VLZ4 Multi-Channel Compact Mixers A legend in compact mixer design, performance and durability, Mackie VLZ is the original no-nonsense mixer series. Offering more bang for your buck, the redesigned VLZ4 line now includes Mackie's industry-proven Onyx preamps for crystal-clear sonic clarity. The comprehensive VLZ4 line delivers the proven feature set, high-headroom/low-noise design and "Built-Like-A-Tank" construction that created an industry more than 20 years ago. From every input to every output, VLZ4 is optimized to deliver professional-quality results each and every time.