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PTA3000 manual Professional Power Amplifier, Operating Guide
Models:
PTA3000
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Specs
Install
Amplifier Configurations
Fault Leds Fault
levels occur Then, as temperatures in the amplifier heat sinks increase, the automatic thermal-sensingcircuitry will cause high-speedoperation to occur. Depending upon signal conditions and amp loading, high-speedfan operation may continue or the fan may cycle continuously between high and low. This situation is quite normal. If cooling is inadequate, however, the amplifier thermal-sensingsystem may cause temporary shut down of the unit, indicated by the LEDs on both channels going dark. Inadequate cooling may be due to preheated air, reduces air flow resulting from blockage of inlet/outlet ports, severe amplifier overload, or short circuit conditions. Depending upon the available cooling air, operation should be restored relatively quickly, and the power LED on both channels will again be illuminated. In any event, action should be taken to correct the cause of the thermal shutdown. If the amplifier is not severely overloaded or shorted and air flow is normal in and out of the amplifier, then steps should be taken to provide a cooler environment for all the amplifiers. As a general rule, the cooler electronic equipment is operated, the longer its useful service life
Safety
Professional Power Amplifier
Iec Mains Connector
Mode Switch
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PROFESSIONAL POWER AMPLIFIER
PTA3000
OPERATING GUIDE
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Contents
PTA3000
PROFESSIONAL POWER AMPLIFIER
OPERATING GUIDE
IMPORTANT SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
Duration Per Day In Hours
Sound Level dBA, Slow Response
INSTALLATION
SERIES PROFESSIONAL POWER AMPLIFIER
BASIC SETUP
UNPACKING
2 POWER LED POWER
FRONT PANEL FEATURES
3 SIGNAL ACTIVITY LEDS SIGNAL
5 FAULT LEDS FAULT
7 IEC MAINS CONNECTOR
BACK PANEL FEATURES
U.S. DOMESTIC AC MAINS CORD
NOTE FOR UK ONLY
11 GROUND LIFT SWITCH
10 MODE SWITCH
13 COMBO INPUT CONNECTOR
9 SPEAKON OUTPUTS
15 CROSSOVER SWITCH 150 Hz X OVER
14 LOW CUT SWITCH
INDUSTRIAL AND COMMERCIAL INSTALLATIONS
16 THRU/LOW OUT JACKS
levels occur Then, as temperatures in the amplifier heat sinks increase, the automatic thermal-sensingcircuitry will cause high-speedoperation to occur. Depending upon signal conditions and amp loading, high-speedfan operation may continue or the fan may cycle continuously between high and low. This situation is quite normal. If cooling is inadequate, however, the amplifier thermal-sensingsystem may cause temporary shut down of the unit, indicated by the LEDs on both channels going dark. Inadequate cooling may be due to preheated air, reduces air flow resulting from blockage of inlet/outlet ports, severe amplifier overload, or short circuit conditions. Depending upon the available cooling air, operation should be restored relatively quickly, and the power LED on both channels will again be illuminated. In any event, action should be taken to correct the cause of the thermal shutdown. If the amplifier is not severely overloaded or shorted and air flow is normal in and out of the amplifier, then steps should be taken to provide a cooler environment for all the amplifiers. As a general rule, the cooler electronic equipment is operated, the longer its useful service life
AMPLIFIER CONFIGURATIONS
Page
RATED OUTPUT POWER
SPECIFICATIONS
Stereo mode EIA both channels driven
4 Ohms EIA, 1 kHz, 1% THD
