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To adjust the parametric equalizer settings for a channel:
1 On the appliance Web UI’s main page, select DSP.
2 Select the Menu button for the channel.
3 From the drop-down menu, select Parametric EQ.
4 Adjust frequencies as desired, ensuring the Enable LEDs are green for each selected
frequency. You can adjust the frequencies by moving the Freq knob or by double-
clicking the knob and typing the frequency. When typing the frequency, only numeric
values from 20 to 20,000 can be entered.
5 Make desired Q adjustments by adjusting knob (or double-clicking and typing the
desired adjustment). Q can be from 0.1 to 20 and sets how wide to either side of the
selected frequency the adjacent frequencies are affected.
Q is the Quality or Quality Factor, which refers to the bandwidth of one band of a
p
a
rametric equalizer. Q is calculated by dividing the center frequency in Hz by the
width of the boost or cut zone, +3 dB or -3 dB above or below 0 dB.
6 For each frequency, use the Gain knob or double-click the knob and type the gain to
either boost (turn up) or cut (turn down).
Gain knobs can be moved between +12 or -12 dB. By default, each knob is set at 0 dB,
wh
ich means that no frequencies are being boosted or cut.
7 Select Save Settings to Server.
Peak Limiter
The primary purpose of the Peak Limiter is to eliminate very high signals, which can not
only create unpleasantly loud sound, but potentially cause mechanical damage to the
speaker. Any signal that exceeds the threshold will be compressed, thereby reducing the
signal.
This type of limiter is triggered by the peak, or loudest part, of a signal, not the overall
st
rength or volume. This means it can be triggered any time the signal exceeds the spec-
ified threshold, however briefly. This is in contrast to the RMS Limiter, which is triggered
b
y
a signal whose level exceeds the threshold over a period of time.
The primary purpose of the Peak Limiter is not typically to shape or enhance the audio
signal, but to limit any (hopefully uncommon) signals that exceed the mechanical toler-
ance levels of the speakers.
Note: If you want to return to the factory settings, select the Reset icon that appears in
t
h
e right corner.
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