JBL CBT 70JE-1

Overview

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 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.

Key Features

Components: 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.
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)

Specifications

Drivers	Eight (8) 130 mm (5 in) LF drivers Sixteen (16) 25 mm (1 in) HF drivers
Frequency Response (-10dB)	45 Hz – 20 kHz
Coverage Angle	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	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 @ 2.0V (70 Hz – 18 kHz)
Impedance	4 ohms
Power Rating	1000 W (4000 W peak), 2 hrs 700 W (2800 W peak), 100 hrs
Maximum SPL (1m)	Narrow: (speech mode) 125 dB cont ave (131 peak) (music mode) 121 dB cont ave (127 peak) Broad: (speech mode) 124 dB cont ave (130 peak) (music mode) 120 dB cont ave (126 peak)
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.
Color	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	20.4 kg (45 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
Components - 70JE-1	Four (4) 130 mm (5 in) LF drivers
Frequency Range (-10 dB) - 70JE-1	45 Hz – 700 Hz
Sensitivity (2.83V @ 1m) - 70JE-1	90 dB full space, 96 dB half-space (65 Hz - 300 Hz)
Nominal Impedance - 70JE-1	8 ohms
Power Capacity - 70JE-1	500 W (2000 W peak), 2 hrs 350 W (1400 W peak), 100 hrs
Max SPL - 70JE-1	117 dB
Net Weight - 70JE-1	8.2 kg (18 lb)