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Active Audio StepArray Series Manual
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Contents
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3.2 ProcessorsThe StepArray range provides a full set of listening ranges4 and audience tilting angles to suit any public addresssituation. The listening areas, as described on figure 9, are listed on table 2. The nominal situation correspondsto the conditions for which the column has been designed. By specifying the effective positioning of the columnand the shape of the listening area in the Directivity bloc of SAdrive, the DSP filtering parameters are automaticallyadjusted to the situation.Choose the column which covers the most of the listening area.FloorθdminhListening area0 RangeFigure 9: Listening area definitionModel Height Nominal altitude h Audience Range 500Hz-2kHz Min. distance Channel(standing/seated audience) angle (θ) (±3dB / ±5dB) (dmin) countSA100P 1m 2.5m / 2.1m Flat (0-5°) 15m / 21m 1m 3SA180P 1.8m 2.5m / 2.1m Flat (0-5°) 30m / 40m 1m 3SA250P 2.5m 2.5m / 2.1m Flat (0-5°) 35m / 45m 1m 6SA400P 4m 3.0m / 2.6m Flat (0-3°) 68m / 90m 1m 6SA180S 1.8m 3.0m / 2.6m Tilted (5-20°) 22m / 29m 4m 3SA250S 2.5m 4.2m / 3.8m Tilted (5-20°) 28m / 36m 4m 6Table 2: Specific characteristics of StepArray column models.3.2 ProcessorsThe UT26 processor has 6 output channels, therefore it can deliver signals for two 3 channel columns, or one 6channel column.It is also possible to connect two 3 channel columns with different signals on the same processor to obtain a stereosound. Independent settings are available for directivity, equalization, and delays. All these settings can be savedand recalled remotely thanks to presets.More details on wiring can be found in section 9.1.3.3 AmplifiersThe MPA6150 amplifier is capable of delivering 6 × 150 watts under 4Ω load, or 6 × 100 watts under 8Ω loads.More details on wiring can be found in section 9.1.4The range of a column is defined as the maximum distance from the column for which the mean sound level for the octaves 500Hz, 1 kHz,and 2 kHz remains within ±3dB or ±5dB.Last update: December 23, 2010 13 |
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