Crown Audio 133472-1A manual Bad Sound, Amp Overheating

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Chapter 2: Troubleshooting

2.3 Bad Sound

 

 

 

Are ODEP

 

 

 

indicators (if

Yes

Bad Sound

 

equipped) dim or

 

 

 

off?

 

 

 

 

 

 

No

 

Is source signal

No

Check levels and/or

 

clean and

indicators at source

 

undistorted?

 

level for clipping.

 

 

 

Are the IOC or

 

 

 

Clip indicators (if

Yes

 

 

equipped)

 

 

 

Yes

 

flashing or on?

 

 

 

 

Amp overheating.

See "Amp

Overheating"

flowchart.

Check amp for clipping.

Figure 2.4

Bad Sound

Possible Causes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is there a

 

 

See "Hum and

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

Hum or Buzz

Yes

 

Buzz" in

 

 

 

 

 

 

sound?

 

 

Section 1.2.2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Are input and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output

 

No

 

No

 

 

 

 

 

connections o.k.?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

Refer amp to

 

 

 

 

 

 

 

 

 

 

service center.

 

 

 

System Gain

 

Amp not adequately

 

Structure. See

 

cooled. See "Amp

 

"Setting System

 

Overheating"

 

Gain Structure in

 

flowchart.

 

Section 1.6.

 

 

 

 

 

 

 

Secure input and

 

 

 

output connections.

 

 

 

 

 

 

 

 

2.4Amp Overheating

Amp

Overheating

Are the filters

 

 

Clean or replace

(if equipped)

Yes

 

 

filters.

clogged?

 

 

 

 

 

 

 

 

 

No

Is the amp

 

 

See "Rack Cooling" in

 

 

Section 1.1, and info

getting enough

No

 

 

on amp cooling in

cool air?

 

 

 

 

Operation Manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

Figure 2.5

Amp Overheating

Is the amp

operating within

Lower impedances cause amps to dissipate more

its rated

Yes

heat. See "Amplifier Load

impedance?

No

Refer amp to

service center.

Impedance" in Section 1.3.2.

Amplifier Application Guide

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Contents Amplifier Application Guide Important Safety Instructions Crown Technical Support GroupTable of Contents Introduction This Chapter ChapterRack Cooling Fan-Assisted ModelsConvection-Only Models Input Connector Wiring System WiringInput Wiring Balanced, Grounded SourceUnbalanced, Grounded Source Twin-Lead Shielded Cable Unbalanced, Floating Source Twin-Lead Shielded CableHum and Buzz Solving Input ProblemsRadio Frequencies RF Balanced vs. Unbalanced Output WiringOutput Connector Wiring Way Binding PostNeutrik Speakon Output Wiring TipsBarrier Block Connector Assembly Insert into Connector Housing Parallel Speaker Impedances Connecting the Speakon plug to the mating connectorAmplifier Load Impedance Parallel Impedances Determining Appropriate Speaker Wire Gauge Loudspeaker ProtectionLoudspeaker Fuse Nomograph Solving Output ProblemsHigh-Frequency Oscillations Distributed Speaker Systems Sub-Sonic CurrentsMulti-way Systems With Expansion Modules Using Low-ImpedanceWhat is Constant Voltage? Active vs. Passive Crossover NetworksCrown Amplifiers In-Depth Fault Status External Circuit Design RJ Jack Wiring and Pin Assignments Optimal System Headrom Fault MonitoringSetting System GainSystem Levels Amplifier LevelTroubleshooting No Power No PowerNo Sound No SoundBad Sound Amp OverheatingBCA EMI Fader FaultEqualization EQ FrequencyIOC OdepPIP PIP2THX Handbook for Sound Engineers The New Audio Cyclope- dia AppendixAudio Systems Technology, Level What the Warrantor will do Items Excluded from this Crown WarrantyHOW to Obtain Warranty Service Disclaimer of Consequential & Incidental DamagesFull Warranty Three Year

133472-1A specifications

Crown Audio 133472-1A is a sophisticated and highly regarded power amplifier designed for professional audio applications. Known for its reliability and high performance, the 133472-1A is favored by sound engineers, musicians, and event organizers who seek exceptional audio clarity and robust amplification.

One of the standout features of the Crown Audio 133472-1A is its impressive power output. This amplifier is capable of delivering substantial wattage, ensuring that it can effortlessly drive a variety of loudspeaker systems without distortion, even at high volumes. This makes it particularly suitable for large venues, concerts, and public gatherings where sound coverage is critical.

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In summary, the Crown Audio 133472-1A is a powerhouse amplifier that combines high output, advanced technologies, and durable construction. Its versatility makes it a preferred choice for professionals seeking reliable and superior audio performance in live and installed environments. Whether for music events, speeches, or any high-stakes audio requirements, the 133472-1A delivers the quality and performance essential for exceptional sound.