CBT 1000

2Way Line Array Column Loudspeaker

 Colors : Black (RAL9004) or White (-WH) (RAL9016)

Overview

The black CBT1000 Two-Way Line Array Column Loudspeaker from JBL combines Constant Beamwidth Technology with adjustable vertical coverage and a tapered horizontal waveguide to increase the versatility of aiming the coverage of the loudspeaker to more accurately map to the room geometry in a wide variety of listening spaces. Utilizing complex analog beam-forming, the speaker provides consistent vertical coverage without the narrow vertical beaming and out-of-coverage lobing. The low frequency drivers feature lightweight neodymium motors with 2" diameter voice coils. The structure is magnetically shielded and the drivers have a copper cap on the pole to minimize flux modulation and linearize inductance, resulting in lower distortion and improved frequency response. The 0.63" long coil provides high linear drive and high power handling in a compact driver. The LF drivers feature damped blended textile surrounds and coated sealed paper cones found in high performance large format drivers. The high frequency drivers include neodymium structure for maximum sensitivity, and feature high power handling, long excursion and large back enclosures for additional frequency range and output. The tweeter is encased for weather resistance. Both drivers feature coated diaphragm materials to provide moisture, UV, and salt resistance for outdoor capability. The asymmetrical coverage settings produce a higher concentration of sound with a tighter pattern from the upper half of the array, and a lower concentration of sound with a broader vertical pattern from the lower half of the array. This sends more sound toward the far area of the room than to the near area of the room, resulting in more even front-to-back SPL levels. Additionally, the vertical coverage pattern is individually installer adjustable though a range of four pattern-up coverage angles and four pattern-down coverage angles for a total of sixteen different coverage combinations, all without the use of any external DSP processing. The tapered horizontal waveguide design provides a continuously varying horizontal dispersion by providing a wide angle of dispersion for the short-throw distances and a narrower horizontal angle of dispersion for the long-throw distances, providing superior coverage in both the front and rear corners of a room. The consistent pattern control allows the CBT 1000 loudspeaker to work well in difficult acoustic environments. The two-way coaxial design provides a wide 45 Hz to 20 kHz bandwidth. The low-diffraction baffle eliminates frequency response irregularities that could otherwise occur due to baffle discontinuities. The thick, heavy-duty aluminum grille allows for rust-free installation outdoors.

Features

• Equipped with twenty-four 1" high power soft dome tweeters and six coaxially arranged 6.5" high-excursion LF drivers

• Constant Beamwidth Technology provides constant directivity coverage and reduces out of coverage lobing

• Vertical pattern coverage individually adjustable with four pattern-up coverage angles and four pattern-down coverage angles for a total of sixteen different coverage combinations, all without the use of external DSP processing

• Vertical pattern coverage settings are set via easy-to-configure headers located in a covered compartment on the side of the speaker

• Asymmetrical vertical settings send more sound toward far area of room to make front-to-back sound levels more consistent

• Tapered horizontal waveguide provides a continuously varying horizontal dispersion (very wide for short-throw, narrower for long-throw) delivering superior coverage in both the front and rear corners of a room and reducing over-splash

• Dynamic Sonic Guard protection on the high frequency section minimizes distortion at high drive levels and maximizes sound clarity, while protecting the drivers from damage due to occasional overpowering

• Sound levels up to 131 dB (137 dB peaks), depending on the settings

• Wide 45 Hz to 20 kHz frequency response

• Switchable voicing provides flat response in music mode or mid-range presence peak in speech mode

• Two-part swivel (pan)/tilt wall-mount bracket is included

• Fourteen M8 brass inserts are located on the back panel in a spacing pattern that fits common third-party mounting brackets

• Four insert points (located on the top and bottom end-caps) can be utilized to suspend the speaker using forged shoulder steel eyebolts or swivel mounting rings, providing installation versatility

• Fiberglass reinforced ABS cabinet with UV-resistant paint and powder-coated 1050 aluminum grille

• Suitable for applications such as performance auditoriums, houses of worship, lecture halls, classrooms, cinema main speakers or very high-output surrounds, multi-purpose spaces, A/V, transit centers, sports facilities, racetracks, theme parks, outdoor locations, and more

Specifications

Active or PassivePassive

Frequency Response45 Hz to 20 kHz, -10 dB

Power Capacity1500 W (6000 W peak), 2 hours

1000 W (4000 W peak), 100 hours

Maximum Sound Pressure Level (SPL)Highest Directivity Setting:

Point pattern up,

Point pattern down with Speech Voicing:

131 dB continuous average pink noise

134 dB continuous program

137 dB peak

Point pattern up,

Point pattern down with Music Voicing:

127 dB continuous average pink noise

130 dB continuous program

133 dB peak

 Lowest Directivity Setting:

Medium pattern up,

Downfill pattern down with Speech Voicing:

128 dB continuous average pink noise

131 dB continuous program

134 dB peak

Medium pattern up,

Downfill pattern down with Music Voicing:

124 dB continuous average pink noise

127 dB continuous program

130 dB peak

SensitivityMeasured at 2.83 V @ 3.3' (1 m):

102 dB at highest sensitivity setting

(Point pattern up, Point pattern down)

(Speech voicing, in free space)

95 dB at lowest sensitivity setting

(Medium pattern up)

(Downfill pattern down, Music voicing in free space)

Nominal Impedance4 Ohms (4 Ohms above 1 kHz; 8 Ohms below 800 Hz)

CrossoverNot Specified by the Manufacturer

Low Frequency Driver6 x 6.5" (165 mm) driver, lightweight neodymium motors

2" (50 mm) diameter voice coils

Copper-capped pole tips to minimize flux

modulation and linearize inductance

0.63" (16 mm)

long coil for high linear drive and high power handling

Damped, blended textile surround

Coated cones for moisture,

UV and salt resistance

Magnetically shielded

High Frequency Driver24 x 1" (25 mm)

Neodymium, encased magnet,

and coated diaphragm for moisture,

UV, and salt resistance

Vertical Coverage AngleEffective beyond -6 dB coverage angles

(angles are in reference to cabinet aiming axis)

Pattern Up Settings:

Point: -6 dB @ +7°, -12 dB @ +12°

Tight: -6 dB @ +9°, -12 dB @ +15°

Narrow: -6 dB @ +10°, -12 dB @ +20°

Medium: -6 dB @ +13°, -12 dB @ +24°

 Pattern Down Settings:

Point: -6 dB @ -7°, -12 dB @ -12°

Narrow: -6 dB @ -10°, -12 dB @ -20°

Broad: -6 dB @ -17°, -12 dB @ -28°

Downfill: -6 dB @ -20°, -12 dB @ -35°

Horizontal Coverage AngleTapered Horizontal Wave guide continuously variable:

Long-Throw (Top) Section: 100°

Middle Section: 130°

Short-Throw (Bottom) Section: 160°

Recommended Protective High-Pass35 Hz, 24 dB/oct or greater

Enclosure MaterialFiberglass reinforced ABS cabinet,

powder coated 1050 aluminum grille

Outdoor UseIP-55 rated, per IEC529,

when installed with optional MTC-PC2 cover

Exceeds Mil Spec 810 for humidity, temperature and UV,

ASTM G85 for acid-air/salt-spray (200 hours)

Mounting14 x M8 inserts on back panel (20 mm deep)

for use with swivel (pan)/tilt bracket

Forged-shoulder steel eyebolts, swivel rings,

and after-market third-party brackets

4 x M8 inserts on top and 4 on bottom of cabinet end-caps

Wall Mount Bracket±45° left-right swivel aiming (at no up/down tilt)

±15° tilt in 1° fixed increment points

Input ConnectionsNot Specified by the Manufacturer

Packaging Info 

Dimensions40.2 x 9.9 x 13.6" (1020 x 250 x 345 mm)

Weight54 lb (24.5 kg)

What’s in the Box

- CBT1000 

- Two-Piece Swivel / Tilt Wall-Mount Bracket