CBT-1000E-B vs JBL-P3363MX — Compare
JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock vs JBL SRX915M Powered Point-source Speaker
The CBT 1000E is a passive bass extension module that upgrades an existing CBT 1000 column speaker for deep low-end in large venues, while the SRX915M is a self-contained powered point-source speaker with built-in amplification and DSP. Choose the CBT 1000E if you already own a CBT 1000 and need expandable bass; choose the SRX915M if you want a standalone, all-in-one solution for touring and gigging.
No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.
JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock
Specs side by side
| JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock | JBL SRX915M Powered Point-source Speaker | |
|---|---|---|
| Price | $1,496.00 | $1,899.00 |
| Brand | JBL | JBL |
| Speaker Type | Column | Portable PA |
| Install Type | Installed | Portable |
| Condition | Refurbished | New |
Why choose JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock
- ✓ Extends CBT 1000 bass response below 38 Hz for full-range capability
- ✓ Six 165 mm drivers deliver 124–130 dB SPL in critical mid-bass band
- ✓ Compact, stackable form factor maintains column speaker portability
- ✓ Cost-effective upgrade if CBT 1000 already in inventory
Why choose JBL SRX915M Powered Point-source Speaker
- ✓ Fully powered with integrated amplification and DSP—no external amp needed
- ✓ Built-in delay, 24 filters, and loudspeaker management tools for venue tuning
- ✓ Rotatable 90 x 60 degree waveguide ensures controlled, predictable coverage
- ✓ Self-contained point-source design works as main speaker or floor monitor
Frequently asked questions
Do I need to own a CBT 1000 to use the CBT 1000E?
Yes, the CBT 1000E is a passive extension module designed exclusively to pair with the CBT 1000 column speaker via the included coupler plate. It cannot operate independently.
Which system requires external amplification?
The CBT 1000E requires an external powered amplifier (1500W rated power handling). The SRX915M has built-in amplification and needs only audio input and power.
Which is better for portable touring applications?
The SRX915M is more portable because it is a single, self-powered unit with no external amp or cable complexity. The CBT 1000E system requires stacking two enclosures, cabling, and a separate amplifier, making setup less compact.
What frequency range does each cover?
The CBT 1000E extends to below 38 Hz when paired with a CBT 1000. The SRX915M alone covers 50 Hz–20 kHz; pairing it with SRX900 subwoofers and engaging the 80 Hz highpass filter optimizes low-end management in full systems.