User manual

4REA4 Controller Software User Guide

V1.30

2.7 Ext In

You can assign an external input to any Mix channel, for example for bus summing, combining console

outputs, or external communications. The Ext Input sums with the Mix channel pre-insert and is affected by

the Mix processing and fader.

Open the Source Select drop-down menu to choose which source to patch, click the Socket box then hold

and drag the mouse to select the required socket or channel number, then click Apply. Socket Gain and

Trim controls are shown in this page when an Ext In is assigned.

2.8 Filter

The Filter page provides access to the HPF and LPF filters.

Graph – Click and drag the HPF (orange) or LPF (magenta) dots to adjust the filter cut-off frequency.

HPF – The frequency for the High Pass Filter is adjustable from 20Hz to 2kHz, and the Slope can be

selected from 12dB/octave to 24dB/octave. Two filter types are available: Butterworth (optimized frequency

response) and Bessel (optimized phase response).

LPF – The frequency for the Low Pass Filter is adjustable from 20Hz to 20kHz. The slope is fixed

12dB/octave.