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