It features two world-class microphone preamps with phantom power and plenty of gain to ensure robust amplification even for low-output ribbons and classic dynamics such as the Shure SM7B. It can also accept line-level signals or direct connections from instruments such as electric guitar and bass. With two balanced analog 1/4" TRS line/monitor outputs and a stereo 3.5mm headphone output, the Duet 3 can feed a set of monitors and your favorite headphones at the same time. The main and headphone outputs are independently addressable, giving the flexibility to route separate mixes to an artist in the studio, a performer onstage, or a house PA system.