JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk B-Stock
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- SKU
- CBT-70J-1-B
. Description
JBL CBT 70J-1 J-Shaped 2-Way Line Array Column Speaker, Black
The CBT 70J-1 delivers controlled, intelligible coverage across tracking rooms, control rooms, and live recording spaces where consistent sound propagation matters. Its distinctive J-shaped design curves naturally to project audio with precision, making it a reliable choice for fixed studio installations, isolation booths, and mixing environments demanding predictable vertical dispersion and phase coherence.
Acoustic Design & Coverage
The J-shaped curving geometry creates an asymmetrical vertical coverage pattern that progressively controls dispersion without the phase issues typical of straight arrays. The low-diffraction baffle eliminates frequency response irregularities, ensuring smooth tonal consistency across the listening area during playback and tracking. Switchable coverage patterns—45° for medium-throw and 25° for long-throw—allow you to adapt the speaker's vertical reach to different room sizes and mounting heights, optimizing early reflections and maintaining mix translation across session setups.
Components & Power Handling
The CBT 70J-1 houses sixteen 25 mm soft dome tweeters paired with four 125 mm high-power LF drivers arranged coaxially for time-aligned response. With 350W RMS power and 8 Ohm impedance, this speaker handles demanding SPL requirements while maintaining reasonable amplifier compatibility and thermal headroom for extended studio sessions and overdub tracking.
Key Features
- Sixteen 25 mm (1 in) soft dome tweeters and four 125 mm (5 in) high-power LF drivers, coaxially arranged
- J-shaped column design with asymmetrical vertical coverage pattern
- Switchable 45° medium-throw and 25° long-throw coverage angles
- Low-diffraction baffle for controlled frequency response
- 350W RMS power handling
- 8 Ohm impedance
- Frequency response: 60 Hz – 20 kHz
- Compact height: 70 cm (27.6 in)
- Progressive line array behavior without phase irregularities
- Black finish
The CBT 70J-1 combines compact form factor with acoustic discipline, making it a practical workhorse for any studio installation requiring articulate, controlled vertical dispersion and reliable phase coherence across recording and mixing workflows.
More Information
| Condition | Refurbished |
|---|
Reviews
About this B-Stock unit
| Condition | Factory B-Stock direct from the manufacturer: open box, show or demo unit, or a minor cosmetic blemish. Fully tested. |
|---|---|
| Warranty | FULL manufacturer warranty, the same as a new unit |
| Ships from | The manufacturer's US warehouse, about 2 business days handling, tracking emailed when it leaves |
| Price vs new | $296 under the new unit ($1,480) |
Prefer a brand-new one? JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk is in the catalog at $1,480.
At a Glance
The JBL CBT 70J-1 is a professional column speaker designed for fixed-installation capture and monitoring in recording studios, broadcast facilities, or production control rooms where consistent vertical coverage and articulate frequency response are critical. Its low-diffraction baffle and coaxial driver arrangement produce smooth, phase-coherent reproduction across 60 Hz–20 kHz, making it useful for accurate stereo pairs or nearfield reference in rooms where room acoustics are challenging. Choose this if your studio or control room demands predictable vertical dispersion and can benefit from its switchable coverage patterns to match room geometry.
Who This Is For
| Best suited for | Live Performance, Houses of Worship, Retail Environments, Fixed Installations |
|---|---|
| Tonal character | Controlled dispersion, articulate highs, smooth frequency response, intelligible vocals, predictable vertical coverage |
| Less specialized for | Portable PA, Mobile DJ, Small Venue Gigging (it will do it; instruments voiced for that style do it more easily) |
| Skill level | Professional |
Frequently Asked Questions
What does B-Stock mean?
B-Stock means this unit is fully functional and meets all performance specifications, but may have minor cosmetic imperfections or signs of previous handling. Sound quality and reliability are not affected.
What are the coverage pattern options?
The CBT 70J-1 offers switchable vertical coverage: 45° for medium-throw applications and 25° for long-throw installations, allowing you to adapt dispersion to different room sizes and mounting heights.
Is this speaker suitable for portable PA or mobile DJ use?
No—the CBT 70J-1 is designed for fixed installations. Its compact 70 cm height and integrated design prioritize permanent mounting in venues, retail spaces, and houses of worship rather than transport and setup flexibility.
What drivers does it use and how are they arranged?
The speaker combines sixteen 25 mm soft dome tweeters with four 125 mm high-power LF drivers, arranged coaxially for time-aligned response that maintains phase coherence across its frequency range.
What amplifier and impedance requirements does it have?
The CBT 70J-1 operates at 8 Ohm impedance with 350W RMS power handling, making it compatible with standard professional amplifiers and offering good thermal headroom for sustained use.
Do I pay sales tax on this order?
Sales tax is collected only on orders shipped to California; orders shipped to any other US state are not charged sales tax at checkout when you buy direct from our website. Marketplaces collect sales tax as the facilitator in most states, so the same listed price can cost more there. Buyers remain responsible for any use tax their state applies. Free US shipping and 30-day returns are included.
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