SE Audiotechnik I-Line Series, Instruction Manual, Page: 17 / 27

IA 202D / IA 402D Instruction Manual
Revision 3 17
6.3.3.3.
HP/LP Filter
Selected channels high-pass (low-cut) or low-pass (high-cut) filter settings can be set
in the HP/LP Filter menu.
Figure 15. HP/LP Filter Menu.
Three main parameters can be changed here:
• Type. Either HPF (high-pass filter) or LPF
•
Filter Order : User can select between 12dB/Octave or 24 dB/Octave filter slopes.
•
Frequency : User can select the cut-off (-3dB) point of the filter up to 150 Hz.
6.3.3.4. Phase Inversion
Figure 16. Phase Inversion Menu.
The Phase Inversion menu allows to switch signal phase for the corresponding
channel. Also known as polarity reverse. Two settings are available:
•
Normal. In phase setting.
•
Inverted. In this setting phase/polarity is inverted (180° phase shift for all
frequencies).
6.3.3.5. Equalizers (EQ 1 to EQ 5)
Each of IA 202D / IA 402D amplifier channels a have dedicated user equalizer section
consisting of 5 fixed configuration equalizers:
•
1x (EQ 1) Low-shelf equalizer (Gain, Frequency)
•
3x (EQ 2, EQ 3, EQ 4) Fully parametric equalizers (Gain, Frequency, Q)
•
1x (EQ 5) High-shelf equalizer (Gain, Frequency)
To modify equalizer parameters, enter the corresponding equalizer menu and modify
its parameters. Each equalizer band can be individually bypassed (default setting).
Figure 17. Parametric Equalizer Menu.
CH A HP/LP FILTER
Back
Type: HPF
> Order: 12dB/Oct
Freq: 60 Hz
Bypass: ON
CHANNEL A Phase
Back
> Normal *
Inverted
CHANNEL A PEQ 1
Back
Bypass: On
> Gain: 6 dB
Frequency: 60 Hz
Q: 1