Purpose-Designed Extension for CBT 70J-1 Line Array Column Speaker
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.
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
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™ 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.
Components: Four (4) 130 mm (5 in) LF drivers
Frequency Range (-10 dB): 45 Hz – 700 Hz
Sensitivity (2.83V @ 1m): 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
Net Weight: 8.2 kg (18 lb)
CBT 70J-1 + 70JE-1 SYSTEM (connected end-to-end, driven in parallel) Specifications:
Components: Eight (8) 130 mm (5 in) LF drivers
Sixteen (16) 25 mm (1 in) HF drivers
Frequency Range (-10 db): 45 Hz – 20 kHz
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 @ 2.0V (70 Hz – 18 kHz)
Nominal Impedance: 4 ohms
Power Capacity: 1000 W (4000 W peak), 2 hrs
700 W (2800 W peak), 100 hrs
Max SPL: 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.
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)