If you work with Bass Music, EDM, Rap and R&B, the Nu Mu is a treat. (If you do Rock/Metal/bands/etc you need to check the Vari Mu) 2 Valves per channel, a sexy metering system, knobs have not steps, making in a bit tricky to recall, but for what it delivers, it's a details that can be pardoned. Manley is such a mighty brand!