27U Slam Rack Case27U Slam Rack Case A 19" rack flight case sized at a true 27U with a quick release slam lid built for the touring environment, so a full amplifier rack, mixing engine, or control system can survive a drop off a tail lift and fire up flawlessly on stage. Most case makers jump straight from 24U to 28U. We build the 27U because the right case is the one that fits your rack exactly no half empty units, no wasted weight in the truck. The Nomad 27U Slam