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Altec 9442A & 9442A/SA Anniversary Series Power Amplifier

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Altec 9442A Amp page 1

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9442A and 9442A/SA Anniversary Series Power Amplifiers
• REAR MOUNTED LEVEL CONTROLS TO REDUCE "ACCIDENTAL" CHANGES
• CONVECTION COOLING IS USED FOR QUIET OPERATION
• ELECTRONICALLY BALANCED INPUTS

DESCRIPTION


The 9442A and 9442A/SA Anniversary Series power amplifiers are identical except for the addition of precision stepped attenuators on the 9442A/SA. Each channel delivers 100W of continuous average power into 80 or 150W into 40 over the tull audio frequency range.

Convection cooling is used for quiet operation. The massive heatsinks and associated control systems are optimized together for maximum performance and protection. In a typical fixed installation, this means that long term reliability is substantially increased.

The universal power transformer is as large as some used in amplifiers twice the power rating. Each channel is protected against:
• Over-temperature • Radio frequency interference
• Excessive output shift • Shorted outputs

The load is protected from startup/shutdown transients, subsonic signals, low ac line voltage, and DC faults. When a problem is detected, the output relay automatically disconnects the load from the channel and illuminates the "Protect" LED on the front panel. The 9442A and 9442A/SA have electronically balanced inputs and powered octal accessory sockets for plug-in transformers and electronic modules. Two 70 volt output balancing transformers, models 15523A (1701N) and 15524A (300W), and a 300 watt autotormer, model 15567A are also available.

 

 

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