AC115S-WH vs CBT-1000E-B — Compare
JBL AC115S-WH 15" Subwoofer, white vs JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock
The AC115S-WH is a standalone powered 15" subwoofer for compact installed systems and portable rigs, while the CBT 1000E is a passive bass-extension module that requires a CBT 1000 column speaker to function as a full-range system. Choose the AC115S-WH for independent, space-efficient bass reinforcement; choose the CBT 1000E if you already own or plan to buy a CBT 1000 and need extended low-end for larger venues.
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 AC115S-WH 15" Subwoofer, white | JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock | |
|---|---|---|
| Price | $1,550.00 | $1,496.00 |
| Brand | JBL | JBL |
| Speaker Type | Subwoofer | Column |
| Install Type | Installed | Installed |
| Condition | New | Refurbished |
Why choose JBL AC115S-WH 15" Subwoofer, white
- ✓ Completely self-contained: built-in amplifier, no external processor needed
- ✓ Compact footprint with front-loaded vented design saves physical space
- ✓ Immediate 32–250 Hz bass extension; ready to deploy alone or with other speakers
- ✓ Dual Neutrik connectors plus barrier terminals offer flexible wiring options
Why choose JBL Cbt 1000E Extension For Cbt 1000 Column Speaker , Blk B-Stock
- ✓ Extends CBT 1000 column speaker down to below 38 Hz for truly full-range output
- ✓ Six 6.5-inch high-excursion drivers deliver 124–130 dB SPL in critical mid-bass band
- ✓ 1500 W power handling supports large-venue and touring applications
- ✓ Fiberglass-reinforced ABS construction and included coupler plate for quick integration
Frequently asked questions
Can I use either of these as a standalone bass solution?
Only the AC115S-WH works independently; it is a powered subwoofer with an integrated 400 W amplifier. The CBT 1000E is a passive extension module and requires a CBT 1000 column speaker plus external amplification to produce any sound.
Which one handles louder applications?
The CBT 1000E achieves up to 130 dB SPL in half-space (65–300 Hz band) and handles 1500 W of power, making it better suited for large venues. The AC115S-WH maxes out at 120–126 dB SPL and is designed for medium-sized rooms and outdoor reinforcement.
What is the lowest frequency each produces?
The AC115S-WH extends to 32 Hz (−10 dB) or 40 Hz (±3 dB). The CBT 1000E extends the CBT 1000 below 38 Hz, offering deeper bass extension when used as a system.
Which is more portable or lighter?
The AC115S-WH is a compact single unit designed for portable PA rigs and installed sound systems with a modest footprint. Specifications for weight and dimensions of the CBT 1000E are not provided, but extension modules typically add significant size and weight to a column system.