JBL 660GTI - Manuals - manualsarea.com

Page 3 - TABLE OF CONTENTS; ENGLISH

TABLE OF CONTENTS INTRODUCTION ................................................2 SCIENCE OF JBL SPEAKER DESIGN ................4 PRODUCT FEATURES ........................................6 SYSTEM DESIGN ............................................10 SPECIFICATIONS .......................................

Page 4 - AT JBL, SPEAKER DESIGN IS; This breakthrough technology uses

THERE ARE THREE STAGES IN ENGINEERING LOUDSPEAKERS AT JBL: Computer-aided design and modeling, prototyping and testing. JBL speakers are thoroughly tested and qualified at each stage to ensure that the finished product performs flawlessly. Every speaker design starts with physical dimensions that fa...

Page 5 - Environmental Test Lab:; TESTING

Anechoic Chambers: JBL’s anechoic chambers are expensive … but worth the investment. The baffles on the walls of the chamber absorb sound at all audible frequencies. In this setting, JBL engineers can assess critical details of the speaker’s performance without the effects of extraneous noise or ref...

Page 6 - GTi COMPETITION SPEAKER; Vented Gap Cooling; LOW-DISTORTION WOOFER; Figure 1

GTi COMPETITION SPEAKER SYSTEM TECHNOLOGY: 1. Spider-Landing Vents: Minimize distortion from mechanical noise. 2. Nomex ® Spider: Provides linear force in both movement directions. 3. Nitrile-Butylene Surround: Ensures superior longevity. 4. Copper Polepiece Cap: Provides linear inductance over the ...

Page 8 - Measurements are made at 10° intervals along the horizontal; Directivity Index

THE DIRECTIVITY INDEX (DI): HOW WE MEASURETHE RELATIONSHIP BETWEEN ON-AXIS RESPONSEAND OFF-AXIS RESPONSE The Directivity Index (DI) is the ratio of the intensity of the sound in the listeningwindow to the average of the intensity of the sound radiated at all angles (soundpower). We make measurements...

Page 9 - THE CROSSOVER: MORE THAN A DIVIDING NETWORK

9 Figure 10. Figure 12. 1K 2K 5K 10K 20K the tweeter’s output at low frequencies in the listening window and decreases its out-put in the off-axis response. That’s a much closer match to the directivity of the woofer,which is focused into the listening window in the crossover region. The crossover r...

Page 10 - SYSTEM DESIGN USING THE

Many speaker systems are designed for on-axis listening and often include a listening window that’s ±30° from the speaker’s 0° axis. That’s great for homeaudio or other applications where speakers can be easily pointed at a single listener. In a car, however, the possible speaker mounting locations ...

Page 11 - IS; SPECIFICATIONS; Remove

11 Figure 20. Figure 19. WOOFER MOUNTING CONSIDERATIONS • All woofers require a rigid baffle and isolation between the front and back of the speaker for best low-frequency extension. • The 660GTi woofer may be used in an infinite baffle or in a small sealed enclosure with a volume equal to or larger...

Harman Consumer Group, Inc. 250 Crossways Park Drive, Woodbury, NY 11797 USA 2, route de Tours, 72500, Château du Loir, France 516.496.3400 (USA only) www.jbl.com THE OFFICIAL BRAND OF LIVE MUSIC. ©2007 Harman International Industries, Incorporated. All rights reserved. Part No. 560/660GTiOM Printed...