Radius NX 4x4 (4 analog inputs, 4 analog outputs). Features 64×64 redundant Dante and identical DSP resources. The two differ only in analog I/O, logic output and external control input capacity. The reduced cost of the 4×4 makes it extremely competitive in applications where many Dante endpoints are routed to a primary DSP and fewer analog connections are required. Optional virtualized and scalable AEC coprocessor module. For conferencing applications, the dual-core coprocessor provides up to 16 channels of full bandwidth AEC with unparalleled clarity and intelligibility. USB audio port. Enables soft-codec conferencing and computer-based multitrack recording or playback. USB host port. Supports upcoming recording and archiving, audio media playback, digital messaging and automatic unit backup for rapid field swaps. 128×128 Super Matrix. A Next-generation SHARC Dual-core processor enables a composer super matrix placing the burden of large matrices in one core while freeing the second core for general purpose signal processing making it possible to design very large and complex systems around a single Radius NX. View modes make navigating through large matrices a breeze. Configurable 4-port gigabit switch. Services both Dante and control networks, eliminating or reducing the need for external switches while avoiding 100 Mbit bottlenecks. Ultra-low noise preamps. Digitally controlled 3dB steps facilitate precise gain setting resulting in unmatched sound quality. Option card slot. Accepts all radius and edge expansion cards, maximizing Radius NX input/output counts or adding special purpose functionality to reduce total system cost.