Mackie 2404VLZ4 - Large format premium quality analog mixing desk with high headroom/low noise Onyx mic preamps built in. Featurs: 24-channel 4-bus mixer featuring Mackie signature high-headroom/low-noise design. 20 boutique-quality Onyx mic preamps. Ultra-wide 60dB gain range. 128.5 dB dynamic range. +22 dBu line input handling. Extended frequency response. Distortion under 0.0007percent (20Hz 50kHz).