Marble Index

3 Channel Alpha RGB Compositor

Depth is an illusion in the world of analog video, and Marble Index is the master of tricks. Unlike standard video mixers, which can fade and key between two sources, Marble Index has three layers. With 75 analog switches and 6 wideband faders within its depths, it is our most ambitious compositing module yet.

http://www.lzxindustries.net/products/marble-index/