15
PEQ Menu (Parametric Equalizer)
The parametric EQ (PEQ) menu allows for up to 8 bands of custom equalization, and also allows customization of the EQ
generated from the “AUTO EQ” function of the APA1200DSP. All filters are implemented as infinite impulse response or
IIR filters, which is standard for most PEQ interfaces.
A. EQ Control Buttons
1. Disable All EQ – Turns OFF all EQ bands. Does not reset values. Useful for doing before and after
comparisons with EQ.
2. Enable All EQ – Turns ON all EQ bands. Does not change values. Useful for doing before and after
comparisons with EQ.
3. Reset All EQ – Resets all EQ values to default (flat). Does not change enabled/disabled status. There
will be a slight delay.
B. Graph - The graph will show the effects of all enabled EQ bands. Each enabled EQ band will have its own
corresponding purple and yellow dots on the graph for easy control.
1. Purple Dot – Drag the dot to change the frequency and gain values of each enabled EQ band
2. Yellow Dot – Drag the yellow dot to change the Q value of each enabled EQ band. Moving the
yellow dot away from the corresponding purple dot will reduce the Q value, and moving the yellow
dot towards the purple dot will increase the Q value. (Larger Q values will affect a smaller range of
frequencies, smaller Q values will affect a larger range of frequencies)
C. Channel Mode - Change which channel the filter is to be applied to. Link mode will apply the same filter
to both, but you can also set individual filters for each channel (A and or B) if the APA1200DSP is used in
stereo mode.
D. See next page
E. See next page
