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Audio Precision APx516B Audio Analyzer

Audio Precision APx516B Audio Analyzer

0,00 kr.

  • Sine Frequency Range
    2.0 Hz to 80.1 kHz
  • Frequency Accuracy
    3 ppm
  • IMD Test Signals
  • Maximum Rated Input Voltage
    125 Vpk
  • Maximum Bandwidth
    >90 kHz

Audio Precision APx516B Audio Analyzer

Where quality meets affordability in analog & digital audio testing

With the proliferation of digital audio interfaces, there’s an increasing need for a straightforward, budget-friendly analyzer for both digital and analog audio testing. The Audio Precision APx516B Series Audio Analyzer offers a cost-effective modular solution for electronic audio customers, upholding the Audio Precision standard of performance and service. Designed for extended R&D teams and production test applications, the Audio Precision APx516B delivers comprehensive testing for analog and digital audio in a versatile, affordable package.

Affordable Analog + Digital Audio Testing for the Extended R&D Team

The Audio Precision APx516B is a two-channel audio analyzer with an optional module slot. It combines analog and digital audio testing at a price point previously unavailable in the market. Using an Audio Precision analyzer ensures consistency across the entire product development process, especially for extended, distributed, and remote teams, eliminating the discrepancies often seen with makeshift or ad hoc approaches. Key features include:

  • 2 Analog Signal Generator Channels
  • 2 Analog Signal Analyzer Channels
  • Optional module slot for all current and future APx500 digital audio interface modules

Streamlined Production Testing and Automation

The Audio Precision APx516B streamlines production testing with an instrument that seamlessly integrates both digital and analog audio connectivity. Directly compare data between R&D and manufacturing, make all key audio measurements in less than three seconds, and automate testing with a well-documented Application Programming Interface (API). Key features include: • Automation support through .Net, Python, Labview, Matlab, and more

  • Robust hardware suitable for 24/7 operation on a manufacturing line
  • 3-year standard warranty, or 5-year extended warranty
  • Accredited, ISO 17025 calibration from the factory
  • World-wide, direct support


  • Residual THD+N (20 kHz BW)
  • -100 dB + 2.0 µV
  • Typical <-109 dB (1 kHz, 2.5V)
  • Sine Frequency Range: 2.0 Hz to 80.1 kHz
  • Frequency Accuracy: 3 ppm
  • IMD Test Signals: SMPTE, MOD, DFD
  • Maximum Amplitude (balanced):14.40 Vrms
  • Amplitude Accuracy: ±0.05 dB
  • Flatness (10 Hz – 20 kHz): ±0.008 dB
  • Analog Output Configurations: Unbalanced, balanced, common mode
  • Dolby / DTS Generator: Yes (encoded file)
  • Maximum Rated Input Voltage: 125 Vpk
  • Maximum Bandwidth: >90 kHz
  • IMD Measurement Capability: SMPTE, MOD, DFD
  • Amplitude Accuracy (1 kHz): ±0.05 dB
  • Amplitude Flatness (10 Hz – 20 kHz): ±0.010 dB
  • Residual Input Noise (20 kHz BW): 2.0 µVrms
  • DC Voltage Measurement: Yes


For more information: Audio Precision

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Audio Precision APx516B Audio Analyzer


Audio Precision APx516B Datasheet





Audio Precision APx516B Audio Analyzer


The Audio Precision APx516B is a two-channel audio analyzer built for versatility. It is compatible with any current or future APx500 digital audio interface module, including Bluetooth, PDM, Digital Serial, and HDMI.

Audio Precision APx516B


AP’s Bluetooth module, the APx Bluetooth Duo™, delivers a wider selection of A2DP codecs, faster pair and connection times, an increased feature set within APx500 measurement software, and improved RF shielding for use in production test environments. APx Duo supports Bluetooth core specification v4.2, HFP v1.7, HSP v1.2, AVRCP v1.4 and A2DP v1.3.

Audio Precision APx516BPDM 16

The B Series APx PDM 16 option provides 16 acquisition channels for audio devices that have a PDM output (such as MEMS microphones). All 16 channels can be measured simultaneously. Cables are available in 2, 5, and 10 meters.


Audio Precision APx516BPDM

The B Series APx PDM option provides direct I/O, modulation, and decimation for powerful test and analysis of PDM devices.



Audio Precision APx516B

Digital Serial

The Digital Serial I/O option adds a multichannel digital serial interface. This provides a direct connection to chip-level interfaces such as I2S and supports all popular serial interface formats including left justified, right justified, and DSP.


Audio Precision APx516BHDMI

The B Series APx HDMI option (HDMI2+eARC) allows measurment of HDMI audio quality and audio format compatibility on devices such as surround sound receivers, set-top boxes, HDTVs, smartphones and tablets, and DVD or Blu-ray Disc™ players.


Audio Precision APx516BAES/SPDIF

The B Series APx DIO option provides AES3, AES/EBU balanced digital I/O on XLR; unbalanced SPDIF digital I/O on BNC; and TOSLINK optical digital I/O.




Every new analyzer comes with a perpetual license for the current and next major software release, including a limited number of out-of-the-box measurements.

Measurements Included in APx516B Base Configuration: Level and Gain, THD+N, Stepped Frequency Sweep, Loudspeaker Production Test, Pass/Fail, Signal Acquisition

Subscribe to save and stay up to date: download any version of software and all software options, except PESQ and POLQA, with a software subscription.

Benefits of software subscriptions:

  • Access to latest software release
  • Includes all software measurement options (except PESQ and POLQA)
  • Available as 1-year, 3-year or 5-year subscription

Measurements Included in Subscription:

APX-FLEX-PACK-2 Crosstalk, Crosstalk Sweeps, DC Level, DC Level Sweep, DUT Delay, Frequency Response, Interchannel Phase, Level Ratio, Measurement Recorder, Noise, Noise Recorder, Q-Peak Noise, SNR, SINAD, Stepped Level Sweep.

APX-FLEX-PACK-3 Continuous Sweep, Digital Error Rate, Dynamic Range–AES17, IMD, IMD Frequency Sweep, IMD Level Sweep, Input Sample Rate, Maximum Output, Maximum Output (CEA–2006), Multitone Analyzer, Regulated Frequency Sweep, Signal Analyzer.

APX-FLEX-PACK-4 Acoustic Response, Bandpass Frequency Sweep, Bandpass Level, Bandpass Level Sweep, Cumulative Spectral Decay, Impedance/Thiele-Small, Modulated Noise, Polar Plots, Transfer Function.





Additional information


Audio Precision


Audio Analyzers

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