The Alesis M1 Active 330 USB Desktop Studio Monitors are a pair of professional monitoring speakers designed for multimedia and mixing applications. The M1 Active 330 USB Studio Monitors also features an integrated audio interface boasting high sample rates up to 16-bit/48kHz for quick and simple recording. At the heart of the M1 330 USB Monitors is a 3-inch aluminium low-frequency driver and a 1-inch silk dome tweeter with crossover for optimal audio performance. The wide frequency range and separate drivers ensures optimal audio fidelity for optimal sound reproduction. The high-density wood cabinets help to minimise unwanted resonance for truly defined low-end sound. The built-in interface can also be used for line-level turntable keyboards mixers CD/tape players and more for added flexibility.