MXP124FX is a 12-input analog stereo mixer with a bidirectional USB audio interface and 100-preset 24-bit effects. It features four MDR mic preamps with 3-band EQ, gain trim and high-pass filters, plus four stacked stereo inputs for additional sources. The mixer provides selectable 48 V phantom power, two single-knob compressors, and one pre-fader aux per channel, with Main Mix, Mix 2, Phones and Tape outputs for monitoring and recording.