The Fostex 6301B is a small, versatile monitor that has a built-in 10 watt amplifier, perfectly matched to a 10 cm full range driver, which delivers a big sound that is full of clarity. Best used in pairs, they accept any line level input, so they are ideal for use with instruments in project studios, on stage, in remote recording vehicles, video productions & multimedia presentations. Manufactured from cast aluminum, these great little monitors have earned a high reputation among production, broadcast & presentation professionals for being rugged & road worthy.