Sidekick passive box 1/4 in to XLR3M the sidekick passive box Hosa Technology makes it easy to connect your guitar bass keyboard directly mixing console features isolation transformer that transforms instrument-level signal line-level signal works with each the following. Electric guitars basses and keyboards pedal effects and effects processors. Any electronic musical instrument with mono phone output. Use the sidekick go direct for a pure clean noise-free tone that perfect for digital signal processing (DSP) throw the inst/line switch line position allow your amp drive the line for natural overdriven tone. Either way it s your sound all of it.