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Top type means: crossover type for the L/R channels. This parameter is linked for both channels.
Sub type means: crossover type for the Sub channels
There are different types of crossover characteristic selectable:
OFF -> no crossover, the channels work at full range, valid for L/R amplifiers only.
L-R 48 -> Linkwitz-Riley 48 dB/octave (default)
L-R 24 -> Linkwitz-Riley 24 dB/octave
L-R 12 -> Linkwitz-Riley 12 dB/octave
BUT 48 -> Butterworth 48 dB/octave
BUT 24 -> Butterworth 48 dB/octave
FIRST6 -> First order filter or 6 dB/octave
Sub freq and Top freq means: the crossover frequency. This is freely selectable.
Sub lo cut means: the frequency where the 48dB/octave subsonic filter will be active. Valid
parameters are: OFF or 10 to 80 Hz. Filter slope is L-R48 and cannot be changed.
Sub phase: when set to OFF, the sub channel is in phase with the L/R channels. When set to the
“ON” position, sub phase is 180°, also called phase reverse. If the low frequency response of
your system is insufficient, experiment with the phase setting first.
Fine tuning can be done via the DELAY menu.
EQUALIZER ON or OFF
BAND: select band 1 to 4
TYPE: select equalizer type: HPF, LO SHELF, PEAK, HI SHELF, LPF
FREQ: select equalizer frequency
GAIN: set equalizer gain
Q: set Q-factor
All equalizer frequencies can be freely selected.
These Q-factors are selectable:
0.08 , 0.12 , 0.18 , 0.25 , 0.35 , 0.50 , 0.71 , 1.00 , 1.41 , 2.00 , 2.83 , 4.00 , 5.66 , 8.0 ,
11.3 , 16.0
The higher the Q-value, the more narrow the bandwidth of the equalizer.
If you are not familiar with equalizer settings and Q-factors, leave the Q-factor to its default
setting of 0.71!
HPF stands for high pass filter: all frequencies below the selected frequency will be cut.
LPF stands for low pass filter: all frequencies above the selected frequency will be cut.
NOTE: with a Q-factor of 0.71 (default), the -3 dB point equals the selected frequency for HPF
and LPF. HPF and LPF have a fixed slope of 12 dB/octave.
CROSS-OVER
EQUALIZER
