1. XL2 Audio and Acoustic Analyzer Introducing the new flagship of the handheld EXEL line. V1.001, Sep. 09

2. XL2 Audio and Acoustic Analyzer Sound Level Meter Real Time Analyzer

3. XL2 Audio and Acoustic Analyzer Sound Level Meter Real Time Analyzer Acoustic Analyzer

4. XL2 Audio and Acoustic Analyzer Sound Level Meter Real Time Analyzer Acoustic Analyzer STI-PA Analyzer

5. XL2 Audio and Acoustic Analyzer Sound Level Meter Real Time Analyzer Acoustic Analyzer STI-PA Analyzer Audio Analyzer

6. XL2 Applications Live Sound Solutions Sound Installations and Recording Studios Broadcast Environmental Noise Measurements Service and Repair Centers

7. XL2 Configurations Set XL2 + M2210 XL2 with M2210 - Extended Performance - Measurement Microphone with class 1 frequency response Set XL2 + M4260 XL2 with M4260 Measurement Microphone, Class 2 + M2210 + M4260

8. XL2 Interfaces

9. Big LCD 160x160 with Backlight Function Buttons

10. Limit LED with red, yellow, green Indication Rotary Wheel

11. Shock Protection Jacket

12. Headphone Output

13. Wire Stand

14. Rear Speaker Battery Compartment with Li-Po Battery included

15. Tripod Mount Balanced & Unbalanced Input

16. Voice Note Microphone

17. Mains Power Adapter Input Digital I/O (prepared for later firmware extension) USB Interface

18. Mini-SD Card 2 GByte Removable

19. TOSLink Output (prepared for later firmware extension)

20. XL2 Key Features

21. XL2 Features Flexible User Interface Visual Limit LED of high sound levels Mini-SD Card, 2 GB removable Real Time Clock Built-in Speaker Rechargeable Li-Po Battery included Automated Sensor Detection reads electronic data sheet of M4260 and M2210 Wave File Recording* Voice Notes* *optional

22. XL2 Sound Level Meter / RTA Applications –Live Sound Events –Environmental Noise Monitoring

23. XL2 Sound Level Meter / RTA Measures actual level, L eq, L min, L max, L Cpeak, … Frequency weighting A, C, Z Time Weighting F, S, I* Linear operating range >100dB XL2 accuracy acc. IEC 61672, class 1 Logs automatically to Mini-SD card Real time clock *optional

24. XL2 Sound Level Meter / RTA Extended Acoustic Pack Percentiles %: 1, 5, 10, 50, 90, 95, 99% Time Weighting: Impulse Sound Pressure Level L Ieq Sound Exposure Level LAE TaktMax as specified in DIN 45645-1 WAV-file recording (ADPCM) Voice note recording High-resolution FFT up to 0.3Hz steps

25. XL2 Sound Level Meter / RTA All measurement results are simultaneously available. Select the available levels to be shown on the XL2 display

26. XL2 Sound Level Meter / RTA 3 or 5 levels may be displayed simultaneously in different selectable sizes

27. XL2 Sound Level Meter / RTA Displays two spectra simultaneously Resolution selectable Broadband values displayed in parallel Measurement range selectable Measurement time and control

28. XL2 Sound Level Meter / RTA Pre-defined limits for all levels Firmware V1.00 operates with fixed limits –Level ok Limit LED is GREEN –Level near limit LED is YELLOW –Limit exceeded LED is RED

29. XL2 Live Sound Challenges Sound pollution protection limits maximum level in audience area. Loudest audience position is commonly not accessible for measurements. XL2 offers a wizard to measure correction values k1 and k2 between loudest position and measurement point Public listening area Stage FOH Loudest accesible position Audience position Measurement Position k1 = Difference in L Aeq k2 = Difference in L CPeak

30. XL2 Correction Factor Wizard Run Pink Noise in the auditorium Measure level at the loudest position Measure level at the measurement point, e.g. at the mixing desk FOH XL2 stores results with time stamp and displays the calculated correction values k1 and k2

31. XL2 Audio Analyzer Balanced XLR, unbalanced RCA input -112 dBu to 30 dBu (1.4uV to 25V) Residual THD+N <-100dB (0.001%) Frequency range: 9 Hz to 20 kHz Frequency accuracy: 0.003% Loudspeaker and headset output for signal monitoring

32. XL2 FFT Analyzer Measures L ZF and L eq simultaneously Real time FFT in 3 ranges –10 Hz - 220 Hz with 1.5 Hz steps –20 Hz - 1.7 kHz with 15 Hz steps –200 Hz - 20 kHz with 150 Hz steps High-resolution FFT including zoom mode up to 0.3 Hz steps with Extended Acoustic Pack

33. XL2 RT60 Analyzer Measures 8 octave bands from 63 Hz – 8 kHz according to ISO3382 by Schroeder-method Auto triggering Auto averaging Measurement error indication Stimulus: –Gated pink noise –Impulse sound source

34. XL2 Polarity Testing Checks polarity of speaker cabinets, individual drivers and line signals Positive/Negative detection Using internal microphone or input signal of XLR/RCA connector

35. XL2 Polarity Testing In-depth verification of the polarity - frequency relation for speaker cabinets or other multi-way-systems Sample Screenshot left: The major part of the signal energy is measured in the mid-range frequency bands, thus the overall displayed polarity is NEGATIVE.

36. XL2 Propagation Delay For accurate setup of delay line arrangements Measures delay between electrical reference and acoustical signal Relative measurements supported Displays distance to speaker in meter or feet

37. XL2 STI-PA Analyzer Measures speech intelligibility of public announcement systems Complies with IEC 60268-16 (2003) and NFPA 72 Displays STI and CIS results Shows table of modulation indices and Leqs Supports ambient noise post processing *optional

38. XL2 Application Profiles XL2 supports application profiles Application profile may disable and hide any selections or measurement functions Allows fixed operator interfaces for basic users Firmware V1.0 offers a set of fixed application profiles

39. XL2 Store and Log Results Results stored as ASCII files Storing all or subsets of measurements results Adding a voice note to measurement* Records the ADPCM compressed audio signal in parallel* *optional

40. XL2 Automated Sensor Detection Automatically detects microphone type –Reads sensitivity –Reads product data –Shows last calibration ASD Cable Extension cable tandem up to 20 m supported

41. XL2 Powering Concept Rechargeable Li-Po battery –included –typical battery lifetime > 5 hours Dry cell batteries –type AA, 4 x 1.5 V –typical battery lifetime > 4 hours Mains power supply 9 VDC –charges Li-Po battery in operation

42. Measurement Microphones

43. XL2 Measurement Microphones Omni-directional, pre-polarized condenser, free-field microphone Build-in Pre-amplifier Electronic Data Sheet installed Phantom Power 48 VDC High dynamic range Wide frequency range Low residual noise M2210M4260

44. XL2 Comparison of Microphones M4260 M2210 – Extended Performance Capsule / Transducer 1/4 permanently installed capsule 1/2 detachable capsule with 60UNS2 thread Flatness Class 2 (IEC61672-1) < ±1 dB @ 100 Hz - 1250 Hz < ±3 dB @ 20 Hz - 20 kHz Class 1 (IEC61672-1) < ±1 dB @ 100 Hz - 4 kHz < ±2 dB @ 10 Hz - 20 kHz Frequency Range 20 Hz - 20 kHz1 Hz - 20 kHz Residual Noise Floor typical 24 dB(A)18 dB(A) Upper Limit of Dynamic Range typ. 136 dBSPL145 dBSPL Sensitivity typical -30 dBV/Pa ±4 dB (30 mV/Pa @ 1kHz) -34 dBV/Pa ±3 dB (20 mV/Pa @ 1kHz)

45. XL2 Accessories

46. XL2 Accessories Ever-Ready pouch –Detachable front flap –Connectors accessible –Zipper EXEL System Case –Compartments for XL2, MR-PRO, M4260 or M2210 –Accessories, battery and adapter

47. XL2 Accessories Battery Charger –Includes spare battery –Connects to 100-230V AC –Intelligent charger controller Spare Battery –rechargeable spare battery –Li-Po battery

48. XL2 Accessories ASD Cable –For extended connections of the measurement microphones M4260 or M2210 –Maintaining the automated sensor detection –Length = 5 meter (16 feet) External AC power supply –Suitable also for use with MR-PRO –Operates XL2 and chargers Li-Po battery in parallel

49. XL2 Firmware Options Extended Acoustic Pack –Percentiles: 1%, 5%, 10%, 50%, 90%, 95%, 99% –Time Weighting: Impulse –Sound Pressure Level L Ieq, Sound Exposure Level L AE –TaktMax and values as specified in DIN 45645-1 –WAV-file recording (ADPCM) –Voice note recording for individual measurements –High-resolution FFT including zoom mode up to 0.3 Hz steps at 10 Hz - 20 kHz

50. XL2 Firmware Options STI-PA Option –Measures speech intelligibility of public announcement systems –Complies with IEC 60268-16 (2003) and NFPA 72 –Displays STI and CIS results

51. New Technologies in Audio