Alesis has debuted its M1Active 520 USB Studio monitors at the NAMM show in Anaheim. Designed for professional studio use with an internal digital-audio interface, the M1Active 520 USB are a pair of active, bi-amplified, two-way reference speakers that provide an audio range from 20kHz down to 56Hz. In addition to the USB playback ability, the speakers come with a pair of TRS-balanced 1/4-inch inp
