Turbosound LMS-D6 - Filter Response Graphs; Highpass and Lowpass Filter Curves; Notch Response Curve Illustration

user manual
LMS-D6
LMS-D6 user manual
Page 21
Figure 4 - Highpass filter curves.
Figure 5 - Lowpass filter curves.
Figure 6 - Parametric filter with high 'Q' to achieve notch response.