JBL CBT-1000 High-Output Two-Way Line Array Column Loudspeaker (Black)

Description

The JBL CBT-1000 High-Output Two-Way Line Array Column Loudspeaker represents the next-generation in pattern control, expanding upon JBL’s highly successful CBT Constant Beamwidth Technology products. Utilizing patented complex analog beam-forming, the CBT 1000 provides superior and consistent vertical coverage without the narrow vertical beaming and out-of-coverage lobing that are typical of straight form-factor column speakers.

The CBT 1000 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. 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-toback SPL levels than would be the case from a traditional speaker or column that projects symmetrically in the vertical plane. 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 new patent-pending Tapered Horizontal Waveguide design provides a continuously varying horizontal dispersion by providing a very wide angle of dispersion for the short-throw distances while also providing 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 to work well in difficult acoustic environments.

The two-way coaxial design provides a wide 45 Hz – 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. At 102 cm tall and only 25 cm wide, the design fits well with virtually any architectural décor.

Features

• Equipped with twenty-four 25.4mm high power soft dome tweeters and six coaxially arranged 165.1mm 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