Lpf; Notch - Krell Industries EVOLUTION 707 Owner's Reference Manual

Reference surround sound preamp / processor

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LPF – Low Pass Filter

Below is a graph of the LPF. The graph also shows what happens when you change

the FREQ parameter of the LPF ﬁ lter. Notice how the -3 dB point changes frequency.

The FREQ parameter is the only parameter you can change on the HPF.

Notch – Notch Filter

Below is a graph of the Notch Filter. The graph also shows what happens when you

change the Shape parameter of the Notch ﬁ lter. Notice how the width of the notch

changes. The Frequency parameter of the notch ﬁ lter moves the notch across the

frequency band.

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