0 items in your cart
This website uses cookies to help improve your online experience. If you continue without changing your cookie settings we'll assume that you are happy for this website to use cookies. Find out more about our cookies. Hide this message.

JBL CBT 70JE-1 Line Array Column Speaker

Purpose-Designed Extension for CBT 70J-1 Line Array Column Speaker.

Product Code JBCBT70JE-1
Manufacturer JBL

Request more information or contact us now for purchasing information.


CBT 70JE-1

The CBT 70JE-1 cabinet contains four low frequency drivers and a crossover network purposely designed for use in the CBT 70J-1 + 70JE-1 System, in a tough fiberglass-reinforced ABS enclosure. The 500W power handling and high sensitivity delivers powerful low frequency output.

The drivers have lightweight dual magnet neodymium motors with 38 mm (1.5 in) diameter voice coils. The dual-magnet system provides maximum flux in a compact package. The magnet structure is magnetically shielded and the pole tips are magnetically saturated for lower flux modulation and minimum distortion. The 16 mm (0.63 in) long coils provides high linear drive and high power handling in a compact driver. The drivers feature damped blended surrounds and coated sealed paper cones found in high performance large format drivers. Drivers feature coated diaphragm materials to provide moisture, UV and salt resistance for outdoor capability. The thick, heavy-duty aluminum grille stands up to portable/event applications while allowing for rust-free installation outdoors.


When connected to a CBT 70J-1 line array column speaker, the CBT 70JE-1 Extension provides extended bass response, extended pattern control, and increased sound output levels. The combined array system provides Constant Beamwidth Technology™, which represents a breakthrough in pattern control consistency, utilizing complex analog beamforming and amplitude tapering to accomplish superior, consistent vertical coverage without the narrow vertical beaming and out-of-coverage lobing that are typical of passive column speakers.

The CBT 70JE-1 attaches to the top of the CBT 70J-1, utilizing the included coupler plate, resulting in a very well controlled progressive line array with asymmetrical vertical coverage. This coverage produces a higher concentration of sound with a tighter pattern projecting to the far areas of the listening space, and a lower concentration with a broader vertical pattern projecting toward the near area of the space. This results in more even front-to-back SPL levels than would be the case from a traditional speaker or column that projects symmetrically.

The CBT 70J-1 + 70JE-1 System provides a wide 45 Hz - 20 kHz bandwidth, and the slim footprint fits well into virtually any architectural décor. The 140 cm (55.2 in) tall line array height provides consistent pattern control throughout the intelligibility band, making the System work well in difficult acoustic environments.


The superior sound quality, excellent pattern control, asymmetrical vertical coverage and compact design makes the CBT 70J-1 + 70JE-1 System ideal for applications such as performance spaces, lecture halls, classrooms, A/V, transit centers, school stadiums, multipurpose spaces, racetracks, theme parks, and fill applications, among many others.

Adjustable Coverage to Fit the Application

The innovative coverage adjustability of the CBT 70J-1 + 70JE-1 System allows switching between broad and narrow vertical coverage settings to allow matching the coverage and throw requirements of the application. Coverage can be easily switched in-venue with the speaker already installed. This innovation allows a single loudspeaker system to excel in a wide range of project types.

User Variable Voicing

The voicing of the CBT 70J-1 + 70JE-1 System can be set to match the application through a Music/Speech switch. The Music setting provides flat frequency response, while the Speech setting produces a mid-range presence boost to provide clear, intelligible speech, along with increased midrange sensitivity for higher midrange maximum output capability.


Dynamic SonicGuard protection of the CBT 70J-1 + 70JE-1 System (built into the CBT 70J-1) protects the high frequency section, minimizing distortion at high drive levels by limiting driver excursion dynamically. This maximizes music clarity and speech intelligibility at high drive levels while protecting the drivers from damage due to occasional overpowering.


A thick coupler plate for connecting the CBT 70J-1 + 70JE-1 end-to-end is included with the 70JE-1. The CBT 70J-1 + 70JE-1 System can utilize the swivel (pan) / tilt wall bracket that is included with the 70J-1, or can utilize industry-standard mounting points on the coupler plate (OmniMount&tade; 60.0 and 120.0 patterns) for attaching to a wall. Alternatively, the M6 inserts on the back panel can be utilized to suspend the speaker using forged shoulder steel eyebolts or swivel mounting rings, providing installation versatility.

The CBT 70J-1 + 70JE-1 System can be installed either indoors or outdoors. The drivers are weather-treated, the fiberglass reinforced ABS cabinet is excellent for outdoor applications, external screws are stainless steel, and the painted aluminum grille resists rusting.

Available in black or white (-WH)

Key Features

CBT 70JE-1:

  • Components: Four 125 mm (5 in) high-power LF drivers
  • 500 Watt power handling
  • Built-in purpose-designed crossover network, for combining with CBT 70J-1
  • Coupler plate included


  • Extended pattern control (to 400 Hz for ± 20° control, to 200 Hz for substantial off-axis cancellation)
  • Extended bass response to 45 Hz.
  • Components: Sixteen 25 mm (1 in) soft dome tweeters and eight 125 mm (5 in) high-power LF drivers.
  • Patent-pending Constant Beamwidth Technology™ provides constant directivity up to the highest frequencies and reduces out-of-coverage lobing.
  • Vertical pattern coverage switchable between 45° for medium-throw coverage and 25° for long-throw applications.
  • Switchable voicing provides flat response in music mode or mid-range presence peak in speech mode.
  • Coupler plate and wall swivel (pan)/tilt bracket included (rear insert-point pattern fits standard third-party brackets)

Equipment available to buy from this site is for professional use only. Please note in certain countries some products listed may not be available from A.C. Entertainment Technologies Ltd.

E&OE. Information is subject to change without notice. The rights and ownership of all trademarks are recognised.


No related products

No accessories

A.C. Audio Online Shop