JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk
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- Brand new in original box
- Full JBL manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- CBT-70JE-1
. Description
JBL CBT 70JE-1 Extension for CBT 70J-1 Column Speaker, Black
The CBT 70JE-1 is a dedicated extension module that stacks onto the CBT 70J-1 column speaker to expand coverage area and add low-end punch to your rig. Built for live sound operators and installers who need to scale a system without losing tight pattern control, this extension pairs with the base unit to create a vertically extended array with deeper bass reach and controlled directivity across the venue.
Sound & Coverage
This extension delivers extended bass response down to 45 Hz and maintains precise pattern control to 400 Hz for ±20° control, with substantial off-axis cancellation extending to 200 Hz. The switchable vertical coverage modes—Narrow Mode 25° (±10°) or Broad Mode 45° (±10°)—combined with 150° horizontal coverage (±20°), let you dial in coverage to fit the room without wasting energy or creating hot spots.
Build & Rigging
The extension weighs 45 lbs and features a reinforced grille design built to handle the road and repeated venue setups. Twelve M6 mounting points accept forged shoulder steel eyebolts or swivel clips, making it simple to stack securely with the primary speaker unit for vertically mounted configurations that stay put during load-in and performance.
Key Features
- Four 25 mm (1 in) soft dome tweeters
- Eight 125 mm (5 in) high-power LF drivers
- Dual magnet neodymium motors with 38 mm (1.5 in) diameter voice coils
- 500W power handling
- Frequency range (-10 dB): 45 Hz – 20 kHz
- Extended bass response to 45 Hz
- Pattern control to 400 Hz for ±20° control
- Vertical coverage switchable: Narrow 25° (±10°) or Broad 45° (±10°)
- Horizontal coverage 150° (±20°)
- Twelve M6 mounting points for eyebolts or swivel clips
- Weight: 45 lbs
- Stronger reinforced grille design
The CBT 70JE-1 extension transforms the base CBT 70J-1 into a larger, more capable array ideal for theaters, houses of worship, conference centers, and other live and installed venues that demand precise directional control with extended low-end capability.
More Information
| Condition | New |
|---|
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At a Glance
The JBL CBT 70JE-1 is a professional extension module that stacks with the CBT 70J-1 column speaker to expand vertical coverage and boost low-end response down to 45 Hz. Designed for venues, theaters, and houses of worship that need precise directional control and flexible deployment, it delivers switchable coverage patterns (25° narrow or 45° broad) and weighted output without the footprint demands of separate cabinets. Choose it when your installation requires extended bass, pattern control to 400 Hz, and the durability to handle repeated rigging in demanding environments.
Who This Is For
Great for
- ✓ live performance
- ✓ installed systems
- ✓ worship
- ✓ conferencing
Not the best pick for
- – home recording
- – portable use
Skill level: Professional
Frequently Asked Questions
What does the CBT 70JE-1 actually do—do I need both the base speaker and extension?
The CBT 70JE-1 is an extension module designed to stack vertically with the CBT 70J-1 base unit. It expands vertical coverage, increases total output capability, and deepens the bass response to 45 Hz. You need the base CBT 70J-1 to use this extension; it is not a standalone speaker.
What venues or installations is this best suited for?
The CBT 70JE-1 excels in theaters, houses of worship, conference centers, and professional venues requiring precise directional control and extended low-end. Its switchable vertical coverage (25° narrow or 45° broad) and 150° horizontal spread make it flexible across varying room sizes and acoustic demands.
How does it handle pattern control and off-axis rejection?
The extension maintains precise pattern control to 400 Hz with ±20° coverage and delivers substantial off-axis cancellation extending to 200 Hz, keeping sound focused on the audience and minimizing room reflections. Switchable vertical modes let you dial in either tight (25°) or wider (45°) coverage depending on venue geometry.
What are the key speaker elements and power handling?
The CBT 70JE-1 houses four 1-inch soft dome tweeters and eight 5-inch high-power LF drivers with dual neodymium motors and 1.5-inch voice coils. It handles 500W of power and achieves a frequency range of 45 Hz to 20 kHz at -10 dB.
How is it mounted and rigged?
The extension weighs 45 lbs and features twelve M6 mounting points that accept forged shoulder steel eyebolts or swivel clips, enabling secure suspension and vertical stacking alongside the base CBT 70J-1 in suspended or floor-stacked configurations.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. On this item that is roughly $60 less out the door than the same listed price at a national retailer or on a marketplace. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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