Apex Digital CloudPower Series Operation Manual page 41

USER / X-Over
The CloudPower™️ amplifier provides both a high-pass and a low-pass filters in its user interface.
These filters offer a choice of 19 different classic X-over filter types, including Bessel, Butterworth, and
Linkwitz Riley, with slopes ranging from 6 to 48 dB/octave.
Select the channel you want to control
Drag filter nodes
Clicking or swiping the latch switch will activate the selected
filter and display its curve on the chart.
To set the cutoff frequency, you can drag the nodes on the
chart, use the slider, - and + buttons, or manually enter the
value in the input field.
Both filters can be set from 10 Hz to 22 kHz.
Click the filter icon to bring up the filter selection window
70/100V System Warning
When utilizing the amplifier with a 70 or 100V transformer system,
ensure that you employ a high-pass filter (HPF) to prevent significant
transformer saturation. Our recommended configuration is a 63Hz
HPF with a 24dB/octave roll-off. The minimum response requirement
is -3dB at 70Hz with a 12dB/octave slope. Firmware version 1.3
and higher offer an additional 100Hz 12dB/octave HPF at the end
stage of the processing for this purpose. You can activate this
additional HPF through the web interface via Settings > Output.
IntelliCloud WebUI
Select the X-Over submenu
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