The High Pass/Notch band is switchable between high pass filter and notch EQ functions. By default, this band is set to High Pass Filter.
Attenuates all frequencies below the Frequency setting at the selected slope while letting all frequencies above pass through.
Attenuates a narrow band of frequencies centered around the Frequency setting. The width of the attenuated band is determined by the Q setting.
The High Pass and Low Notch EQ controls and their corresponding graph elements are displayed on-screen in gray. The following control values are available: