User guide
CUEMIX FX
78
Type IV
Figure 10-21: Type IV EQ filter style.
The Type IV EQ filter is a more extreme form of the 
Type III filter. It exhibits a high degree of 
interaction between Q and gain in order to 
maintain as closely as possible an equal amount of 
area under the response curve as gain is adjusted. 
Type IV is the most gentle of the four EQ styles and 
is ideal for large scale EQ adjustments, especially 
on sub-mixes and complete mixes. This EQ style is 
also ideal for any applications where subtle changes 
in the overall character of the sound are desired. 
For example, it can be used for mastering 
applications, such as the overall adjustments that 
must often be applied to entire tracks to match 
other tracks on the album.
Shelf filters
Figure 10-22: Shelf filter Q parameter overshoot.
When two top-most bands in the EQ tab are set to 
their shelf filter setting (Figure 10-10), the Q 
parameter controls the amount of overshoot 
applied to the response curve, as illustrated in 
Figure 10-22. When Q = 0.01 (the lowest setting), 
normal shelving is applied with no overshoot. This 
produces the response provided by a first order 
shelf. When Q = 1.0 (the default setting), the 










