Altec Lansing Industrial Professional Sound Products Spec site

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Altec 2280A Incremental Power System Amplifier

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Altec 2280A Amp page 1

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DESCRIPTION

The 2280A Incremental Powerl~ System consists of a main frame that accepts up to eight plug-in 70V, 78-watt power amplifier modules. For each of the eight channels, an accurate stepped attenuator reduces input signals in discrete increments of 1 dB steps, to a maximum of -63 dB. Balanced input may be obtained with optional plug-in transformer modules. A plug-in primary ac line power module controls ac power to the system with an ON-OFF switch, and adapts the system for operation at 100V, 120V, 200V, 220V, or 240V.

The 2280A Incremental Power System offers many capabilities to achieve optimum results for a sound reinforcement system. Up to eight separate 70-volt speaker zones may be powered from a single main frame. Complex sound systems may be powered by combining two or more Incremental Power Systems.

The 70V power amplifier modules may be parallelled in increments of 78 watts to meet most conceivable audio applications. The parallel mode for these modules may drive high power, low impedance load; high power, 70-volt lines; or a variety of other loads.



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