The manual provides setup, operation, and testing procedures for the A2/A4 audio analyzer.
This document describes the A2/A4 audio analyzer, a multifunctional audio test instrument for production lines and R&D. It outlines hardware configuration, optional modules, and software features such as Bluetooth, Wi‑Fi, HDMI, and DSIO.
The guide covers step‑by‑step testing methods for level/gain, THD+N, frequency response, SNR, crosstalk, phase, and acoustic measurements, as well as detailed instructions for Bluetooth, Wi‑Fi, Type‑C, and microphone testing. This manual is written in Chinese.
| Maximum amplitude (balanced) | 16 Vrms |
|---|---|
| Amplitude accuracy | ±0.05 dB |
| Flatness (20 Hz‑20 kHz) | ±0.01 dB |
| Maximum input voltage | 230 Vpk |
| Bandwidth | >90 kHz |
| Dimensions (W×D×H) | 425 mm × 318 mm × 120 mm |
| Power supply | 100‑240 V, 90 W, 50‑60 Hz |
| Residual THD+N (20‑20 kHz BW) | -106 dB |
The analyzer can accept a maximum input voltage of 230 Vpk.
The unit measures 425 mm × 318 mm × 120 mm (W × D × H).
The device provides up to 60 test functions, including oscilloscope, spectrum analysis, and continuous fast scan.
Yes, it includes Bluetooth audio testing features and related modules.