EARTHQUAKER DEVICES FOUR TO ONE MIXER routerThe Four to One mixer is a simple and compact 4 channel mixer with independent level controls and selectable phase for each channel. This was primarily designed to be used with our One to Four Splitter to create 4 parallel signal paths, but it can be used just about anywhere you need to mix four different sources into a single output. This high headroom device features a high 1 Mohm input impedance and a low 100 ohm output impedance ensuring all