoid audible distortion or
hard clipping.

(Note: Operating the amplifier at hard

clipping can result in overheating or may damage your
amplifier over a period of time. Amplifiers that are
damaged due to such user neglect, or improper
operation, are not covered under warranty.)

4. SIGNAL LED INDICATORS

These LEDs illuminate to confirm the presence of an
input signal greater than 100 mV at that channel of the
amplifier

5. LEVEL CONTROLS

These control the level of signal coming into each
channel. The actual voltage gain of the amplifier is
shown in dB. Turn these controls counterclockwise if the
peak LEDs illuminate steadily (indicating too strong an
input signal).

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REAR PANEL

6. POWER CONNECTOR

The cord connector is used to connect the AC power
source to your power amplifier.

(CAUTION: DO NOT

REMOVE THE CENTER GROUNDING PIN.)

7. FUSE

If this fuse blows continuously, shut off the unit and have
it serviced by qualified service technician. 115V AC ~5A
250V FB

8. L/R CHANNEL OUTPUT CONNECTORS

1/4” (6.3 mm) speaker output jacks. Connect these to
speakers with a total impedance of no less than 4 ohms
per side.

9. BALANCED INPUT CONNECTORS (1/4" TS & XLR)

1/4" (6.3mm) TS (Tip/Sleeve) phone jacks and XLR
jacks.

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Summary of Contents for ProPower PPA-300

Page 1: ...PPA 300 ProPower Stereo Power Amplifier O W N E R S M A N U A L ...

Page 2: ...erial CONTENTS FEATURES FEATURES 2 WARNING 3 FRONT REAR PANEL CONNECTIONS 4 INSTALLATION 5 CONNECTIONS 6 SPECIFICATIONS 7 Offering top power superior performance and full professional operating features in a roadworthy compact chassis the PPA 300 amplifier is perfect for even the most demanding sound reinforcement installation and touring applications Full operating features stereo dual channel vo...

Page 3: ...produce heat 7 The product should be connected to a power supply only of the type described in the operating instructions or as marked on the product Replace the fuse only with one of the specified type size and correct rating 8 The power supply cord should 1 be undamaged 2 never share an outlet or extension cord with other devices so that the outlet s or extension cord s power rating is exceeded ...

Page 4: ...the amplifier at hard clipping can result in overheating or may damage your amplifier over a period of time Amplifiers that are damaged due to such user neglect or improper operation are not covered under warranty 4 SIGNAL LED INDICATORS These LEDs illuminate to confirm the presence of an input signal greater than 100 mV at that channel of the amplifier 5 LEVEL CONTROLS These control the level of ...

Page 5: ...l number is same as shown on shipping carton AC Power cord Warranty Card POWER CONNECTION The PPA 300 has an internal power supply and is designed to operate from an external AC source Power requirements for electrical equipment differ from area to area Be sure to confirm that the voltage is your area is 115V 60 Hz RACK MOUNTING The PPA 300 amplifier is designed for standard 19 rack mounting as we...

Page 6: ...CONNECTIONS 6 Total impedance no less than 4 Total impedance no less than 4 or or ...

Page 7: ...REQUENCY RESPONSE at 10dB below rated output power 20Hz 20KHz 1dB 5Hz 50KHz 3dB DISTORTION 1 S N RATIO 100dB GENERAL SPECIFICATIONS PROTECTIONS Full short circuit open circuit thermal ultrasonic and RF protection stable into reactive or mismatched loads ON OFF muting current limiter FRONT CONTROLS Power switch input level control for each channel REAR PANEL CONTROLS AC voltage selector switch CONN...

Page 8: ... product require service please contact the Nady Service Department via telephone at 510 652 2411 or e mail at service nady com International For service please contact the NADY AUDIO distributor in your country through the dealer from whom you purchased this product DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF AS IT CAN BE DANGEROUS AND WILL ALSO VOID THE WARRANTY ...

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