The M1Active 520USB is a studio monitoring system from Alesis designed for professional studio use with an internal digital-audio interface.
At the heart of the M1A520USB is a pair of active, bi-amplified, two-way reference monitors that play from 20,000 Hz all the way down to 56 Hz to cover nearly all frequencies audible to human ears. You can take USB digital signal out of your computer via USB and input it to the M1A520USB for low-noise, low-distortion performance.
Priced attractively for any studio's budget, the M1Active 520USB perform with linearity, clarity, and neutrality typically reserved for monitors that cost much more.
In addition to their capabilities as traditional monitor loudspeakers, the M1A520USB monitors contain a USB audio interface. Connected audio sources such as mic preamps and instruments can be recorded directly into your computer at 16-bit, 44.1 or 48 kHz. Simply plug the USB cable into your computer. No special drivers required. And when it's time to listen back to your mixes, that same USB cable sends 16-bit, 44.1 or 48 kHz, stereo audio from computer to your M1Active 520 USBs. No more complicated interfaces and messy cable tangles.