For over thirty-five years, AP has offered high-performance audio analyzers, accessories and applications to help engineers w ... orldwide design, validate, characterize and manufacture consumer, professional and industrial audio products. Ongoing innovation has been a key theme for the organization since its founding, with market-leading THD+N performance, a wide range of digital interfaces, software that combines power with ease-of-use, and tools for electro-acoustic and perceptual audio testing. Headquartered in Beaverton, Oregon, AP is part of the high-tech “Silicon Forest” of the greater Portland metropolitan area. read more