XL2 Audio and Acoustic Analyzer

XL2 Sound Level Meter

Switch on. Measure. Analyze.

  • Sound Level Meter
  • Spectrum Analyzer
  • STIPA Analyzer
  • Audio Analyzer
  • Vibration Meter

Functions Options Software Applications Accessories Specifications

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.

At a glance

  • Reliable measurement solution
  • Flexible user interface
  • Extensive range of measurement functions

The sound level meter for all applications

Focus on your core skills and let the XL2 provide you with the reliable measurement data. This instrument is the benchmark that allows you to be the professional that you are. The robust design and verifiable measurement methods pair to help you perform better. The XL2 is the reference instrument in audio and acoustic measurement.

Introducing XL2 Acoustic and Audio Analyzer

XL2 Performance & Functional Overview

Switch on - Good to go

Get the job done, on time! The instrument is ready to measure literally seconds after you press the power button. The intuitive navigation and flexible user interface assist in simplifying every task. The XL2 provides an extensive range of measurement functions.

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Ready for any Challenge

The XL2 is developed according to user needs, and provides reliable measurement solutions for sound system installations, noise control, architectural acoustics, evacuation systems, live events, quality inspection and occupational health and safety. Discover an instrument you can trust for specialist applications.

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Extend your XL2 with more features to meet your needs.

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A wide range of accessories is available tailored for your applications.

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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.

XL2 Acoustic Analyzer for Building Acoustics Measurements
XL2 Acoustic Analyzer for your Application

  • 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.

Incomparable Value

The XL2 Audio and Acoustic Analyzer provides top-class performance with excellent value for money. You will receive an instrument exactly tailored to your needs for less than you expect.

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

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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.

Data Explorer Sound Insulation Reporter Sound Power Reporter Room Acoustics Reporter


I Love It! The XL2 is currently the world’s most versatile hand-held acoustic and audio analyser. I can do so much with it, and just love it! And in many ways, the associated Data Explorer software is much more versatile and easier to use than other leading industry equivalents.

Glenn Leembruggen
Acoustic Directions, Australia

Very Simple to Use! I must say that the instrument and the software are brilliant, and very simple to use, even for an old fogey like me.

Owen Clingan
owen.clingan@btinternet.com, UK

Better price with more versatility! I am happy that you keep on developing new applications and uses for the XL2, it is quite a convenient and powerful tool. In my opinion it is a serious competition for the traditional sound level meters at a better price and with more versatility. The Type Approval is an important step forward in the acceptation of the system; even in situations where type approval is not really needed, it helps avoiding discussions on the validity of the measurements.

Ben Kok
www.benkok.com, Netherlands

XL2 Data Explorer Software! With regards to analyzing the recorded noise data: The idea of hovering over the marker text or locking the set of them is absolutely brilliant for assessing the tonality of a marked section. I could not have thought of a better system. And the percentile calculator letting you choose any marker, filter band or level parameter is just perfect.

Jason Dixon
www.instrulabs.com.au, Australia

Your Partner in Measurements

Take advantage of our global network of experts. Any questions? Enjoy all-round customer support and training. We gladly share our application know-how and provide you with the key to your success. Welcome to the NTi Audio family!


XL2 with M4260 Measurement Microphone

XL2 + M2230

XL2 Audio and Acoustic Analyzer
with M2230 Measurement Microphone (Class 1 certified).

XL2 + M2211

XL2 Audio and Acoustic Analyzer
with M2211 Measurement Microphone (Class 1 frequency response).

XL2 + M4261

XL2 Audio and Acoustic Analyzer
with M4261 Measurement Microphone, Class 2.

XL2 Audio and Acoustic Analyzer

XL2 without measurement microphone.

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