J. P. Leisure Ltd. Unit 1, Hillside Road, Hele, Ilfracombe, Devon, EX34 9QS, United Kingdom.

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

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

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

Price Each 652.61 Exc VAT or (783.13 Inc VAT at 20%)


Ref: JP3338

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

When connected to a CBT 70J-1 line array column speaker, the JBL 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


  • Four 125 mm (5 in) high-power LF drivers (70JE-1)
  • 500 Watt power handling (70JE-1)
  • Built-in purpose-designed crossover network, for combining with CBT 70J-1 (70JE-1)
  • Coupler plate included (70JE-1)
  • Extended pattern control (to 400 Hz for 20 control, to 200 Hz for substantial off-axis cancellation)
  • Extended bass response to 45 Hz
  • 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)


  • Components: 1 Four (4) 130 mm (5 in) LF drivers
  • Frequency Range: (-10 db)  45 Hz 700 Hz
  • Coverage: Vertical (selectable via switch) Narrow Mode: 25 (2 kHz 16 kHz) (10) Broad Mode: 45 (350 Hz 16 kHz) (10) Horizontal 150 (500 Hz 18 kHz, 20)
  • Sensitivity (@1m): Narrow: (speech mode) 98 dB @ 2.83V, 95 dB @ 2.0V (150 Hz 8 kHz) (music mode) 94 dB @ 2.83V, 91 dB @ 2.0V (80 Hz 18 kHz), Broad: (speech mode) 97 dB @ 2.83V, 94 dB @ 2.0V (100 8 kHz) (music mode) 93 dB @ 2.83V, 90 dB full space, 96 dB half-space (65 Hz - 300 Hz)
  • Nominal Impedance: 8 ohms
  • Power Capacity: 500 W (2000 W peak), 2 hrs 350 W (1400 W peak), 100 hrs
  • Max SPL: 117 dB
  • Low Frequency Drivers: 8 pcs, 130 mm (5 in) drivers, dual magnet neodymium, 38 mm (1.5 in) voice coil, damped blended textile surround, coated diaphragm for moisture, UV and salt resistance, shielded.
  • High Frequency Drivers: 16 pcs, 25 mm (1 in) drivers, dual magnet neodymium, encased magnet and coated diaphragm for moisture, UV and salt resistance, shielded
  • Enclosure: Fiberglass-reinforced ABS cabinet, painted aluminum grille
  • Outdoor Capability IP-55 rated, per IEC529, when installed with optional MTC-PC2 panel cover. UV, moisture and 200-hr ASTM G85 acid-air/salt-spray resistant
  • Colors Black or white (-WH)
  • Insert Points 20 insert points total, 8 utilized for coupler plate, M6 (16 mm deep) on back panel
  • Mounting Coupler plate joins the CBT70J-1 and 70JE-1 end-to-end. Threaded points on coupler plate accepts OmniMount 60.0 Series and 120.0 Series compatible wall-mount brackets, as well as points for the swivel (pan)/tilt wall bracket that is included with CBT 70J-1. Twelve (12) additional M6 mounting points accept forged shoulder steel eyebolts or swivel clips for suspension
  • Dimensions (H x W x D) 1388 x 170 x 237 mm (54.8 x 6.7 x 9.3 in)
  • Net Weight 8.2 kg (18 lb)
  • Included Accessories Coupler plate (included with 70JE-1) Swivel (pan) / tilt wall bracket (included with 70J-1)
  • Optional Accessories MTC-PC2 terminal panel cover MTC-CBT-SMB1 Stand-Mount Bracket for use with 35 mm heavy duty speaker stand (must be heavy-duty stand for stability with this array) MTC-CBT-FM2 flush-mount low-profile wall-mount bracket

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