XL 2 Audio and Acoustic Analyzer Introducing the

XL 2 Audio and Acoustic Analyzer Introducing the new flagship of the handheld EXEL line. 11, V 1. 0 Oct. 09

XL 2 Audio and Acoustic Analyzer • Sound Level Meter Real Time Analyzer

XL 2 Audio and Acoustic Analyzer • • Sound Level Meter Real Time Analyzer Acoustic Analyzer

XL 2 Audio and Acoustic Analyzer • • • Sound Level Meter Real Time Analyzer Acoustic Analyzer STI-PA Analyzer

XL 2 Audio and Acoustic Analyzer • • Sound Level Meter Real Time Analyzer Acoustic Analyzer STI-PA Analyzer Audio Analyzer

XL 2 Applications • • • Live Sound Solutions Sound Installations and Recording Studios Broadcast Environmental Noise Measurements Service and Repair Centers

XL 2 Configurations • + Set XL 2 + M 2210 XL 2 with M 2210 - Extended Performance Measurement Microphone with class 1 frequency response M 2210 • Set XL 2 + M 4260 XL 2 with M 4260 Measurement Microphone, Class 2 + M 4260

XL 2 Interfaces

Big LCD 160 x 160 with Backlight Function Buttons

Rotary Wheel Limit LED with red, yellow, green Indication

Shock Protection Jacket

Headphone Output

Wire Stand

Battery Compartment with Li-Po Battery included Rear Speaker

Balanced & Unbalanced Input Tripod Mount

Voice Note Microphone

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

Mini-SD Card 2 GByte Removable

TOSLink Output (prepared for later firmware extension)

XL 2 Key Features

XL 2 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 M 4260 and M 2210 Wave File Recording Voice Notes

XL 2 Sound Level Meter / RTA • Applications – Live Sound Events – Environmental Noise Monitoring

XL 2 Sound Level Meter / RTA • • Measures actual level, Leq, Lmin, Lmax, LCpeak, … Frequency weighting A, C, Z Time Weighting F, S, Peak, I* Linear operating range > 100 d. B XL 2 accuracy acc. IEC 61672, class 1 Logs automatically to Mini-SD card Real time clock *optional

XL 2 Sound Level Meter / RTA Extended Acoustic Pack • Percentiles %: 1, 5, 10, 50, 95, 99% • Time Weighting: Impulse • Sound Pressure Level LIeq • Sound Exposure Level LAE • Takt. Max as specified in DIN 45645 -1 • High-resolution FFT with 0. 4 Hz steps

XL 2 Sound Level Meter / RTA • All measurement results are simultaneously available. • Select the available levels to be shown on the XL 2 display

XL 2 Sound Level Meter / RTA • 3 or 5 levels may be displayed simultaneously in different selectable sizes

XL 2 Sound Level Meter / RTA • • • Displays two spectra simultaneously Resolution selectable Broadband values displayed in parallel Measurement range selectable Measurement time and control

XL 2 Sound Level Meter / RTA • • Pre-defined limits for all levels Firmware V 1. 00 operates with fixed limits – Level ok Limit LED is GREEN – Level near limit LED is YELLOW – Limit exceeded LED is RED

XL 2 Live Sound Challenges Stage • Sound pollution protection limits maximum level in audience area. • Loudest audience position is commonly not accessible for measurements. • XL 2 offers a wizard to measure correction values k 1 and k 2 between loudest position and measurement point Loudest accesible position Audience position k 1 = Difference in LAeq k 2 = Difference in LCPeak Measurement Position FOH Public listening area

XL 2 Correction Value 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 XL 2 stores results with time stamp and displays the calculated correction values k 1 and k 2

XL 2 Audio Analyzer • • • Balanced XLR, unbalanced RCA input -112 d. Bu to 30 d. Bu (2. 0 u. V to 25 V) Residual THD+N <-100 d. B (0. 001%) Frequency range: 9 Hz to 20 k. Hz Frequency accuracy: 0. 003% Loudspeaker and headset output for signal monitoring

XL 2 FFT Analyzer • • Measures LZF and Leq simultaneously Real time FFT in 3 linear ranges displayed by 142 frequencies – 7 Hz - 215 Hz – 58 Hz - 1. 72 k. Hz – 484 Hz - 20. 5 k. Hz • High-resolution FFT including zoom mode up to 0. 4 Hz steps with Extended Acoustic Pack in the range from 5 Hz – 20 k. Hz

XL 2 RT 60 Analyzer • • • Measures 8 octave bands from 63 Hz – 8 k. Hz according to ISO 3382 by Schroeder-method Auto triggering Auto averaging Measurement error indication Stimulus: – Gated pink noise – Impulse sound source

XL 2 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

XL 2 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.

XL 2 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

XL 2 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 Leq’s Supports ambient noise post processing *optional

XL 2 Application Profiles • • XL 2 supports application profiles Application profile may disable and hide any selections or measurement functions Allows fixed operator interfaces for basic users Firmware V 1. 0 offers a set of fixed application profiles

XL 2 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

XL 2 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

XL 2 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

Measurement Microphones

XL 2 Measurement Microphones • • M 2210 M 4260 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

XL 2 Comparison of Microphones M 4260 M 2210 – Extended Performance 1/4” permanently installed capsule 1/2” detachable capsule with 60 UNS 2 thread Capsule / Transducer Flatness Class 2 (IEC 61672 -1) < ± 1. 4 d. B @ 100 Hz - 1250 Hz < ± 3. 5 d. B @ 20 Hz - 20 k. Hz Frequency Range 20 Hz - 20 k. Hz 1 Hz - 20 k. Hz Residual Noise Floor typical 24 d. B(A) 18 d. B(A) Upper Limit of Dynamic Range typ. 136 d. BSPL 145 d. BSPL Sensitivity typical -30 d. BV/Pa ± 4 d. B (30 m. V/Pa @ 1 k. Hz) -34 d. BV/Pa ± 3 d. B (20 m. V/Pa @ 1 k. Hz) Class 1 (IEC 61672 -1) < ± 1. 1 d. B @ 100 Hz - 4 k. Hz < ± 2. 5 d. B @ 10 Hz - 20 k. Hz

XL 2 Accessories

XL 2 Accessories • Ever-Ready pouch – Detachable front flap – Connectors accessible – Zipper • EXEL System Case – Compartments for XL 2, MR-PRO, M 4260 or M 2210 – Accessories, battery and adapter

XL 2 Accessories • Battery Charger – Includes spare battery – Connects to 100 -230 V AC – Intelligent charger controller • Spare Battery – rechargeable spare battery – Li-Po battery

XL 2 Accessories • ASD Cable – For extended connections of the measurement microphones M 4260 or M 2210 – Maintaining the automated sensor detection – Length = 5 meter (16 feet) • External AC power supply – Suitable also for use with MR-PRO – Operates XL 2 and chargers Li-Po battery in parallel

XL 2 Firmware Options • Extended Acoustic Pack – Percentiles: 1%, 5%, 10%, 50%, 90%, 95%, 99% – Time Weighting: Impulse – Sound Pressure Level LIeq – Sound Exposure Level LAE – High-resolution FFT including zoom mode up to 0. 4 Hz steps in the range of 5 Hz - 20 k. Hz – Takt. Max and values as specified in DIN 45645 -1

XL 2 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

New Technologies in Audio