Audio Precision APX515 Sound Analyzer

The Audio Precision APX515 is a two-channel audio analyzer optimized for production testing and research applications. The device provides high accuracy, fast performance, and automation, completing a full set of audio measurements in just a few seconds.

Technical Specifications

• Number of Channels: 2 inputs / 2 outputs (balanced and unbalanced)
• Frequency Range: 2 Hz – 80.1 kHz
• Sampling Rate: up to 192 kHz
• Maximum Output Voltage: up to 16 V RMS
• THD+N: ~ -106 dB (1 kHz, 2 V RMS)
• Input Voltage: up to 125 V_peak (≈88 V RMS)
• Analyzer Bandwidth: up to 90 kHz
• Digital Interfaces: AES3 (XLR), S/PDIF (BNC, Toslink)
• Software: APx500 with API support for .NET, LabVIEW, MATLAB

Functions

• Fast measurement of all key audio parameters (~2-3 sec)
• Frequency response (FR), THD+N, SNR, intermodulation distortion
• Phase relationships, crosstalk, latency analysis
• Signal level and power measurements
• Automation via API and integration into production systems
• ISO/IEC 17025 certified calibration

Applications

• Production testing of audio devices
• Research and development laboratories
• Certification testing
• Service centers
• Educational and scientific institutions

Alternatives and Competitors

• Prism Sound dScope Series
• Keysight U8903A/B
• Rohde & Schwarz UPP/UPV
• NTi Audio FX100
• QuantAsylum QA403 (budget option)

The Audio Precision APX515 is a reliable and precise audio analyzer optimized for production testing and laboratory measurements. With high-speed performance, low distortion, and user-friendly software, this device is widely used in the audio industry.