Altec Lansing 2280B
Multichannel Incremental Power System
The Altec Lansing 2280B Incremental Power System consists of a main frame unit that accepts up to eight plug in 70.7V, 78 watt power amplifier modules. There are two different input modules available for the 2280B, one with stepped attenuators (2285A) and one without (2284A). The accurate stepped attenuators reduce input signals in discrete increments of 1dB steps, to a maximum of -63 dB per channel.
The 2280B 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 70.7V power amplifier modules may be paralleled in increments of 78 watts to meet most conceivable audio applications. The parallel mode for these may drive high power, low impedance loads; high power, 70 volt lines; or a variety of other loads.
Accessory modules may be added to shape the overall performance to the users specifications.
Power output: 78W (8 channel), 624W into 8Ω (mono)
Frequency response: 10Hz to 50kHz
Total harmonic distortion: 0.1%
Damping factor: 35
Gain: 39.5 dB
Input sensitivity: 0.95V
Dimensions: 178 x 483 x 448mm
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