Audio Precision, Inc. products

APx555B Series High-Performance, Modular Two-Channel Audio Analyzer. The APx555 is a two-channel audio analyzer without compromise. Developed for R&D engineers and production technicians who need the highest possible performance, a broad range of digital I/O options and fast, intuitive software, the APx555 is the  standard for audio analyzers.

APx52x B Series Modular, Two- and Four-Channel Performance Audio Analyzers. The APx525B Series is a two-channel audio analyzer for R&D engineers and production technicians who want fast and easy audio testing.

The APx515B Series is a performance audio analyzer optimized for production test. It is a best-in-class instrument, offering a powerful combination of speed, performance, automation, reliability and ease-of-use. It can make all key audio measurements in less than three seconds.