Here's what Electro Harmonix say about the Switchblade Plus Advanced Channel Selector:
Route your signal to either output A or B, or send it to both at once. Connect a tuner or effects pedal to its dedicated Tuner output. With a fully passive audio path and active LED indication, the EHX Switchblade+ is your utilitarian sidekick.
- Route your signal to output A or output B or both simultaneously - Easily switch between different pedal boards - The tuner jack is hardwired to the input jack and provides a direct output for a tuner or other effects regardless of the state of the unit - The audio path is completely passive
