JBL CBT 1000 Data Sheet
CBT 1000
Key Features:
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Vertical pattern coverage individually adjustable
with four (4) “Pattern Up” coverage angles
and four (4) “Pattern Down” coverage angles
for a total of sixteen (16) different coverage
combinations, all without the use of external
DSP processing.
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Asymmetrical vertical settings send more sound
toward far area of room to make front-to-back
sound levels more consistent.
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Components:
• Twenty-four (24) 25 mm (1 in) extra-highpower soft dome tweeters.
• Six (6) 165 mm (6-1/2 in) high-excursion
LF drivers arranged coaxially.
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Very high sound levels up to 131 dB (137 dB
peaks), depending on the settings.
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Constant Beamwidth Technology™ provides
constant directivity coverage and reduces out of
coverage lobing.
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Patent-pending 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.
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Wide 45 Hz - 20 kHz frequency response.
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Switchable voicing provides at response in
music mode or mid-range presence peak in
speech mode.
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Swivel (pan)/tilt wall bracket included.
Constant Beamwidth Technology™ High-Output
Two-Way Line Array Column with Adjustable
Vertical Coverage & Tapered Horizontal Waveguide
Shown with included grille. Grille removed.
Overview:
The CBT 1000 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
difcult acoustic environments.
The two-way coaxial design provides a wide 45 Hz – 20 kHz bandwidth. The low-diffraction
bafe eliminates frequency response irregularities that could otherwise occur due to bafe
discontinuities. The thick, heavy-duty aluminum grille allows for rust-free installation
outdoors. At 102 cm (40.2 in) tall and only 25 cm (9.9 in) wide, the design ts well with
virtually any architectural décor.
CBT 1000 Two-Way Line Array Column with Adjustable Vertical Coverage
and Tapered Horizontal Waveguide
Applications
Combining superior sound quality, excellent pattern control, asymmetrical vertical coverage, continuously variable horizontal dispersion, and compact
design makes the CBT 1000 extremely versatile. It is ideal for applications such as performance auditoriums, houses of worship, lecture halls, classrooms,
cinema main speakers or very high-output surrounds, multipurpose spaces, A /V, transit centers, sports facilities, racetracks, theme parks, outdoor locations,
and high-level ll applications, among many others.
Adjustable Coverage to Fit the Application
Vertical pattern coverage settings are set via easy-to-congure headers located in a covered compartment on the side of the speaker. The innovative
adjustability allows the installer to switch through a range of four (4) “Pattern Up” coverage angles and four (4) “Pattern Down” coverage angles for a total
of sixteen (16) different coverage combinations. Additionally, the use of a patent-pending Tapered Horizontal Waveguide provides a continuously varying
horizontal dispersion (very wide for short-throw, narrower for mid-throw, even more narrow for long-throw) delivering superior coverage in both the front
and rear corners of a room while reducing undesirable over-splash. These unique features allow the user to more closely match the coverage and throw
requirements to the application, and the coverage selection can be easily switched in-venue with the speaker already installed. These innovations allow a
single loudspeaker model to excel in an extremely wide variety of project types.
User Variable Voicing
The voicing can be set to match the application through a Music/Speech switch. The Music setting provides at frequency response, while the Speech
setting produces a mid-range presence boost to provide clear, intelligible speech even at the longest throw distances, along with increased midrange
sensitivities for higher midrange maximum output capability.
Drivers
The low frequency drivers feature lightweight neodymium motors with 50 mm (2.0 in) diameter voice coils. The magnet system provides maximum ux in
a compact package. The magnet structure is magnetically shielded and the drivers have a copper cap on the pole to minimize ux modulation and linearize
inductance, resulting in lower distortion and improved frequency response. The 16 mm (0.63 in) 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.
SonicGuard
Dynamic SonicGuard™ protection on the high frequency section minimizes 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.
™
Bracketry & Insert Points
A two-part swivel (pan) / tilt wall-mount bracket is included. Fourteen (14) M8 brass inserts are located on the back panel in a spacing pattern that ts
common third-party mounting brackets. In addition, four insert points each are located on the top and bottom end-caps. These insert points can be
utilized to suspend the speaker using forged shoulder steel eyebolts or swivel mounting rings, providing installation versatility. Optional brackets include
MTC-CBT-FM3 (in MTC-CBT1K-ACC1 kit) for ush-mounting the back of the speaker to a wall, and MTC-CBT-SUS3 CBT Series suspension bracket kit.
Outdoor Capability
CBT 1000 can be installed either indoors or outdoors. The drivers are weather-treated, the berglass reinforced ABS cabinet is excellent for outdoor
applications, and the paint is UV resistant. External screws are stainless steel and the powder coated 1050 aluminum grille resists rust in the harshest of
conditions. The optional MTC-PC2 panel cover with gland nut seals the terminal compartment from excessive moisture.
Color
Available in black (RAL9004) or White (-WH) (RAL9016).
CBT 1000 Two-Way Line Array Column with Adjustable Vertical Coverage
and Tapered Horizontal Waveguide
Specications:
System:
Components: Six (6) 165 mm (6.5 in) LF drivers
Twenty-four (24) 25 mm (1 in) HF drivers
Frequency Range (-10 dB)1: 45 Hz – 20 kHz
Sensitivity (2.83V@ 1m)
95 dB (at lowest sensitivity setting: “Medium” pattern up, “Downll” pattern down, “Music” voicing in free space)
Nominal Impedance: 4 ohms (4 ohms above 1 kHz; 8 ohms below 800 Hz)
Power Capacity3: 1500 W (6000 W peak), 2 hrs
1000 W (4000 W peak), 100 hrs
Maximum Input Voltage: 65.0 Volts RMS (2 hrs), 130.0 Volts Peak
Max SPL4: 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
Highest directivity setting: (“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, “Downll” pattern down) with “Speech” voicing:
128 dB continuous average pink noise
131 dB continuous program
134 dB peak
Lowest directivity setting: (“Medium” pattern up, “Downll” pattern down) with “Music” voicing:
124 dB continuous average pink noise
127 dB continuous program
130 dB peak
Vertical Coverage Settings: Coverage is effective (frequency response similar) beyond the traditional -6 dB coverage angles. This is especially useful in
compensating for differences in listening distances. Figures show both the -6 dB and -12 dB coverage angles (at 3 kHz).
Angles are in reference to cabinet aiming axis.
Pattern UP Settings:
“Point”: -6dB @ +7°, -12 dB @ +12°
“Tight”: -6dB @ +9°, -12 dB @ +15°
“Narrow”: -6dB @ +10°, -12 dB @ +20°
“Medium”: -6dB @ +13°, -12 dB @ +24°
Pattern DOWN Settings:
“Point”: -6dB @ -7°, -12 dB @ -12°
“Narrow”: -6dB @ -10°, -12 dB @ -20°
“Broad”: -6dB @ -17°, -12 dB @ -28°
“Downll”: -6dB @ -20°, -12 dB @ -35°
Horizontal Coverage: Patent-pending Tapered Horizontal Waveguide continuously variable.
Long-throw (top) section: 100°
Middle section: 130°
Short-throw (bottom) section: 160°
Recommended High-Pass: 35Hz, 24 dB/oct or greater
Transducers:
Low Frequency Drivers: 6 pcs, 165 mm (6.5 in) drivers, lightweight neodymium motors, 50 mm (2.0 in) diameter voice coils, copper-capped pole
High Frequency Drivers: 24 pcs, 25 mm (1 in) drivers, neodymium, encased magnet and coated diaphragm for moisture, UV, and salt resistance.
1, 2
: 102 dB (at highest sensitivity setting: “Point” pattern up, “Point” pattern down, “Speech” voicing, in free space)
tips to minimize ux modulation and linearize inductance, 16 mm (0.63 in) long coil for high linear drive and high power
handling, damped blended textile surround, coated cones for moisture, UV and salt resistance. Magnetically shielded.
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