Analog Audio Analyzer
Portable analyzer for noise, room, and building acoustics.
XL2 Audio & Acoustic Analyzer
The hand-held XL2 Analyzer is a powerful Sound Level Meter, a professional Acoustic Analyzer, a precision Audio Analyzer and a comprehensive Vibration Meter in one instrument. Easy operation and countless applications distinguish this quality Swiss product.
The XL2 Sound Level Meter is available in stock, allowing for expedited delivery.
- Sound Level Meter
- Spectrum Analyzer
- STIPA Analyzer
- Audio Analyzer
- Vibration Meter
- Reliable measurement solution
- Flexible user interface
- Extensive range of measurement functions
The XL2 as a Sound Level Meter
Built for collaboration
Numerous measurement variations are simultaneously available. Actual level (live), Lmin, Lmax, Leq and Lpeak may be measured in combination with frequency weighting A, C or Z and time weightings fast, slow and impulse. All results are simultaneously available and may be stored automatically for later documentation.
Customers may log all acquired level information onto a removable SD card. Additionally the XL2 offers wav-file recording for a complete documentation of the measured sound pressure levels. Voice notes may also be added to each measurement.
- IEC 61672, IEC 60651, IEC 60804, IEC 61260
- China: GB/T 3785:2010, GB/T 3241, GB 3096-2008, GB 50526, GB-T_4959-1995
- Germany: DIN 15905-5, DIN 45645-2, optional: DIN 45645-1
- Japan: JIS C1509-1:2005, JIS C 1513 class 1, JIS C 1514 class 0
- Switzerland: SLV
- UK: BS6698, BS5969
- US: ANSI S1.4:2014, ANSI S1.43, ANSI S1.11:2014
- SMPTE ST 202:2010, ISO 2969:2015
- SPL actual, Lmin, Lmax, Lpeak, Leq, gliding Leq
- Frequency weighting: A, C, Z (=flat) simultaneously
- Time weighting: Fast, slow and optional impulse simultaneously
- Correction values k1, k2
- Indicators show when sound level limits are exceeded
- Digital I/O interface for the control of external peripherals
- Sound Exposure Level LAE (optional)
- Percentile statistics for Lxy (x= A, C or Z, y= F, S or EQ1″): 1 – 99% (optional)
- Calculated levels: LCeq – LAeq, LAIeq – LAeq, LAFT5eq -LAeq (optional)
- Clock-impulse maximum level “TaktMax” in accordance with DIN 45645-1 (optional)
- All levels simultaneously
- Short-time levels including spectrum for 1 second or longer
- Wav-file for listening (compressed)
- Data logging in 100 ms intervals (optional)
- Linear wav-files with 24 bit, 48 kHz resolution (optional)
Remote measurement acquisition (optional)
The XL2 as a Real Time Analyzer RTA
The RTA perfectly suits tasks such as optimization of sound systems and rooms. The XL2 measures and logs wideband values and the real time spectrum in 1/1 or 1/3 octave-band resolution according to IEC 61260 class 0. The sound level meter results of the wideband and RTA spectrum are simultaneously available.
Real Time Analyzer Features
- 1/3 octave, 1/1 octave
- Frequency weighting: A, C, Z (=flat)
- Time weighting: Fast, slow and optional impulse
- Percentile statistics for Lxy (x= A, C or Z, y= F or S ): 1 – 99% (optional)
5 reasons why the XL2 is the right choice for you
The XL2 Acoustic Analyzer offers numerous measurement functions relevant to your application in one instrument. Thanks to the intuitive operation, you can quickly and easily switch between the different measuring functions.
- The intuitive user interface makes operation child’s play without having to study the user manual.
- Rugged and ready for tough environments.
- All measurement results are stored on a removable SD card as TXT files, which can be further processed externally with a PC or MAC.
- The XL2 has many expandable measurement functions. So, if you have other acoustic or audio measurement tasks, it’s likely that the XL2 can help you.
- Together with the Type Approval Option, the XL2 is an approved Sound Level Meter.
Data Analysis and Reporting
The XL2 stores all data onto the SD card for direct transfer to the computer. Data reports and log files are stored in plain text format, which can be opened with any text editor (Notepad, Wordpad, etc). The data is tab-delimited, so dropping the .txt file into a spreadsheet application will conveniently show the results in columns. The sound level meter may additionaly record the audio data as a WAV-file.
A series of free MS Excel application templates provide a convenient way to view the measurement results of specific tasks and create simple reports.
Free Reporting Tools:
- Basic Live Sound and Noise Monitoring Reporting
- Noise Exposure
- Speech Intelligibility Reporting
Professional Software Packages (optional):
- Data Explorer: Professional solution for a comprehensive analysis of logged noise monitoring data. The data import into the software is enabled by the Data Explorer Option or the annual subscription service Data Explorer 365.
- Sound Insulation Reporter: Provides standardized reports for Airborne, Impact and Facade sound insulation measurements. The data import into the software is enabled by the Sound Insulation Option or the annual subscription service Sound Insulation Reporter 365.
- Sound Power Reporter: Provides standardized reports for sound power measurements. The data import into the software is enabled by the Sound Power Option or the annual subscription service Sound Power Reporter 365.
- Room Acoustics Reporter: For automatically generating reverberation time measurement reports and analyzing the RTA frequency response spectrum. The data import into the software is enabled by the Room Acoustics Option or the annual subscription service Room Acoustics Reporter 365.
Configurations
Sound Level Meter
The XL2 together with the M2230 Measurement Microphone and the Type Approval Option forms a certified class 1 sound level meter in accordance with the standards IEC 61672-1 and ANSI S1.4.
Measurement Kit
- XL2 Sound Level Meter
- Type Approval Option for XL2
- M2230 Measurement Microphone
- Manufacturer Calibration Certificate according to IEC 61672
- System Case
Optional
- Extended Acoustic Pack for XL2
- Data Explorer 365
- Remote Measurement Option for XL2
- Class 1 Sound Calibrator 94/114 dB
The XL2, together with the M2211 Measurement Microphone, forms a professional sound level meter with class 1 frequency response according to IEC 61672-1 and ANSI S1.4.
Measurement Kit
- XL2 Sound Level Meter
- M2211 Measurement Microphone
- Manufacturer Calibration Certificate according to IEC 61672
- System Case
Optional
- Extended Acoustic Pack for XL2
- Data Explorer 365
- Remote Measurement Option for XL2
- Class 1 Sound Calibrator 94/114 dB
The XL2, together with the M4261 Measurement Microphone, forms a professional sound level meter according to IEC 61672 and ANSI S1.4., class 2.
Measurement Kit
- XL2 Sound Level Meter
- M4261 Measurement Microphone
- Manufacturer Calibration Certificate according to IEC 61672
- System Case
Optional
- Extended Acoustic Pack for XL2
- Data Explorer 365
- Remote Measurement Option for XL2
- Class 2 Sound Calibrator
Applications
Applications
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Sound Level Monitoring
Monitor event SPL in real time to meet limits and protect hearing.
Learn more
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Environmental Monitoring
Long-term environmental noise monitoring for communities and sites.
Learn more
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Functions
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learn more
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Acoustic Analyzer
learn moreAdvanced acoustic measurements with fast analysis and clear reporting.
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Real Time Analyzer RTA
learn moreLive octave and third octave analysis for instant frequency insight.
- All Functions
Options
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Extended Acoustic Pack Option
learn moreExtra acoustic functions including live percentiles and advanced metrics.
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XL2 Projector PRO Option
learn moreProjector audio testing and documentation with dedicated XL2 tools.
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Type Approval Option
learn moreType approved configuration for regulated Class 1 measurements.
- All Options
Accessories
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Measurement Microphones
learn moreA range of measurement microphones are available to suit your requirements. The measurement microphones combine with the XL3 or XL2…
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ASD Cable
learn moreThe ASD Cable allows for extended connections of the NTi Audio measurement microphones. It supports the transfer of the electronic…
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System Case
learn moreCompact field case for instruments and accessories
- All Accessoires
Software
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MeasurEye
Cloud hub for real time monitoring of noise, reportings, vibration and alerts.Learn more
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Data Explorer
PC software for analysis, reporting and rating level calculations.Learn more
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Sound Insulation Reporter
PC software for sound insulation measurements, analysis, and standardized reporting.Learn more
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Room Acoustics Reporter
PC software for reverberation time reporting and frequency response analysis.Learn more
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Sound Power Reporter
PC software that turns sound power measurements into fast, graphical reports from all positions.Learn more
FAQs
Use the XL3 or XL2 with a suitable measurement microphone and perform a quick acoustic calibration with a sound calibrator (typically 94 dB at 1 kHz) before and after the measurement session. This creates traceable results and helps catch setup or microphone issues early.
Yes. With the STIPA Option installed, the XL3 or XL2 measure speech intelligibility according to IEC 60268-16:2020 (and also support older editions), including features like ambient noise correction and automated averaging.
You can transfer XL2 measurement data to a PC and generate professional reports with NTi Data Explorer, which is designed for fast analysis of sound level data and quick creation of customized reports. It automatically includes relevant header information such as measurement date and calibration details for clean documentation.
For building acoustics workflows, you can also export and document key results for SIR (Sound Insulation Reporter) and RAR (Room Acoustics Reporter) applications – making it easy to turn XL2 measurements into standardized, client-ready deliverables.
Trusted by professionals worldwide.
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As a research laboratory invested in supporting communities through real time noise monitoring, I am very happy to exclusively use NTi instruments. Not only are the robust, easy to use, and provide high quality data, the customer service is outstanding and their team will work with you to find the most cost effective and appropriate solutions needed for problems ranging from easy to difficult.
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I’ve been using the XL2 for over 15 years for short-term and long-term measurements in all kinds of indoor and outdoor environments all across the country. The meter gets me what I want, when I need it. It’s not only the best value for acoustical measurements, it’s the best tool period. I bet my company and reputation on XL2 results and it has not let me down. You would be crazy not to consider adding NTi instruments to your toolkit.
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We at Constructure GmbH use two XL3 sound level meters for noise monitoring during demolition work. We are very satisfied with these highly user-friendly instruments, the online monitoring in the MeasurEye Cloud, the good advice and qualified support. Factory calibrations at NTi Audio are also handled very smoothly and without complications.
News about XL2 Audio & Acoustic Analyzer
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Introducing Smarter Sound Insulation Measurement with the New “Site View”
Read more
Downloads
- Application Notes
- Product Information
- Quick Guide
- Test Reports
- Type Approvals
- Software
