Here we have (from left to right) the Juicedlink RM333 “Riggy” ($399), the Azden FMX-DSLR ($261), and the Beachtek DXA-SLR ($285)¬†audio adapters. It’s easy to see that all three of these units are very similar in design, square boxes that are about the same form factor with a handful of volume control knobs on the […]