JBL CBT1000 Two-Way Line Array Column Loudspeaker with Constant Beamwidth Technology (White)

Description

The white JBL CBT1000 Two-Way Line Array Column Loudspeaker with Constant Beamwidth Technology (White) 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. Utilising complex analogue 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 minimise 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 aluminium grille allows for rust-free installation outdoors.

Key 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 SonicGuard protection on the high frequency section minimises distortion at high drive levels and maximises 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 utilised to suspend the speaker using forged shoulder steel eyebolts or swivel mounting rings, providing installation versatility
• Fibreglass reinforced ABS cabinet with UV-resistant paint and powder-coated 1050 aluminium 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 centres, sports facilities, racetracks, theme parks, outdoor locations, and more