Crown Audio IQ-MSD Turbo Software - Manual (Page 130)

IQ–MSD Turbo 1.4 Advanced IQ System Software
Page 130
On/Off: Turns the associated filter on and off.
Type: Sets the shape and roll-off rate (or order) of the filter. Seven filter shapes are available:
LP Low-Pass Crossover Filter
The low-pass filter is available in several forms:
LP B1 = 1st-order Butterworth
LP B2 = 2nd-order Butterworth
LP Be2 = 2nd-order Bessel
LP B3 = 3rd-order Butterworth
LP Be3 = 3rd-order Bessel
LP B4 = 4th-order Butterworth
LP Be4 = 4th-order Bessel
LP LR4 = 4th-order Linkwitz-Riley
HP High-Pass Crossover Filter
The high-pass filter is available in several forms:
HP B1 = 1st-order Butterworth
HP B2 = 2nd-order Butterworth
HP Be2 = 2nd-order Bessel
HP B3 = 3rd-order Butterworth
HP Be3 = 3rd-order Bessel
HP B4 = 4th-order Butterworth
HP Be4 = 4th-order Bessel
HP LR4 = 4th-order Linkwitz-Riley
LOWSHLF1 Low-Pass Shelving Equalization Filter
This filter type is available in only one form:
LOWSHLF1 = 1st-order
HISHLF1 High-Pass Shelving Equalization Filter
This filter type is available in only one form:
HISHLF1 = 1st-order
LP EQ2 Low-Pass Equalization Filter
This filter type is available in only one form:
LP EQ2 = 2nd-order
HP EQ2 High-Pass Equalization Filter
This filter type is available in only one form:
HP EQ2 = 2nd-order
PAR EQ2 Parametric Equalization Filter
This filter type is available in only one form:
PAR EQ2 = 2nd-order
Note: 1st, 2nd, 3rd and 4th-
order responses result in 6, 12,
18 and 24 dB/octave roll-offs,
respectively.