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Data Sheet

APx517B Acoustic Analyzer

Acoustic Production Test Redefined


Audio Precision APx517B Acoustic Analyser front panel


  Introducing an integrated acoustic test system, complete with audio analyzer, power amplifier, headphone amplifier, and microphone power supply, along with an array of digital interface options.  




Built for Production Test

From headphones and headsets to speakers (passive, active, or smart), manufacturing test presents its own set of unique demands for a test system. Functionally speaking, a traditional test system would be comprised of several individual components—from different vendors—include a sound card for signal generation and acquisition, a microphone power supply, an amplifier (power or headphone), and possibly a digital interface (e.g., Bluetooth®). The production test engineer has the complex job to source these components on a very limited budget, configure and calibrate them to function as single test system, and troubleshoot any individual component issues to ensure the production line stays “up.”

The APx517B is specifically designed to streamline this process. An integrated system for the acoustic test of headphones, headsets, microphones, and speakers, this new instrument is a revolution for production test engineers and technicians needing drastically reduce setup and reconfiguration time without sacrificing quality, reliability, or measurement performance. With an easy setup of less than five minutes (for a variety of device types), and a reliable and robust system that combines unbeatable hardware and software, the APx517B saves time on setup so the line can focus on production. Additionally, and unlike the individual components of traditional systems, the APx517B has a specific impedance measurement accuracy and is delivered with an accredited ISO/IEC 17025 calibration. 

Audio Precision Production Test






Fast Setup and Reconfiguration


Audio Precision APx517 Acoustic Analyser Loudspeaker Test


  On a production line, any time spent setting up a new test system, calibrating a system for a new shift, or reconfiguring a system for a change in DUT (device under test), is effectively a “line down” situation. The APx517B has the power to drastically reduce setup and reconfiguration time by eliminating multiple individual components (from a variety of vendors) and their associated cabling.  


Quality and Reliability

  Most, if not all, current acoustic analysis systems are an assortment of individual components from different vendors. As such, an additional “line down” risk of these systems is the quality and reliability of each component, along with the configuration of each connection point. In contrast, the APx517B is an integrated system engineered and assembled to the same standard as all other APx analyzers and is delivered with a three-year warranty and accredited calibration. For 36 years, the equal to AP analyzers’ reputation for performance and measurement accuracy is the long-standing recognition of their quality and reliability.  

 Audio Precision APx517 with KEMAR




"Out-of-the-Box" Demonstration Videos


Headphone Test Setup

From “out-of-the-box” to audio test in under five minutes. Watch and learn how quickly the APx517B is setup and ready to evaluate headphone performance.



Speaker Test Setup

From “out-of-the-box” to audio test in under five minutes. See how easy and quick it is to setup the APx517B for the measurement of a passive speaker.



Bluetooth Headphone Test Setup

From “out-of-the-box” to audio test. Watch and learn how to quickly setup the APx517B—equipped with an optional digital I/O module—for the evaluation a set of Bluetooth headphones with an integrated microphone, and see the optional digital I/O module in use.




APx517B or APxFlex?


Depending upon your manufacturing program, along with the types of acoustic devices you’re testing, there are two primary APx solutions from which to choose: APx517B and APx500 Flex.

The APx517B is an all-in-one system, complete with an audio analyzer, power amplifier, headphone amplifier, and microphone power supply, along with the ability to add an optional digital interface. If testing digital devices—for example Bluetooth headphones or an HDMI soundbar—then the digital module capability of the APx517B will be key. Also, for a production line that sees a range of different devices, the incredibly fast setup or reconfiguration capability of the APx517B should be of great benefit.

For manufacturing lines that are more cost-sensitive and/or limited to producing analog-only devices, the APx500 Flex audio analyzer is the better choice. Comprised of APx500 measurement software—enabled via an APx500 Flex Key—paired with an ASIO-capable audio interface, APx500 Flex delivers the power and versatility of APx audio measurement software to your production line.

APx500 Flex button

   APx517B or APxFlex



Tech Notes


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TN143 – Headphone EA Measurements

Discover the key electroacoustic measurements used to characterize the audio quality of headphones and earphones.