CBT-70JE-1-B vs JBL-P3238MX — Compare

JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk B-Stock vs JBL SRX910LA BP  Base Plate

The CBT 70JE-1 is a column-speaker extension module for mid-to-high-frequency pattern control and bass reinforcement in fixed installations; the SRX910LA BP is a rigging base plate for stacking and aiming multiple subwoofers. Choose the CBT 70JE-1 if you need vertical speaker coverage expansion, and the SRX910LA BP if you're deploying multiple subs that need stable, angle-adjustable positioning.

No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.

JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk B-Stock

$684.00
View JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk B-Stock

JBL SRX910LA BP  Base Plate

$749.00
View JBL SRX910LA BP  Base Plate

Specs side by side

JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk B-StockJBL SRX910LA BP  Base Plate
Price$684.00$749.00
BrandJBLJBL
Speaker TypeColumn
Install TypeInstalledInstalled
ConditionRefurbishedNew

Why choose JBL Cbt 70JE-1 Extension For Cbt 70J-1 Column Spk, Blk B-Stock

  • Extends vertical coverage and output of CBT 70J-1 column systems with switchable narrow (25°) or broad (45°) directivity modes
  • Delivers extended bass to 45 Hz with precise pattern control to 400 Hz for focused, directional sound
  • Twelve M6 mounting points and forged eyebolts enable flexible, secure suspension in stacked configurations
  • 500W power handling with high-power LF drivers suited for large venues and worship spaces

Why choose JBL SRX910LA BP  Base Plate

  • Purpose-built base plate stabilizes up to 4 SRX910LA subwoofers in unified, angle-adjustable arrays
  • Tool-free height and angle adjustment (-15 to +5 degrees) via included M20 thumb screw for quick setup and tuning
  • Dual-mounting design with M10 through-holes for permanent structural attachment or temporary deployment
  • Compact, transport-friendly accessory that transforms individual subs into a coordinated bass-reinforcement system
Bottom line: Choose the CBT 70JE-1 if you operate a CBT 70J-1 system and need to expand vertical coverage or increase bass output in a fixed installation. Choose the SRX910LA BP if you deploy SRX910LA subwoofers and require stable, flexible multi-unit rigging and aiming.

Frequently asked questions

Can I use these products together?

No. The CBT 70JE-1 extends the CBT 70J-1 column speaker for mid-to-high-frequency coverage, while the SRX910LA BP is a rigging accessory for subwoofers. They serve different roles in a sound system and are not compatible with each other.

Which product is better for touring?

The SRX910LA BP is designed for both temporary and permanent installations and includes tool-free adjustment, making it more portable for touring setups. The CBT 70JE-1 is optimized for fixed installations in venues, churches, and theaters.

What venues suit each product?

The CBT 70JE-1 is ideal for live performance, houses of worship, theaters, and installed sound systems requiring precise vertical pattern control. The SRX910LA BP is suited for live touring, venue installation, and any deployment requiring multiple-subwoofer bass reinforcement arrays.

Are these B-stock items professionally reliable?

Both products are professional-grade; the CBT 70JE-1 is listed as B-stock (typically cosmetic or minor packaging issues), while the SRX910LA BP appears to be standard stock. B-stock does not affect functionality or warranty terms—verify with the retailer.

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