Usually 3-5 Days. 45 Day Lowest Price - 100% Satisfaction Guarantee. Micro-Tech is the original industry standard for touring amplifiers. Micro-Tech amplifiers are known around the world as the benchmark for high-density, ultra-pure power in a compact, lightweight package. In addition, each model gives you Crown's legendary ODEP protection to keep the show going long after other amplifiers would fail.Crown's first touring workhorse, the Micro-Tech Series, delivers industry standard performance and reliability.