Copland DRC205, Руководство пользователя

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On the Bi Quad graph the resulting response of the Peaking Filter may be observed, and the
resulting Target Curve may be observed on the Target graph.
An example of a 1000 Hertz Peaking Filter with Q = 0.5 and Gain set at +5 dB can be seen
below:
Shelving Low Filter
The Shelving Low filter increases or decreases the SPL on lower frequencies (lower than Fc ).
The Shelving filter is very well suited to change the balance between low frequencies and high
frequencies of the stereo system.
The Shelving filter is very well-suited to adjust the SPL of a loudspeaker driver unit that either
have too high SPL or too low SPL compared to the other loudspeaker driver units in the
loudspeaker system.
Important note: Respect the guidelines provided in the previous section for
optimum usage and results.
To use the Shelving Low filter, select Shelving Low in Filtertype .
Set the Fc (Attach frequency or centre frequency) of the Shelving Low by inputting the desired
frequency into the Fc input box.
Select the Q (bandwidth) for the function of the Shelving Low Filter. Low Q (below 1.0) results
in filters affecting a wide frequency band – and high Q (above 1) results in filters affecting a
narrow frequency band.
Important note: If you do not have full technical understanding of the Q-factor for
filters, then you should not change the
Q factor outside the 0,1-1.0 ranges.
Slide the [ GAIN ] until the desired SPL is obtained – either by gain (up to +6dB) or by
attenuation (up to –6dB).