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- System performance:
Residual THD+N (20kHz BW): -108dB
- Source indicators:
Sinusoidal signal frequency range: 0.1Hz to 80.1kHz
Frequency accuracy: 3ppm
Intermodulation Distortion (IMD) test signal types: SMPTE, MOD, DFD
Maximum output amplitude (balanced): 21.21 Vrms
Amplitude accuracy (1kHz): ±0.03dB
Flatness (20Hz–20kHz): ±0.008dB
Analog output configuration: Unbalanced & Balanced
Maximum digital output sampling rate: 216 kHz
Sampling accuracy: 3ppm
Number of digits: 8-24bit
Residual jitter: Electrical < 1.5ns fiber < 2.5ns
Dolby/dts Source: Yes (pre-encoded file)
- Analyzer indicators:
Maximum rated input voltage: 300Vrms
Maximum bandwidth: 90kHz
Intermodulation Distortion (IMD) test functions: SMPTE, MOD, DFD
Amplitude accuracy (1kHz): ±0.03dB
Amplitude flatness (20Hz–20kHz): ±0.008dB
Residual input noise (20kHz BW): 1.3uV
Independent harmonic analysis: d2–d10
Maximum FFT conversion length: 1.2M points
DC voltage test: Yes
- Common indicators:
Size (WxDxH): 480mm*522mm*153mm
Weight: 8.2kg±0.5kg
Working voltage (AC): 220V, 50Hz/100V-240V, 50Hz-60Hz
Specification
Options and upgrades
Input and output interface options:
1. A5-BT-DUO option
The Bluetooth Dual Antenna Module is a completely revised, upgraded Bluetooth hardware module with a dedicated source and receiver, a new Bluetooth chip and the latest firmware, higher RF power, and improved RF shielding. And it offers a range of new audio codecs, support for new operational features in profiles, and faster connection times.
2. A5-HDMI option
HDMI+ARC (Audio Return Channel) is a versatile audio monitoring and measurement option, it is powerful, easy to use, accurate measurement results, can be widely used in multimedia products audio quality testing, can provide all standard audio measurement items, including level, signal-to-noise ratio, distortion, phase, crosstalk, group delay, etc.
3. A5-DSIO option
The DSIO option adds a multi-channel digital serial interface to the audio analyzer, providing a direct connection to the chip-level interface, which plays a decisive role in the design and development of the board, and its simple use and accurate test results can be widely used in audio quality testing of various digital devices.
4. A5-PDM option
PDM (Pulse Density Modulation) is a 1-bit, high-clock frequency data stream used in MEMS (Microelectro-Mechanical Systems) digital microphones, widely used in the design of smartphones. Audio analyzers equipped with the A5-PDM module can be directly connected to any device with PDM inputs or outputs to enable comprehensive audio testing required in the highly mobile telecommunications industry.
Software Options:
1. AX-SPK-RD option
SPK-RD provides designers and developers of electroacoustic products with a comprehensive set of test functions and results, including some key acoustic test indicators, a comprehensive set of T/S parameters, time-window-controlled quasi-acoustic response testing of a non-acoustic environment, impedance analysis, and more, this option includes all test functions of the production line version.
2. AX-SPK-PT option
SPK-PT is used for rapid testing of electroacoustic product production lines, providing the main index parameter test of loudspeakers, and obtaining all test results in one scan. The results include Rub & Buzz, the necessary set of T/S parameters, impedance amplitude and phase, and a dedicated modulated noise test function to detect air leakage in the speaker.
3. AX-PESQ is based on ITU-T P.862 standard
Perceptual audio measurement is widely used in mobile phones, VoIP networks, and other device tests to measure how people perceive sound quality. Especially for devices with limited bandwidth or bit rate, parameters such as frequency response/distortion testing using standard sine waves do not effectively reflect device performance, and only a combination of perceptual and electrical audio tests can fully account for device performance. PESQ is a widely used perceptual audio measurement primarily for subjective evaluation of speech quality in low-bandwidth devices.
4. AX-POLQA2 is based on ITU-T P.863 standard
POLQA2 uses a new generation of POLQA algorithms for subjective assessment of speech quality in wideband voice devices or devices with acoustic coupling. (Inherits PESQ and supports HD voice, 3G, 4G/LTE and VoIP technologies)
5. AX-STIPA option
AX-STIPA is a plug-in that uses the STIPA method for Voice Delivery Index (STI) testing.
