Alto Professional Zephyr ZMX-244FXU 24-channel, 4-bus mixing desk featrues 18 microphone inputs with balanced TRS jacks and instert points, a three-band EQ with a sweepable mid frequency on 16 channels, and four channels of stereo inputs with 4-band fixed EQs. Alto Professional Zephyr ZMX-244FXU comes loaded with 16 variations of 16 professional effects including room and space delays, small and large hall acoustics, plate and spring reverbs, flangers, chorus and more. Zephyr ZMX244FXU also features a USB port that streams two channels of 24-bit audio out to your computer (Main Mix or Sub Mix 1/2) so you can record band rehearsals, club gigs, speaking engagments, worship meetings, and any other live performance reinforcment sitation.