The symetrix radius AEC mixer is a 4x8 Scalable DSP Mixer by Symetrix. In addition to its 8 AEC inputs, 4 Aux inputs and 8 outputs, the radius AEC has an expansion slot for other I/O options to accommodate other design requirements. There is a 2 line analog telephone interface card and 4 channel AEC card to provide up to 12 total AEC channels, 4 channels of analog inputs or outputs. AES-3 digital in or out.

Another DSP Chip provides for other (non-AEC) processing such as voice-lift, room combining, EQ profiles for microphones and speakers, feedback elimination, automixing etc. all in the same unit.

Many control options are available including wall panels, programmable third party touch screens, free ARC-WEB browser based interface and others.