JBL CINEMA SOUND SYSTEM MANUAL
Table of Contents
I. INTRODUCTION.. ..................................................................................................
II. BASIC SYSTEM CONCEPTS.. ..............................................................................
A. Analog Film Formats.. ................................................................................
B. Digital Film Formats ...................................................................................
C. A- and B-chains .........................................................................................
D. Evolving Dynamic Range Requirements in the Cinema.. ...........................
E. Integration of Loudspeakers into the Acoustical Environment..................... 7
F. Power Response and Power-Flat Systems ................................................
G. Coverage Requirements for Proper Stereo Reproduction
III. ACOUSTICAL CONSIDERATIONS ......................................................................
A. Noise Criterion (NC) Requirements.. ..........................................................
B. Control of Reverberation and Discrete Reflections ....................................
C. The Role of the Acoustical Consultant.. .....................................................
IV. SPECIFYING THE CORRECT LOUDSPEAKERS AND AMPLIFIERS.. ...............
A. Hardware Class vs. Room Size.. ................................................................
B. Advantages of Biamplification .....................................................................
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C. Cinema Playback Level Calibration.. ..........................................................
D. New JBL Driver Developments ..................................................................
E. Mechanical Details of JBL Screen Loudspeaker Systems .........................
F. Subwoofers ................................................................................................
G. Surround Requirements.. ...........................................................................
H. Screen Losses.. .........................................................................................
I. Use of Multiple High Frequency Elements.. .................................................
V. MOUNTING REQUIREMENTS.. ............................................................................
A. General Comments .....................................................................................
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B. Platform and Baffle Construction.. ..............................................................
C. Subwoofer Mounting.. ...............................................................................
D
Surround Mounting ...................................................................................
VI. ELECTRICAL INTERFACE ..................................................................................
A. Wiring for Non-biamplified Installations.. ...................................................
B. Wiring Diagram for a Biamplified Installation.. ............................................
C. Wiring for Surround Channels.. ..................................................................
D. Wire Gauges and Line Loss Calculations ..................................................
E. Dividing Network Characteristics.. ..............................................................
F. System Setup and Checkout.. ....................................................................
References.. ...............................................................................................................