The Tesira EEC-4 is an expander card with 4 analog input channels that includes AEC (Acoustic Echo Cancellation) for use with the Tesira EX-MOD device. The EEC-4 is one of several optional cards that can be installed in Tesira EX-MOD.
Each EEC-4 provides 4 channels of mic/line level audio input with AEC. The inputs are electrically balanced and are provided with plug-in barrier strip connectors. Software control of each input includes input gain (0-66dB) with clip indicator, +48V phantom power, mute, level, signal invert, and AEC active/ bypass.