Audio Precision APX555B
| Attribute | Value |
|---|---|
| Frequency Range | 10 Hz to 1 MHz |
| Dynamic Range | 140 dB (typical), analyzer noise floor below -180 dBFS |
| THD+N | -120 dB (0.0001%) typical at 1 kHz, 1 Vrms output |
| Output Voltage Range | 1 µV to 26 Vrms (balanced), up to 52 Vrms unbalanced |
| Input Voltage Range | 100 µV to 150 Vrms (balanced and unbalanced) |
| Residual Noise (Analyzer) | -107 dBu (unweighted, 20 kHz bandwidth) |
| Sample Rate | Up to 1.152 MHz (digital audio interface support) |
| Digital Audio Interfaces | AES3, S/PDIF, TOSLINK, HDMI (ARC/eARC), Bluetooth (optional) |
| Generator Distortion | Less than -120 dB THD+N at 1 kHz |
| Dimensions & Weight | 2U rack-mount chassis; approximately 19" W x 3.5" H x 18" D; ~14 kg (31 lbs) |
Audio Precision APX555B Options:
- APX555B - ADC Test Mode Option - Provides adjustable common mode VBias DC offset voltage on balanced analog outputs with Pin Voltage Protection mode
- APX555B - Digital Serial I/O - I2S, TDM, multi-line support (including jitter)
- APX555B - Bluetooth - Supports A2DP, AVRCP, HFP and HSP profiles
- APX555B - HDMI+ARC - Source, sink & monitor (including metadata)
- APX555B - PDM - One-bit audio generation & analysis (including PSRR and jitter)
- APX555B - Advanced Digital - AES/SPDIF/Optical (including jitter)
| Model | APX555B |
|---|
AUDIO PRECISION APX555B Audio Analyzer
With a typical residual THD+N of -120 dB and over 1 MHz bandwidth, the Audio Precision APx555B surpasses the analog performance of all other audio analyzers, including a 5 dB improvement compared to our 2700 Series analyzer. Add to this FFTs of 1.2 million points and full 24-bit resolution, and you have performance unmatched by any other instrument. With the introduction of the B Series, the APx555 further lowers analog system residual distortion at sinewave frequencies above 50 kHz over the full 1 MHz bandwidth.
The APx500 measurement software allows the B Series APx555 to adapt to the needs and preferences of audio designers, engineers and technicians. Sequence Mode provides complete, code-free automation of pre-defined measurement sequences to enable fast and reliable results. Bench Mode provides a real-time interface, with waveforms, FFTs and meters for virtually any parameter enabling the identification of important device interactions. The ADC Test Mode option provides an adjustable common mode VBias DC offset voltage on the balanced analog outputs. A Pin Voltage Protection mode, when enabled, prevents overvoltage damage to your direct-coupled ADC device's input during performance tests.
Specifications for the AUDIO PRECISION APX555B Audio Analyzer Include:
- Industry-best analog performance
- Residual THD+N: -120 dB (typical)
- Over 1 MHz bandwidth @ 24 bits on two channels
- Signal generation up to 204 kHz and 26 Vrms
- 1.2 M point FFTs
- ADC Test Mode option
- Support for the complete range of APx digital I/O options, including 32-bit digital serial I/O at up to 432 kHz sample rate
- Transfer Function Measurement
- Open-Loop Chirp Measurement
- Support for jitter capable digital interface options
- Advanced Master Clock for Reference, Sync and Trigger
- Independent output channel configuration
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