Presentation XLA 3200 Slide 1 Presentation XLA

Presentation XLA 3200 Slide 1

Presentation XLA 3200 Commercial presentation XLA 3200 è Introduction è Acoustics è XLA 3200 Characteristics A family of solutions è A revolutionary new Angle è Cost Saving Spiral è Applications Slide 2

Presentation XLA 3200 Introduction è For 25 years the Cardiod range has been very successful for Lo. B communication. è The next generation of ‘column’ loudspeakers The line array è Advanced acoustics for a larger listening area Slide 3

Presentation XLA 3200 Acoustics Acústica Acustica Acústicas Acoustique è Sound is a pressure wave travelling @ 1240 km/h (dry ambient air) To cross 22 meters takes 64 milliseconds è The loudness is expressed in Sound Pressure Level (SPL) Decibels (d. B’s) Differences from 3 d. B onwards are audible è Sound reflects off surfaces or is absorbed è All is frequency dependent ! Slide 4

Presentation XLA 3200 Basic Acoustic Requirements è Clarity of Speech and Music Intelligibility è Sound @ the same volume Uniform SPL throughout the listening area è Natural sound Constant Directivity è As Less sound as possible beyond the Listening Area Directivity è Listening Comfort Minimized Reverberation Slide 5

Presentation XLA 3200 Speech Intelligibility Inteligibilidade la Palabra Intellegibilità de Palavra Sprachverständlichkeit Inteligibilidaddel parlato Intelligibilité deda parole è Important Frequency Range 1500 – 4200 Hz è Expressed in STI, RASTI, Alcons è Direct Sound / Reverberant Ratio is Critical Slide 6

Presentation XLA 3200 Direct Sound / Reverberant Ratio è All Direct Sound and Early Reflections received within 50 ms increase Intelligibility (max 20 m path difference) è Late Reflections compromise Intelligibility è High Reverberant Sound Level compromises Intelligibility Impulse response of reverberant room Slide 7

Presentation XLA 3200 Reverberation Diffusschall Riverbero Reverberante Reverberancia Réverbération è Characteristic of Venues è Reverberation Time > 2 s Reverberant Room è Reflections è Background Noise è Multiple Sources Reverberant Sound Level Slide 8

Presentation XLA 3200 Line Array sequenza Diffusore Loudspeaker Coluna dea. Altifalantes Conjunto lineal de altavoces Colonne acoustique lineare è Beaming of sound to the listening area Less Reverberation è Longer throw Fewer speakers required But Difficult è To get the same sound pressure level in the listening area è To include all relevant freq’s Constant Directivity è To avoid unwanted Interference effects Slide 9

Presentation XLA 3200 Line Array Basics è Intersection of beam with the listening area è Same loudness in the whole area è Beam is different per frequency For all relevant frequencies Constant Directivity Lobe with softer sound but listener is closer Listening Area So less attenuation equal SPL reaches the ear Slide 10

Presentation XLA 3200 “Throw” Attraverso in prossimità Perto do Altifalante Bereich oroaltavoz Alcance del haut-parleur Portée d’un Reach è Thru interference of the individual sources a longer throw 3 d. B vs 6 d. B per doubling distance 80 m 40 m Point source in d. B SPL (A) 80 m 40 m Line array in d. B SPL (A) Slide 11

Presentation XLA 3200 Constant constante DirettivitàDirectivity Directividade Constante Frequenzunabhängig Directividad Constante Directivité costante / einheitlich è The longer the array, the more beaming Desirable for beaming of low frequencies High Frequency beam becomes too narrow è Observe the undesired interference side-effects Side & Grating lobes Cross-sections of a 1 m 20 line array of 8 sources, ie vertical opening angle 125 Hz 250 Hz 500 Hz 1000 Hz Cross-section of a 2 m 40 line array of 8 sources 250 Hz Slide 12

Presentation XLA 3200 e. Xtended Listening Area Slide 13

Presentation XLA 3200 Larger Área de Area Grande. Listening ascolto Più larga area importante Área d’écoute di. Audição Zone grande de escucha through advanced acoustics è Rethinking Line Array Technology * Each driver emits dedicated frequency range Advanced positioning for beaming of low frequencies è For Better Directivity è State-of-the-art drivers Powerful Reliable Natural Sound * Patent Pending Slide 14

Presentation XLA 3200 Advanced Filtering and Driver Spacing è The whole array for low frequencies Excellent beaming of sound è Middle drivers for high frequency Powerful yet wide opening angle è Asymmetrical Main Lobe Maximized Listening Area Less reflections off the ceiling è Minimized Side Lobes Slide 15

Presentation XLA 3200 Advanced Filtering and Driver Spacing è Low Frequencies è High Frequencies Acoustic Center 80 o, 250 Hz -6 d. B, 1 k. Hz 20 o, 4 k. Hz -6 d. B, 4 k. Hz 55 o, 1 k. Hz Values LBC 3201/00 Slide 16

Presentation XLA 3200 Advanced Filtering and Driver Spacing è Asymmetrical directivity è Side lobe suppression -6 d. B, 1 k. Hz -6 d. B, 4 k. Hz Values LBC 3201/00 Slide 17

Presentation XLA 3200 Acoustical Characteristics- Continued è Wide horizontal Opening angle o 140 @ 4 k. Hz (LBC 3201) è High Efficiency Up to 97 d. B SPL (@ 1 W, 1 m) (LBC 3210) Slide 18

Presentation XLA 3200 Conclusion - e. Xtended Listening Area è Remarkably clear, natural sound for better intelligibility of speech and music è Greater coverage - reaching more people with perceptual perfect sound è Uniform sound distribution throughout the listening area: not too loud at the front, not too quiet at the back, all relevant frequencies everywhere Slide 19

Presentation XLA 3200 Voice evacuation compliant as standard è Complies with IEC 60849 and BS 5839 part 8 è Ceramic terminal block, thermal fuse and heat-resistant, hightemperature wiring è In the event of a fire, damage to the loudspeaker does not result in failure of the 100 V circuit to which it is connected. Slide 20

Presentation XLA 3200 A family of solutions 3201 3210 è LBC 3210 90/60 W rated power Excellent directivity and high power output Indoor and outdoor è LBC 3201 90/60 W rated power Offers extremely accurate directivity and side lobe suppression è LBC 3200 45/30 W rated power Superb size/performance ratio 3200 60 cm 8 cm 16 cm 1. 20 m Bracket Included Slide 21

Presentation XLA 3200 Throw XLA 3200 0 m 3201 & 3210 outdoor 25 m Slide 22

Presentation XLA 3200 A touch of high technology elegance è Silver Grille è Extruded Aluminum housing è Ultra Slim Line Elegant Unobtrusive Slide 23

Presentation XLA 3200 Indoor and Outdoor From Canteens to Passenger Terminals Congress Centers Slide 24

Presentation XLA 3200 A revolutionary new angle è Simple 2 -step installation procedure A chart is supplied that shows the installation height for required listening area simply install at angle marked on bracket è 100 V loudspeaker line compatible è Smart bracket suited for M 10 floor stand without extra accessories è Ease support Mark Slide 25

Presentation XLA 3200 Cost saving spiral Larger area per Speaker Less battery Less amplifier power Less speakers save on equipment & Installation Slide 26

Presentation XLA 3200 Applications è Passenger Terminals è Places of Worship, Historic halls, … è Congress centers, Houses of Parliament è Auditoriums, Atriums, Acoustically difficult rooms è (Indoor) Sport Stadiums Any place with a need for superb sound, excellent speech Intelligibility and Voice Evacuation Compliant Slide 27

Presentation XLA 3200 Applications (1/2) è Places of Worship Mosques, Churches, Temples Excellent speech Intelligibility Music Clarity Acoustically challenging Great Listening Live Speech, High gain before feedback è Passenger Terminals Bus, Metro, Train, Airports Background Noise (noise sensing) Excellent Speech Intelligibility Large listening area Part of Voice Evacuation system Slide 28

Presentation XLA 3200 Applications (2/2) è Congress Centers Hotels, Conference centers, houses of parliament, universities Excellent speech Intelligibility Integration with conference system Live Speech, High gain before feedback Temporarily (SR) application Part of Voice Evacuation è (Outdoor) Recreational Areas Tennis courts, swimming pools Excellent Speech Intelligibility Power, Large listening area, outdoors Music Weather proof Slide 29

Presentation XLA 3200 Advanced Acoustics for a larger listening area è Remarkably clear, natural sound for better intelligibility of speech and music è Greater coverage - reaching more people with perceptual perfect sound è Uniform sound distribution throughout the listening area: not too loud at the front, not too quiet at the back, all relevant frequencies everywhere Slide 30

Presentation XLA 3200 Slide 31