The ALC-404D from Community is one of their trio of Amplified Loudspeaker Controllers (ALC), with this model being their 4 channels x 400W version. The ALC series provides additional flexibility for real-world Community loudspeaker system applications with bridged channel pairs supporting driving loads down to 4 ohms at double the power of a single channel.
ALCs provide all of the signal routing, zone switching, DSP processing, protective limiting, remote monitoring, and amplification functions needed between a mixer and the loudspeakers in virtually any Community Professional Loudspeakers application. Standard Ethernet communication protocols allow for fast system design, system control, and remote system monitoring. Analog and Dante® inputs are included for quick and easy integration into any new or existing system. Community-authored loudspeaker presets include equalization, high pass filters, and multi-stage limiters tailored to each model, ensuring consistent sound quality and full loudspeaker protection in every application.