Mackie Studio Mixer Mackie 1604-VLZ4 Studio Mixer ups the level of sonic quality at every level, featuring Mackie's flagship Onyx mic preamps and premium components from front to back. The result is the most rock solid, the most easy to use and, yes, the best sounding compact mixer ever createdNow featuring Mackie's flagship Onyx mic preamps, the comprehensive Mackie VLZ4 line delivers the proven feature set, high-headroom/low-noise design and "Built-Like-A-Tank" construction that created an industry more than 25 years ago. From every input to every output, VLZ4 is optimized to deliver professional-quality results each and every time. There are 16 onboard, studio-grade Onyx mic preamps that are designed for low-input applications. The preamps offer an ultra-wide 60 dB gain range and 128.5 dB dynamic range. With an extended frequency response, the preamps also offer incredibly low distortion levels.