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Filter featuresThe DSP of the <strong>DAP</strong> <strong>26</strong> comes with many different filter types which are combinableas desired. In the following you can find some short information about the filters andtheir usage.Context between bandwidth and the „Q“ factorBandwidth Q comment Q Bandwidth comment(octaves) factor factor (octaves)0,5 2,9 Narrow 0,4 3,0 wide1,0 1,4 ... 1,4 1,0 ...1,5 0,9 ... 2,4 0,6 ...2,0 0,7 wide 4,4 0,3 narrowParametric filtersThe so called ‚parametric’ filters are widely used in professional audio equipment, forexample in mixing desks or speaker processors. The curve of this filter is describedwith certain parameters, mainly the centre frequency, the bandwidth and the gain(boost/cut) of the filter. Combinations of these parameters can control the frequencyresponse of an acoustical system.