The MultiSelector PRO is a premium unidirectional 4-to-1 instrument switcher that incorporates innovative features demanded by touring professionals. This 1U rack unit allows selection from any of four inputs routed to a single output. All four inputs feature electronic buffering circuits providing 1 MΩ input impedance, delivering pristine frequency response when used with instruments equipped with passive pickups. Signals pass through with exceptional clarity and no audible coloration, while the digitally controlled opto-switching process ensures completely silent operation. With extremely low noise floor and high channel isolation, the MultiSelector PRO stands as the perfect choice for the most demanding professional applications.