Audio Precision

Audio Precision

Audio Precision is an American test and measurement company founded in 1984, headquartered in Beaverton, Oregon. The company is the industry reference standard for audio test and measurement, producing the APX series of audio analyzers used by engineers worldwide to characterize the performance of audio electronics. Audio Precision analyzers measure parameters such as THD+N, frequency response, signal-to-noise ratio, dynamic range, crosstalk, and impedance across analog and digital audio interfaces.

The APX platform supports a wide range of interfaces including analog balanced and unbalanced, AES/EBU, S/PDIF, HDMI ARC/eARC, Bluetooth, and automotive audio buses such as A2B and MOST. Audio Precision instruments are used at every stage of audio product development — from component characterization and circuit design through production testing and regulatory compliance verification.

Key Product Lines

• APX515 and APX516 — entry-level and mid-range audio analyzers for R&D and production testing
• APX525 and APX526 — two-channel and multi-channel analyzers for professional and automotive audio
• APX555 — flagship audio analyzer with ultra-low noise floor for the most demanding measurements
• APX1701 — transducer test interface for loudspeaker and microphone characterization

Industries Served

Audio Precision equipment is used by consumer electronics manufacturers, automotive audio system developers, professional audio equipment makers, hearing aid manufacturers, semiconductor companies, and contract test laboratories. Their analyzers are also applied in regulatory compliance testing for CE, FCC, and other international certifications.