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JBL CINEMA TRAILER
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JBL PROFESSIONAL
CINEMA PRODUCTS
Cinema 3000 Series
Cinema 3000 Series
Narrow profile enclosures
Smaller rooms
Optimized SYSTEMS
3677 Screen Channel system
3678 Screen Channel system
3310 Surround
3635 Subwoofer
3677 Screen Channel
3677 Screen Channel System
POSITION:  All-in-one system for small budgets, small theaters
APPLICATION:  Screen channel in small size cinemas
KEY FEATURES:
Shallow profile
Built-in passive network with HF protection
3678 Screen Channel System
3678 Screen Channel System
POSITION:  THX system for small-medium rooms
APPLICATION:  Screen channel in small-medium size cinemas
KEY FEATURES:
Shallow profile
Single VGC 15”
Bi-Radial horn and medium format driver
Bi-amp AND Built-in passive network with HF protection
3310 Surround
3310 Surround
POSITION: Big performance, small cost
APPLICATION: Surround arrays in budget theaters
KEY FEATURES:
2-way passive
75 watts power handling
89 dB sensitivity
Built-in passive network with HF protection
3635 Subwoofer
3635 Subwoofer
POSITION: Low cost subwoofer
APPLICATION: For small cinemas
KEY FEATURES:
Single 300 watt 18” woofer
Shallow profile (15”)
Cinema 4000 Series
Cinema 4000 Series
4675-4(8)LF Screen Channel System
4675C Screen Channel System
4670D Screen Channel System
4641 Subwoofer
4642A Subwoofer
4645C Subwoofer
8330A Surround
8340A Surround
4675C-4(8)LF Screen Channel System
"POSITION:"
POSITION:  JBL’s finest two-way THX system
APPLICATION:  Screen channel in large size cinemas
KEY FEATURES:
Dual 600 watt VGC 15” woofers
Large format 2” compression driver
Large format Bi-Radial horn
Designed for biampification; available in 4 or 8 ohm low frequency impedance for required amplifier matching
4675C Screen Channel System
4675C Screen Channel System
POSITION:  Excellent pattern control in an economical passive system
APPLICATION:  Screen channel in medium-large size cinemas
KEY FEATURES:
Dual 300 watt 15” woofers
Large format 2” compression driver
Large format Bi-Radial horn
Built-in passive network
4670D Screen Channel System
4670D Screen Channel System
POSITION:   Economical dual woofer system
APPLICATION:  Screen channel in medium size cinemas
KEY FEATURES:
Dual 300 watt 15” woofers
Large format 100 mm (4 inch) diaphragm compression driver
Built-in passive network
4645C Subwoofer
4645C Subwoofer
POSITION:   JBL’s most powerful single driver subwoofer
APPLICATION:  For any extended bandwidth cinema subwoofer application
KEY FEATURES:
Single Super VGC 800 watt 18” woofer
Usable freq. response to 18 Hz
THX Approved
4641 Subwoofer
4641 Subwoofer
POSITION:   JBL’s lower powered single driver subwoofer
APPLICATION:  For any extended bandwidth cinema subwoofer application
KEY FEATURES:
Single VGC 600 watt 18” woofer
Usable freq. response to 25 Hz
THX Approved
4642A Subwoofer
4642A Subwoofer
POSITION: JBL’s dual 18” subwoofer capable of carrying 1200 watts continuous power
APPLICATION: For any cinema application where extended subwoofer bandwidth is desired in a dual enclosure
KEY FEATURES:
Dual VGC 600 watt 18” woofers
Usable freq. response to 22 Hz
THX Approved
8330A Surround System
8330A Surround
8340A Surround  System
8340A Surround
POSITION: True digital power handling capability
APPLICATION: Surround arrays in digital equipped cinemas
KEY FEATURES:
250 watts power handling
96 dB sensitivity
THX Approved
Features JBL Custom ScreenArray Systems
5000 Series Cinema Systems
5000 Series Cinema Systems
5000 Series
Screen Channel Systems
5671 for small rooms (up to 250 seats)
45,000 cu ft (1216 cu m)
5672 for medium rooms (up to 500 seats)
100,000 cu ft (2700 cu m)
5674 for large rooms (up to 1200 seats)
225,000 cu ft (6080 cu m)
High Power Surround (use 8340A)
Subwoofer (use 4645C)
5000 Series Technical Attributes
Optimized Aperture HF horn/driver design
8 - 10 dB lower 2nd harmonic distortion!
Mid-Range horn and driver
Pattern control
True mid-range compression driver, model 2490
VGC 15” LF transducers
Digital Signal Processing
DSC Family with factory pre-set tunings for 5000 Series
Radiation patterns matched at crossover
Smooth transitions in system power response
Uniform coverage in the cinema
DSC 260 Digital Controller
5674
5672
5671
Academy of Motion Picture Arts and Sciences
Features JBL Professional 5674 Systems
JBL ScreenArray® Three-Way
The JBL ScreenArray® three-way loudspeaker systems incorporate the latest advances in JBL’s research into:
  High performance transducers
  Multi-band Waveguides
  Crossover designs
ScreenArray
Advanced Design Features
6 Key Technological Advances:
1.  “Three-Way” Design
2.  “Tapered” Midrange Line Array
3.  Filtered Array Technology
4.  Waveguide loaded cone-type midrange transducers
5.  Screen Spreading Compensation
6.  Asymmetrical Midrange and High Frequency Waveguides
JBL ScreenArray®
JBL ScreenArray®
3632 ScreenArray® System
Designed for small to medium auditoriums
Bi-amp or Tri-amp versions available
3632-T (Tri-amp) is THX- Approved
30 Hz to 20 kHz frequency range
129 dB peak SPL
Multi-band Waveguide
4632 ScreenArray
TWO-WAY
ScreenArray® Systems
The new Two-Way ScreenArray® Systems provide smooth and accurate reproduction of cinema soundtracks in a compact
and VERY cost effective package
Two-Way ScreenArray®
Low cost cinema systems utilizing the most advanced technology in cinema today
The low distortion ScreenArray® horn combined with JBL low frequency technology provides clear, accurate reproduction of the mid/high frequency information
Provides all the benefits of extended high frequency response and controlled coverage at a Very Competitive  Price
3622N, 2-Way ScreenArray®
Features:
JBL 2374 ScreenArray® horn with Screen Spreading Compensation
JBL 2418H-1, High Frequency Compression Driver
NEW 3639 Dual 15” Low Frequency System
Fully Passive Operation utilizing a computer optimized crossover network
Pre-assembled Components to reduce field assembly time for lower installation cost
"Features:"
Features:
JBL 2384 ScreenArray® HF horn with Screen Spreading Compensation
JBL 2430H,  High Frequency Driver
JBL 4639 Dual 15” Low Frequency System
Bi-Amplified design
Pre-assembled Components to reduce field assembly time for lower installation cost
"Features:"
Features:
All of the features of the 4622 Two Way ScreenArray® System in a FULLY PASSIVE SYSTEM design
4622N utilizes a sophisticated crossover network, developed using computer optimization technology providing seamless transition. This results in excellent power response and controlled directivity
JBL ScreenArray® Cinema Systems

The most advanced, cost effective
Screen-channel systems in the world
4632-T 3-Way ScreenArray® Tri-amplified  (THX)
3632-T 3-Way ScreenArray® Tri-amplified (THX)
4632 3-Way ScreenArray® Bi-amplified
3632 3-Way ScreenArray® Bi-amplified
4622 2-Way ScreenArray® Bi-amplified
4622N 2-Way ScreenArray® Passive
3622N 2-Way ScreenArray® Passive
Television Academy
Leonard H. Goldenson Theatre
Theater Systems
 Selecting Screen Loudspeakers, Surround Loudspeakers and Subwoofers
Screen channel requirements
15” LF drivers in the 95 - 97 dB SPL sensitivity range (1 Watt at 1 meter)
LF power handling in the 300-watt range and…
HF systems with matching output capability
Low frequency driver count
 (per “screen” channel)
For houses with 150 seats or less, specify systems with one LF driver per channel
For houses with 150-to-500 seats, specify systems with two LF drivers per channel
For houses with more than 500 seats, specify systems with four LF drivers per channel
Low Frequency Applications
Placement of Screen Channels
Space horizontally to match the widest picture format
Elevate systems so that the  HF sections are up about 2/3 the screen height
Place the systems so that the HF elements are as close as possible to the screen
Paint matte black any reflecting surfaces
Elevated Speakers
“Toe-in” of screen loudspeakers
Regardless of whether the screen is curved or not, “toe” the outside loudspeakers inward so that their on-axis extensions intersect at a point 2/3 of the distance to the back wall
Horizontal “Spacing” of Screen Channel Systems
Downward tilt of HF elements
Tilt the HF elements downward so that they point at ear level at a distance 2/3 toward the back of the house
Surround channel requirements
Moderate power surrounds (dome tweeter):
Sensitivity: 91 dB SPL (1 W at 1 m)
Power Rating: 100 watts continuous
High power surrounds (compression driver):
Sensitivity: 96 dB SPL (1 W at 1 m)
Power Rating: 250 watts continuous
Maximum output difference: 9 dB
Which surround model to choose?
For houses with seating no greater than about 200 patrons, use either moderate or high power surrounds
How many surrounds?
In most houses the ideal number will be between 12 and 16
Normally, specify at least 4 surrounds on back wall
An exception here is in very small houses,     where there may be two on the back wall. In this case, a total of 8 surrounds may suffice (3 on each side; 2 at back)
How to position the surrounds
The front-most surrounds are normally 2/3 the distance from the back wall to the screen
The back-most side wall surrounds should be about 9 - 12 feet from the back wall
Surround height and aiming
Height should normally be 12 - 15 feet above the floor
The high frequency axis should be aimed at the    seats on the opposite wall
Be prepared for Surround EX
Ideally, the three surround channels should have the same output capacity, and this calls for an equal number of loudspeakers per channel
When possible, specify surrounds in a quantity divisible by 6 (12, 18 or 24) to ensure optimum paralleling
Selecting Surround Amplifiers
Choose stereo amplifiers with a generous 4-ohm power rating that equals twice the individual surround loudspeaker rating
For example, if using high-powered surrounds (250 watt @ 8 ohm), select a stereo amplifier that can deliver 500 watts per channel into 4-ohms
If you have followed these rules…
Surround coverage in the back 2/3 of the house will be uniform to ±2 dB
Fine tuning “drive” levels may further improve uniformity
In deep houses, be prepared to “zone” surrounds with delay to maintain proper front - back perspectives
Subwoofer channel requirements
Use 18-inch diameter drivers
Sensitivity: should be no less than about 97 dB,
(1 W, at 1 m)
Power ratings per driver should be no less than about 400 watts Continuous
How many subwoofer drivers
are needed?
A safe rule is to specify one sub driver for each 700 m3 of house volume
Always round up;  if your calculations then indicate 5 ˝ subs, use 6!
You can always specify more subs for greater impact
Subwoofer powering
We recommend driving each subwoofer transducer with its own amplifier channel
Choose amplifiers with an output rating commensurate with each transducer at its rated impedance
Subwoofer mounting
Mount the sub-woofers at the base of  the                   screen, as close as possible to the floor and wall intersection
Cluster the individual units together as                   tightly as possible in order to take maximum advantage of  their  “mutual coupling”
JBL PROFESSIONAL
CROWN INTERNATIONAL
CINEMA APPLICATIONS
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JBL CINEMA TRAILER