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APx516B Audio Analyzer
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APx516B Audio Analyzer
The Audio Precision APx516B Series Audio Analyzer offers a cost-effective modular solution for analog and digital audio testing, upholding the Audio Precision standard of performance and service. Designed for extended R&D teams and production test applications, it delivers comprehensive testing in a versatile, affordable package.
The APx516B is a two-channel audio analyzer with an optional module slot that is compatible with current and future APx500 digital audio interface modules: Bluetooth, PDM 16, PDM, Programmable Serial I/O, HDMI and AES/S/PDIF.
Key Features
- 2 analog signal generator channels and 2 analog signal analyzer channels
- Residual THD+N typically < −109 dB (1 kHz, 2.5 V)
- Optional module slot: Bluetooth, PDM 16, PDM, Programmable Serial I/O, HDMI2 + eARC, AES/S/PDIF
- Base measurements: Level and Gain, THD+N, Stepped Frequency Sweep, Loudspeaker Production Test, Pass/Fail, Signal Acquisition
- Expandable with APx500 Flex Packs 2/3/4 or software subscription
Key Specifications
| Analog channels | 2 generator, 2 analyzer |
| 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 |
| Generator flatness (10 Hz–20 kHz) | ±0.008 dB |
| Analog output configurations | Unbalanced, balanced, common mode |
| Maximum rated input voltage | 125 Vpk |
| Maximum bandwidth | > 90 kHz |
| Analyzer flatness (10 Hz–20 kHz) | ±0.010 dB |
| Residual input noise (20 kHz BW) | 2.0 µVrms |
| Residual THD+N (20 kHz BW) | −100 dB + 2.0 µV; typically < −109 dB (1 kHz, 2.5 V) |
| DC voltage measurement | Yes |
Datasheet available on request.
