The Zoom H4n is one of the most popular portable audio recorders for DSLR Film Makers. With tons of features and inputs, it's probably under utilized most of the time. Just in case you're looking to expand those features even more, Zoom has released new firmware for you to adjust the levels of your XLR inputs seperately. More info at the jump: https://www.zoom.co.jp/english/download/software/h4n.php