Acoustic and Audio Analyzer

The XL2 Analyzer forms the unique combination of a state-of-the-art Sound Level Meter, a comprehensive Acoustic Analyzer as well as a powerful Audio Analyzer. A range of measurement microphones with an electronic data sheet are available to suit your requirements.

Besides being an advanced, integrating Sound Level Meter, the XL2 measures RTA and FFT high-resolution spectra, RT60 Reverberation Time, Polarity, Delay and THD+N. Optional features are speech intelligibility STIPA, extended acoustics functions, cinema calibration, pass/fail analysis and remote measurement acquisition. The Type Approval Option upgrades the instrument to the XL2-TA, a type approved sound level meter.

Data and audio is logged onto the SD card for transfer to your PC. Free reporting tools are available for download. The wide range of functionalities is tailored for measurement tasks in:

• Installed Sound
• Life Safety Systems
• Noise Monitoring
• Live Sound
• Broadcast
• Building Acoustics
• Industrial and Aerospace
• PASS/FAIL Quality Control

Sound Level Meter

• Standards IEC 61672, IEC 60651, IEC 60804, ANSI S1.4, ANSI S1.43


• Sound levels
• SPL actual, Lmin, Lmax, Lpeak, Leq, gliding Leq
• Spectrum 1/3 octave, 1/1 octave
• Sound Exposure Level LAE (optional)
• Percentile statistics for wide band, 1/1 and 1/3 octave spectrum:
  1%, 5%, 10%, 50%, 90%, 95%, 99% (optional)
• Calculated levels (optional): LCeq - LAeq, LAIeq - LAeq, LAFT5eq -LAeq
• Clock-impulse maximum level "TaktMax" according DIN 45645-1 (optional)
• Logging to SD Card
• All levels
• Short-time levels including spectrum for 1 second or longer
• 100 ms intervals optional
• Wav-file (linear wav-files with 24 bit, 48 kHz optional)
• Frequency weighting: A, C, Z (=flat)
• Time weighting: Fast, slow and optional impulse
• Correction values k1, k2
• Limit monitoring showing exceeding sound levels
• Digital I/O interface for the control of external peripherals
• Remote measurement acquisition (optional)

Acoustic Analyzer

• FFT Analysis
• RT60 Reverberation Time
• Polarity
• Delay
• Pass/Fail Measurements (optional)

STIPA Analyzer (optional)

• Speech Intelligibility Measurement
  IEC60268-16 (edition 4.0, 3.0 and 2.0), ISO 7240-16, ISO 7240-19, DIN VDE 0828-1, DIN VDE 0833-4
• Ambient Noise Correction
• Automated Averaging
• Modulation Indices

Audio Analyzer

• Level RMS
• THD+N
• Frequency
• Scope

The flexible user interface may be configured for the demands of advanced and basic users. Advanced users may access all menus, settings and store their preferred measurement configurations. Basic users choose from a set of preconfigured profiles at the start up with fixed instrument settings according the application requirements. This ensures accurate measurements in any situation.